HP Color Laserjet Printer 3550 Bedienungsanleitung

hp color LaserJet3500/3550 and 3700series printerservice

Paper feeder ...197Pickup/deliv

Setting security on the printerThis printer features control panel locking, which allows network administrators to preventusers from changing certain

Use HP Web Jetadmin software, HP LaserJet Utility for Macintosh, or an ASCII escapesequence to set security. HP software, which comes on the software

Printer memory for the HP Color LaserJet 3700 series printerThe printer has three DIMM slots. The bottom slot is for the firmware DIMM.NOTEFor maximum

Installing memory and font DIMMsYou can install more memory for the printer, and you can also install a font DIMM to allowthe printer to print charact

3. Open the DIMM access door by gently prying it with a flat-bladed screwdriver. Removethe door by pulling the door toward the back of the printer.4.

6. Holding the DIMM by the edges, align the notches on the DIMM with the bars in theDIMM slot.7. Firmly press the DIMM straight into the slot. Close t

8. Align the formatter door in the tracks at the bottom of the slot, and turn the screws tosecure the formatter door to the printer.9. Replace the DIM

11. Turn the printer on.12. If you installed a memory DIMM, go to Enabling memory. If you installed a language fontDIMM, go to Enabling the language f

To enable fonts from the PCL 6 printer driver for Windows1. On the Start menu, point to Settings, and click Printers.2. Select this printer and select

Installing an HP Jetdirect print server card in the HP colorLaserJet 3700 series printerYou can install an HP Jetdirect print server card in the base

Fuser front paper sensor (PS6) removal ...256Fuser delivery paper sensor (PS7) re

3. Locate the EIO slot. Loosen and remove the two retaining screws holding the EIO slotcover to the printer and remove the cover. You will not need th

6. Reconnect the power cable and turn the printer on.7. Print a configuration page. In addition to a printer configuration page and a SuppliesStatus p

Installing an HP Jetdirect en3700 external print server1. Attach the HP Jetdirect en3700 external print server to a 10Base-T or to a 100Base-Tlocal ne

3. The 10 or the 100 LED turns on, indicating a network connection, and the power/statusLED blinks. After 15 seconds, the power/status LED light and t

90 Chapter 3 Installation and configuration ENWW

4Printer maintenanceChapter contentsThis chapter contains the following sections.Chapter contents ...

Cleaning the printer and accessoriesClean the outside surfaces with a water-dampened cloth. Observe the warning and cautionbelow.WARNING!Before you be

Cleaning modeDuring the printing process, paper, toner, and dust particles can accumulate inside theprinter. Over time, this buildup can cause print-q

Managing suppliesUsing, storing, and monitoring print cartridges can help ensure quality printer output.Supplies lifeThe life of the print cartridge d

Table 4-3. Approximate replacement intervalsItem Printer message Page count Approximate timeperiod1Print cartridges REPLACE BLACKCARTRIDGE6,000 pages2

7 TroubleshootingChapter contents ...3

Locating supplies and partsSupplies and parts are identified by labeling and by blue plastic handles.The following graphic shows the location of each

Replacing supply itemsCarefully follow the guidelines in this section when replacing printer supplies or parts.Replace a print cartridge when the prin

3. Remove the new print cartridge from the bag. Place the used print cartridge in the bagfor recycling.4. Grasp both sides of the cartridge and distri

6. Align the print cartridge with the tracks inside the printer, and using the blue handle,insert the print cartridge until it is firmly seated.7. Fir

1. Lift the front door handle and pull down the front door.WARNING!Do not place anything on the transfer unit. Do not touch the top of the transfer un

3. Grasp the left blue handle and lift to remove the transfer unit from the printer.NOTEFor information on how to properly dispose of the used transfe

6. Guide the left side of the transfer unit into the front door of the printer. Insert the twopegs on the left side into the holes, and then lower the

NOTEIf the old transfer unit was not at end-of-life when it was replaced (for example, if it wasdamaged), the transfer unit count must be reset using

To replace the fuser1. Turn the printer off.WARNING!The fuser might be hot. Wait 10 minutes before proceeding.2. Open the lower rear door (rear output

4. Lift and pull the lower rear door (rear output bin) while using your finger to press the tabwith ridges on the left side of the door. Remove the lo

Image defects ...390Light image

7. Remove the new fuser from the bag.8. Hold the fuser with your thumbs on the blue ridges and fingers on the blue latches. Pushboth sides of the fuse

10. Rotate the green levers to the up position.11. To reattach the lower rear door (rear output bin), hold the door at a 45° angle, and fit thepeg int

12. Press the ridges on the tab on the left side of the door, and fit the peg into the round hole.13. Close the lower rear door (rear output bin).NOTE

1. Remove Tray 2 and place it on a flat surface.2. Use one finger to push on the blue side of the pickup roller until the peg comes out ofthe right ho

4. Remove the new pickup roller from the bag.NOTEFor information on how to properly dispose of the used pickup roller, go to http://www.hp.com/recycle

7. Rotate the blue side of the pickup roller until it clicks into place.8. Replace Tray 2.9. Turn the printer on. After a short time, the printer cont

112 Chapter 4 Printer maintenance ENWW

5Theory of operationChapter contentsThis chapter contains the following sections.Chapter contents ...

Basic operationThe HP Color LaserJet 3500/3550 and 3700 series printer functions are divided into foursystems:1. Engine control system2. Laser/scanner

Table 5-1. Basic operation sequencePeriod Purpose RemarkWAIT(waitperiod)From the time the powerswitch is turned on until theITB cleaning is completed.

Event log ...431Diagnostics ...

Power-on sequencesThe figure below shows the sequence from the time the power is switched on until STBYperiod.Figure 5-2.Power-on sequenceFigure note

4. The color misregistration control controls the correction of both horizontal and verticalmisregistration. See Color misregistration control, later

6. The automatic paper delivery system is activated if a residual paper is detected.EngagingEngagingPRNTSTBY12345678910111213141516171819202122WAITINT

Engine control systemThe engine control system functions as the brain of the printer. It controls the laser/scannersystem, the image formation system,

NOTESee the General circuit diagram in Chapter 7, for detailed information on the printer circuitry.Figure 5-5.DC controller circuit120 Chapter 5 Theo

Block functionsCPU (IC1001)The 16-bit single-chip microcomputer that constitutes the CPU incorporates ROM and RAMand controls the following operations

Table 5-2. Motor FunctionsName Function Type Direction ofrotationSpeed switching FailuredetectionM1 FeedmotorDrives the pick-uproller, feed roller,dup

Figure 5-6.Motor locationsTable 5-3. Function of solenoidsName FunctionSL2 Tray 2 (cassette) pick-up solenoid Drives the Tray 2 (cassette) pick-up rol

Figure 5-7.Solenoid and clutch locationsDrum motor controlThe drum motor control controls the drive of the drum motor (M3).The drum motor is a three-p

Under the following conditions, the DC controller judges the drum motor faulty and sends anerror message to the formatter:● Drum motor start abnormali

List of tablesTable 1-1. Features ...6Table 1

The DC controller monitors the FAN ROTATION DETECTION signal (/FANS) to control theRPM of the fan. The /FANS signal outputs (turn “L”) when the fan ro

Fuser control circuitThe fuser control circuit controls the temperature of the fuser. The following figure shows theceramic heater fusing method used

The heater temperature control controls the drive signals of the fuser heater to monitor andmaintain the surface temperatures of the fuser sleeve and

● Print temperature control: Maintains the fuser heater in the printer at the targettemperature. The CPU raises the target temperature in stages in on

NOTEThe thermoswitch is some distance away from the fuser heater. The actual temperature ofthe fuser heater is about 50˚ C (122˚ F) higher than the te

Low-voltage power supply circuitThis circuit converts AC voltage from the power supply receptacle to DC power and supplyeach load.Figure 5-14.Low-volt

The major recipients of the +24 V, +5 V, and +3.3 V DC power are listed below.● +24 V: motors, solenoids, clutches, high-voltage power supply PCB, mem

The DC controller controls the high-voltage power supply circuit and generates the high-voltage bias. See Image formation system for the details on im

Primary transfer bias generationThe primary transfer biases (TR11, TR12, TR13, TR14) are output to transfer the toner onthe photosensitive drum to the

Video interface controlThe video interface enables communication between the formatter and the DC controller.The formatter uses the video interface to

Table 7-16. Image defects ...390Table 7-17. Causes for li

8. The DC controller re-feeds the paper after a specified time from /TOP signal output andtransfers the toner image from the ITB onto the paper. This

The types and purposes of the VIDEO INTERFACE signals are described below.● VDO1, /VDO1, VDO2, /VDO2, VDO3, /VDO3, VDO4, /VDO4, (VIDEO) signals (forma

/BD1, /BD2, /BD3, /BD4 (HORIZONTAL SYNCHRONOUS) signals (formatter input): Thissignal synchronizes the horizontal (main) scanning line: the reference

Laser/scanner systemThe laser/scanner system forms latent images on the photosensitive drum according to theVIDEO signals sent from the formatter. The

1. Upon receiving a print command from the formatter, the DC controller outputs theSCANNER MOTOR SPEED CONTROL signals (Y/M: /ACC1, /DEC1 C/Bk: /ACC2,

The laser driver PCB is divided into two. One is for Y/M, and the other for C/K. The Y/M laserdriver PCB only is described here, as both are identical

● Horizontal synchronization control● Image masking controlThe LASER CURRENT OUTPUT signal (PDOUT) is an analog signal generated bytransforming the am

5. Upon receipt of /BD1 and /BD2 signals, the formatter sends the VIDEO signals (VDO1, /VDO1, VDO2, /VDO2) to the DC controller to align the scanning

Failure detectionThis control monitors any failure of the laser diode.The laser IC converts the laser current of the LD to voltage during initial APC

Speed controlThe speed control maintains the scanner motor rotation at a specified speed.The following is the sequence of steps performed by the speed

Table 8-22. Left swing frame assembly ...529Table 8-23. Fuser assembly ...

Image formation systemThe image formation system, which serves as the nerve center of the printer, forms a tonerimage on paper.The DC controller contr

Figure 5-25.Image formation system (signal paths)Print processThe print process can be divided into nine steps, which are executed in five blocks. A t

The print process blocks and the steps performed in them are listed below. Refer to Figure5-26. Print process diagram to see the placement of the bloc

● Fuser block: Fixes or fuses a toner image on paper.● Fuser● Cleaning block: Clears the residual toner on the photosensitive drum and the ITB.● ITB c

Electrostatic latent image formation blockThis block consists of two steps, where an electrostatic latent image is formed on thephotosensitive drums.T

An electrostatic latent image is formed on the photosensitive drum in this step. As the laserbeam scans the negatively charged drum surface, the negat

Contacting the photosensitive drum, the negatively charged toner sticks to the area exposedto the laser beam. This is because the exposed area has hig

The toner image on the photosensitive drum is transferred onto the ITB in this step. (The ITBis a thin seamless belt made of resins. It is of low resi

The static charge on the back of the paper is decreased with the static charge eliminator toreduce static cling and make it easy to separate the paper

A positive DC bias is applied to the pressure roller to enhance the power to hold the toner onpaper and prevent the toner from being attracted to the

xvi ENWW

The residual toner on the drum is scraped away with a cleaning blade and delivered to thewaste toner container inside the cartridge afterwards. This c

Each cartridge has a built-in memory tag, into which the memory controller PCB reads/writesdata.Figure 5-38.Cartridge diagramFigure notes:● M3: Drum m

1. Memory tag control2. Cartridge presence detection3. Cartridge life detection4. Developing cylinder engaging/disengaging control5. Developing cylind

6. The above operations are detailed in the following sections.NOTEThe cartridges are driven by two motors so the K cartridge can be driven independen

Memory tag controlThe memory tag is a nonvolatile memory built in the print cartridge.The cartridge usage condition is monitored by reading/writing th

The DC controller judges the cartridge presence based on the primary transfer current. TheDC controller measures the primary transfer current when the

The DC controller detects the end of toner by monitoring the amount of time it takes for lightto pass through the cartridge during printing.There is a

1. The DC controller turns ON the developing engaging clutch (CL3).2. When the CL3 stays engaged for specified time, the drive of delivery motor (M2)

The DC controller disengages the developing cylinder to start this control and apply twonegative biases alternately to the primary charging roller. Th

1. ITB cleaning control2. Waste toner level monitor3. Primary transfer roller engaging/disengaging control4. Secondary transfer roller engaging/diseng

List of figuresFigure 1-1. HP Color LaserJet 3500/3550 printer ...3Figure 1-2. HP Color La

The above operations are discussed in the following sections.Figure 5-44.Transfer sectionM1: Feed motorM3: Drum motorM5: Primary transfer engaging mot

ITB cleaning controlThis controls the removal of the residual toner from the ITB to prevent an image defect.The following is the sequence of this cont

The waste toner container has a light guide and a waste toner level sensor (PS13) on thetop. The light from the light emitter on the PS13 is let in to

If neither the PS12 or the PS13 receives light, the DC controller judges that the “transfer unitis not present, OUT” and sends an error message to the

NOTEThe accumulated rotation time of the drum motor can be cleared by the formatter.Remember to reset the transfer unit life expectancy value (accumul

This mechanism functions whenever the ITB rotates to prevent misalignment of the ITB.Figure 5-49.ITB self-aligning mechanismPrimary transfer roller en

The primary transfer rollers engage back with the drums when the M5 is turnedcounterclockwise and the cam pushes the holder up.Figure 5-50.Primary tra

The secondary transfer roller disengages from the ITB when the DC controller turns the SL4again for 0.5 second and rotates the cam a half turn.Figure

The DC controller judges the engagement/disengagement mechanism faulty and sends theerror message to the formatter when the T2SNS signal is not input/

2. The DC controller measures each color’s misregistration based on the positions of thepatterns detected by the misregistration detection (See Color

Figure 5-20. Laser/scanner unit ...139Figure 5-21. Laser control

NOTEThe horizontal scanning scale is the size of the image in horizontal scanning. Every colorhas its own photosensitive drum in each cartridge in thi

The DC controller monitors the color misregistration sensors (PS12) during the foregoingcolor misregistration control. There are two units of PS12 on

There are three kinds of controls executed as necessary.● Environmental change control: The environmental condition sensor (PS15) controls thebias acc

The environmental conditions sensor (PS15) on top of the fan detects the temperature andthe humidity. The PS15 sends this information to the DC contro

2. The DC controller detects the density of the density detection patterns on the ITB by theimage density detection and sends the data back to the for

The DC controller notifies the formatter of each error when the following errors are foundduring image density detection. The initial value is reset t

Pickup/feed systemThe pickup/feed system, being comprised of various feed rollers, picks up and feeds a sheetof paper.This printer has two pickup tray

NOTEThe terms fixing and fuser refer to the same operation (or assembly) and are usedinterchangeably in this document. Also, ITB unit and transfer uni

2. Fuser/delivery unit: fuser to delivery source3. Duplexing feed unit (3700 printer only): fuser delivery source to registration roller inletFigure 5

1. The printer controls the fuser heater temperature and drives the scanner motor uponreceipt of a print command from the formatter.2. When the fuser

Figure 6-8. Left front cover removal (2 of 3) ...212Figure 6-9. Left front cover remo

9. The toner is transferred onto the paper on the ITB and the paper is then fed to the fuser/delivery unit.Figure 5-59.Pickup/delivery unit blockPS1 T

Table 5-5. Print media and feed speedsPrint mode Medium type Feed speedNormal Plain paper NormalOHT OHT one-quarter speedThick 1 Thick paper half-spee

1. The registration shutter stops the fed paper and evens up the edge of the paper alongthe shutter.2. As the feed roller continues rotating, the pape

Media detectionThis printer detects the media type to prevent a fuser defect.The DC controller controls the media sensor (PS5) for this detection.The

2. The paper is pressed between the fuser sleeve and the pressure roller to fuse the toneron top and then delivered out of the fuser.3. When the leadi

4. When the paper end is detected by the fuser delivery paper sensor (PS7), the M2rotates at double-speed and delivers the paper out to the face-down

Duplexing feed unit (HP 3700 printer only)The duplexing feed unit reverses the paper after one side is printed and re-feeds it to thepickup/feed unit

7. The paper, after re-correction of skew by the registration roller, is fed to the delivery trayfor printing the other side.NOTETwo stationary A4 or

3. As it rotates counterclockwise by the M2, the delivery roller turns the paper around. Thereversed paper is fed to the duplex delivery unit by the g

Table 5-6. Conditions of available duplex feedPaper size Print mode Duplex feed modeA4, Letter Plain paperGloss paperGloss film1 sheet feedPlain paper

Figure 6-64. Left swing guide removal (6 of 6) ...248Figure 6-65. Left swing guide repl

6. Delivery stationary jam: When the paper does not reach the face-down paper sensor(PS8) within the allotted amount of time after paper has reached t

Paper feederThe paper feeder is an optional unit that is installed at the bottom of the printer. It picks upand delivers a sheet of paper to the print

Figure 5-66. Paper feeder PCB signal flow illustrates the flow of signals to and from thepaper feeder PCB.Figure 5-66.Paper feeder PCB signal flowPick

6. The paper, having had the image on the ITB transferred on it, is fed to the fuser/deliveryunit.Figure 5-67.Pickup/delivery sequencePaper jam detect

200 Chapter 5 Theory of operation ENWW

6Removal and replacementChapter contentsThis chapter contains the following sections:Chapter contents ...

Swing guide removal, right ...242Swing guide removal, left .

500-Sheet paper feeder internal parts ...298Pick-up roller removal - 50

IntroductionRemoval and replacement procedures are provided for all replaceable parts in the printer.Removal and replacement strategyThis chapter expl

NOTEAll components in the HP Color LaserJet 3500/3550 and 3700 series printers use Phillips-head screws that require a #2 Phillips screwdriver. Ensure

Figure 6-120. Formatter PCB (HP 3700) removal (2 of 2) ...281Figure 6-121. HP 3500/3550 and HP 3700 ...

Illustration Description Size Part number UseSCREW, RS M3X6 XA9-1499-000CNSecures metal to metal.SCREW, RS M3X8 XA9-1445-000CNSecures any material(exc

SuppliesThe customer replaces print cartridges, the fuser, and the transfer unit as they are depleted.Chapter 4 explains when to replace supplies and

Supply item Printer message HP 3500PagecountsHP 3550/3700Page countsApproximate timeperiod1To installImage fuser kit REPLACE FUSER KIT60,000 pages275,

CoversThe following procedures describe removal of the printers external covers.Figure 6-2.Cover locations1 Left cover2 Top cover3 Front door4 Tray 1

6. Remove two screws (2) from the right hinge (3).Figure 6-3.Front door removal (1 of 2)7. Remove two screws (1) from the left hinge (2).Figure 6-4.Fr

2. Slide the cover back in the direction of the arrow (2) about one inch, and then pull it outaway from the printer to remove it.Figure 6-5.Left cover

5. If necessary to better access the area, remove the toroid from the cable. To remove thetoroid, lift up on the strip (1) and swing the top cover (2)

7. Unhook three more claws by pressing in or squeezing, at the indicated locations (1),working up from the bottom, to remove the cover (2) from the pr

Top cover removal1. Open the printer front door and remove the transfer unit. See Transfer unit removal.2. Remove the right cover. See Right cover rem

Rear cover removal1. Release two claws on the right side of the rear cover by inserting a flat-bladescrewdriver into each claw location (1) and twist

Figure 7-18. Location of main parts ...451Figure 7-19. Location of swi

Tray 1 (multipurpose) removal1. Open the Tray 1.2. Remove two pins (1) by flexing the slotted rail (2) to release the pin.3. Press in on the left hing

Main AssembliesThe following procedures describe removal of the printer's major internal mechanicalassemblies.Figure 6-16.Main internal assemblie

Transfer unit removalCAUTIONDo not touch the surface (5), shown in the figure below, of the image transfer belt (ITB) sinceit can cause an image defec

2. Hold the blue handles (1) on both sides of the transfer unit. With your right thumb, pressand hold the lever (2) on the right side handle then lift

NOTEWhen performing any servicing inside the printer, all four print cartridges should be removed.2. Do not touch the surface of the print cartridge d

2. Hold the release tabs on each side of the fuser by placing your thumbs on the top tabs(1) and your forefingers on the lower tabs (2). Press up on t

3. Pull the face-down assembly out slightly, disconnect one connector (2) from the back,and then remove the assembly (3).Figure 6-21.Face-down deliver

4. Remove six screws (2) and pull the laser/scanner assembly out slightly, disconnect twoflat cables (3), and remove the assembly.Figure 6-22.Laser/sc

4. Remove five screws (3) and remove the image drive assembly (4).Figure 6-23.Image drive assembly removalReinstallation tipWhen replacing the image d

Developing engaging drive assembly removal1. Remove the laser/scanner assembly. See Laser/scanner assembly removal.2. Disconnect one connector (1).3.

1Printer descriptionChapter contentsThis chapter contains the following sections.Chapter contents ...

4. Remove two screws (1) and disconnect the right rod bracket (2) from the front door.Figure 6-25.Pick-up/feed assembly removal (1 of 13)5. Remove two

6. Remove two screws (1) and remove the right swing rod arm (2).Figure 6-27.Pick-up/feed assembly removal (3 of 13)Reinstallation tipWhen installing t

7. Push the engaging rack (1) all the way back, as shown by the arrow (2), until it stops.Figure 6-29.Pick-up/feed assembly removal (4 of 13)228 Chapt

8. Remove two screws (3) and remove the swing rod/lock guide (4), shown in the abovefigure.Reinstallation tipWhen reassembling the swing rod guide, th

9. Disconnect one connector (1), remove two screws (2), remove the clutch plate (3), andremove the clutch (4).Reinstallation tipWhen reinstalling the

12. Remove six screws (4) and remove the main gear plate (5).Figure 6-34.Pick-up/feed assembly removal (6 of 13)Reinstallation tipIf the gears come of

14. Remove two screws (2) and lay the solenoid cover plate (3) down (it will still beconnected to the solenoid).Reinstallation tipThe solenoid plate h

18. Unhook one claw (2) and pull the Tray 2 pick-up gear (3) off the shaft.Reinstallation tipWhen installing this gear (3) it may be necessary to hold

22. Push the right swing guide (1) all the way back.23. Unhook two claws (2) and remove the connector cover (3). (It may be easier to unhookthe upper

26. Disconnect three connectors (1).27. Remove eight screws (2) and un-route the cable (3).28. For the HP Color LaserJet 3500/3550 series printers, re

Media weight ...29Environmental prod

Main assembly partsThe following procedures describe removal of parts located on or around the major internalmechanical assemblies.Figure 6-43.Main as

Tray 1 pick-up roller removal1. Remove the transfer unit. See Transfer unit removal.2. Unhook one claw (1) and slide the idler roller (2) in the direc

Tray 2 pick-up roller removal1. Remove Tray 2.2. Push the roller (1) in the direction of the arrow, then remove it by pulling the right sideout (2) fi

Secondary transfer charging roller removal1. Remove the transfer unit and the print cartridges. See Transfer unit removal and Printcartridge removal.C

Feed guide unit removal1. Release the right and left rod brackets from the front door. See Pick-up/feed assemblyremoval removal procedure, steps 1 thr

6. Push both swing guides all the way back (1), remove four screws (2), and remove thefeed guide (3).Figure 6-50.Feed guide removal (2 of 2)Reinstalla

Swing guide removal, right1. Open the front door and remove the transfer unit and the print cartridges. See Transferunit removal and Print cartridge r

6. Push the swing guide (1) in as far as it will go.Figure 6-55.Right swing guide removal (3 of 4)7. Remove one spring (1) and then pull the developin

9. Pull the swing guide (1) toward you as far as it will go. Then move it slightly to the left(this allows it to be pulled forward a little more), and

Swing guide removal, left1. Remove the high-voltage power supply PCB. See High-voltage power supply PCBremoval.2. Remove the cables (1) from the cable

Printer configurationsHP Color LaserJet 3500/3550 printerFigure 1-1.HP Color LaserJet 3500/3550 printerThe HP Color LaserJet 3500 printer is a four-co

4. Remove three screws (1) and swing the cable harness (2) to the right. The cableharness does not need to be completely removed to remove the transfe

6. Remove two screws (1) and remove the left swing rod arm (2).Figure 6-62.Left swing guide removal (4 of 6)7. Push the left swing guide (1) in, as fa

8. Remove one spring (1) and remove the developing (drum) lock arm (2).Figure 6-64.Left swing guide removal (6 of 6)9. Remove the white left swing gui

11. Remove the swing guide by pulling it to the right, being careful not to force it. The guidemust be positioned all the way forward to release the c

SwitchesFigure 6-66.Switch locationsSW1 Door switchSW1001Test print switchSW3001Power switchDoor Switch (SW1) removal1. Refer to the left swing guide

Test print switch (SW1001) removalReplacing the test print switch requires the replacement of the DC controller PCB. See DCcontroller PCB removal.Powe

SensorsFigure 6-68.Sensor locationsPS1 Tray 1 (multipurpose) paper sensorPS2 Tray 2 (cassette) paper sensorPS4 Registration paper sensorPS5 Media se

Tray 1 (multipurpose tray) paper sensor (PS1) removalReplacement of the Tray 1 paper sensor requires replacement of the entire pick-up/feedassembly. S

5. Unhook two claws (1) and pull the paper sensor (2) out, disconnecting the connector (3)once the sensor is pulled away from the assembly.Figure 6-71

3. Unhook two claws (1), disconnect one connector (2), and remove the registration papersensor (3) from the sensor holder.Figure 6-73.Registration pap

HP Color LaserJet 3700 printerFigure 1-3.HP Color LaserJet 3700 printerThe HP Color LaserJet 3700 printer is a four-color laser printer that prints 16

Fuser front paper sensor (PS6) removal1. Remove the feed guide unit. See Feed guide unit removal.2. Disconnect one connector (1), unhook two claws (2)

4. Disconnect one connector (1), unhook two claws (2), and remove the fuser deliverypaper sensor (3).Figure 6-77.Fuser delivery paper sensor removal (

3. Loosen the right printer Tray 2 guide. See Cassette (Tray 2) guide, right, removal(HP 3500/3550).Figure 6-79.Reversed paper sensor removal (1 of 2)

3. Unhook two claws from the back and remove the sensor (4).Figure 6-81.Duplex feed delivery paper sensor removalRear output bin paper sensor (PS11) r

Color misregistration sensor (PS12) removalNOTEWhen the color misregistration sensor is replaced, in addition to replacing the sensor, aconfiguration

3. Remove one screw (2) and remove the waste toner level sensor (3).Figure 6-84.Waste toner level sensor removalDeveloping engaging sensor (PS14) remo

2. Remove one (1) screw and remove the sensor (2). Disconnect the connector (3) whileremoving the sensor.Figure 6-86.Environmental sensor removalSecon

Solenoids and ClutchesFigure 6-88.Solenoid and clutch locationsSL1 Tray 1 pick-up solenoidSL2 Tray 2 pick-up solenoid (pick-up/feed assembly)SL3 Tray

2. Remove one screw (1), disconnect one connector (2), and remove the Tray 1 pick-upsolenoid (3).Figure 6-89.Tray 1 pick-up solenoid removalTray 2 pic

4. Remove one screw (1) and remove the solenoid (2).Figure 6-91.Tray 2 pick-up solenoid removal (2 of 2)Secondary transfer roller engaging solenoid (S

HP Color LaserJet 3700dn printerFigure 1-5.HP Color LaserJet 3700dn printerThe HP Color LaserJet 3700dn printer includes the features of the HP Color

3. Disconnect one connector (1), remove one screw (2), and remove the secondarytransfer roller engaging solenoid (3).Figure 6-93.Secondary transfer ro

2. Disconnect one connector (1), remove two screws (2), and remove the plate (3).Figure 6-95.Registration clutch removal (1 of 2)3. Remove the bushing

2. Disconnect one connector (1), remove the e-clip (2), and remove the black developmentclutch (3).Figure 6-97.Black development clutch removal (2 of

Motor and fansFigure 6-99.Motor and fan locationsM1 Feed motorM2 Delivery motorM3 Drum motorM4 Developing motorM5 Primary transfer roller engaging mot

3. Press down on the motor cover claw (1) and lift up on the cover (2) to remove it. Ifpossible, release the cover claw (1) from the other side of the

5. Remove two screws (1) and remove the feed motor (2).Figure 6-102.Feed motor removal (3 of 3)Delivery motor (M2) removal1. Remove the right cover. S

2. Remove five screws (1), remove the gear plate (2), and remove two gears (3).Figure 6-104.Drum motor removal (1 of 3)3. Remove the face-down deliver

6. Remove four screws (1) and remove the drum motor (see callout (4) in the previousfigure).Figure 6-106.Drum motor removal (3 of 3)Developing motor (

5. Remove four screws (1).Figure 6-108.Developing motor removal (2 of 3)6. Disconnect one connector (1) and remove the developing motor (2).Figure 6-1

3. Refer to the pick-up/feed guide assembly removal procedure, steps 1 through 12, andremove the right side gear plate. See Pick-up/feed assembly remo

HP Color LaserJet 3500/3550 and 3700series printersService Manual

Printer featuresTable 1-1. FeaturesFeature HP Color LaserJet 3500/3550series printerHP Color LaserJet 3700series printerPerformance ● 12 ppm (in bothm

7. Remove the motor cover (4) by pressing down on the tab (5) while pulling the coverslightly to the left and up, then pull it and out to remove it.Fi

9. Disconnect one connector (1) and lift the primary transfer roller engaging motor (2) upslightly, and then pull it to the left to remove it.Figure 6

Circuit BoardsFigure 6-115.Circuit board locations1 DC controller PCB2 Memory controller PCB3 High-voltage power supply PCBs4 Low-voltage power supply

3. Remove four screws (1) and remove the PCB (2).Figure 6-116.DC controller PCB removalFormatter PCB removalThe HP Color LaserJet 3500/3550 series pri

a. Disconnect two connectors (1), remove five screws (2), and remove the formatterenclosure cover (3).Figure 6-117.Formatter PCB (HP 3500/3550) remova

d. Disconnect one connector (1), remove two screws (2), and remove the formattercover (3).Figure 6-119.Formatter PCB (HP 3700) removal (1 of 2)3. Disc

5. Disconnect two cables (1). (The formatter cage removal for the HP Color LaserJet3500/3550 and 3700 series printers is slightly different. (Refer to

8. Remove the formatter cage (3) (while removing the cage for the HP 3500/3550, releasethe cable tie (4).Figure 6-123.High-voltage power supply PCB re

11. Remove four screws (2) and remove the DC controller PCB/plate (3) from the printer.While removing the controller PCB/plate, remove the cables from

Low-voltage power supply PCB removal1. Remove the formatter. See Formatter PCB removal.2. Remove two screws (1).3. Pull the low-voltage power supply P

Feature HP Color LaserJet 3500/3550series printerHP Color LaserJet 3700series printerFonts ● Not applicable. ● 80 internal fonts availablefor both PCL

4. Disconnect four connectors (1) and remove the power supply (2).Figure 6-129.Low voltage power supply PCB removal (2 of 2)Memory controller PCB remo

4. Release one claw (1) at the top of the PCB (2) and swing the right side of the PCB out(3). Then pull it to the right to free it from the retainer t

Miscellaneous partsThis section describes replacement for those parts not described in other sections.Swing rod guide, left removal1. Remove the left

2. Remove three springs (1) from inside, located under the left swing guide. (The left swingguide is not shown for illustration purposes only.) Remove

5. Pull out on the top of the assembly while pressing in on two tabs (2). Once the top isreleased, pull up slightly and outward to remove the developi

Tray 2 (cassette) parts removalThe following section describes the removal procedures for Tray 2 and associated parts,including the right guide in the

8. Remove eight screws (1) from the printer's bottom plate (2) and remove the plate.Figure 6-137.Right Tray 2 guide removal (2 of 6)9. Release th

10. Lower the duplex guide pan (1) until it is perpendicular with the base of the printer andpull it straight out (2) to remove it.Reinstallation tipE

12. Remove two screws (1) and remove the tray guide (2).Figure 6-141.Right tray guide removal (6 of 6)Cassette (Tray 2) guide, right, removal (HP 3500

4. Remove eight screws (1) from the bottom plate (2) and remove the plate.Figure 6-143.Right Tray 2 guide removal (2 of 3)5. Remove two screws (1) fro

Feature HP Color LaserJet 3500/3550series printerHP Color LaserJet 3700series printerConnectivity ● High-speed universalserial bus (USB) 2.0 cableinte

500-Sheet paper feeder (Tray 3) coversThis section describes the removal and replacement procedures for the 500-sheet paperfeeder covers.Figure 6-145.

Right cover removal - 500-sheet paper feeder1. Remove Tray 3.2. Lift up to release two pins (1) and pull the top edge of the cover (2) in the directio

500-Sheet paper feeder internal parts1 500-Sheet paper feeder pick-up roller2 500-Sheet paper feeder pick-up drive unit3 500-Sheet paper feeder separa

Separation pad removal - 500-sheet paper feeder1. Remove Tray 3.2. Push the lifting plate (1) down.3. Unhook the two claws (2) and remove the separati

500-Sheet paper feeder sensor/solenoid/motor/PCBFigure 6-152.500-Sheet paper feeder sensor/solenoid/motor/PCB locations1 500-Sheet paper feeder PCB2 5

Pick-up clutch (CL4) removal - 500-sheet feeder1. Remove the right cover. See Right cover removal.2. Disconnect one connector (1) and one spring (2).3

Paper sensor (PS3) removal - 500-sheet feeder1. Remove Tray 3.2. Turn the 500-sheet paper feeder over.3. Remove two screws (1) and remove the lower fr

7TroubleshootingChapter contentsThis chapter contains the following sections:Chapter contents ...

Calibrating the printer ...383Using Color ...

Printing a menu map ...407Information menu ...

Printer assembliesFront and rear featuresThe two figures below show the location of each major assembly in the printer. Theseassemblies are described

IntroductionThis troubleshooting chapter assumes the reader has a basic understanding of the colorlaser printing process. Explanations of each mechani

Troubleshooting processWhen the printer malfunctions or encounters an unexpected situation, the printer controlpanel alerts you of the situation. This

Transfer unit and fuser ● Are the transfer unit and fuser properly installed?Covers ● Is the front door closed?Condensation ● Does condensation occur

A “no” answer indicates that additional testing is needed. Proceed to the referenced sectionin this chapter, and follow the instructions. After comple

NOTEIf the printer’s display is blank, but the power-on checks pass, try printing an engine testpage to determine whether the problem is with the engi

6. Make sure the control panel display is connected.7. Check the two fuses on the power supply.8. If necessary, replace the power supply.9. If necessa

Printer error troubleshootingThe following tables explain messages that might appear on the printer control panel.Alphabetical printer messages and th

Table 7-2. Alphabetical printer messagesMessage Description ActionAccess DeniedMENUS LOCKEDAn attempt has been made to modify amenu item while the con

Message Description ActionClearing paper path HP 3700 only.The printer detected jammed ormisplaced paper when turned on and isattempting to eject jamm

Message Description ActionFLASH FILESYSTEM IS FULLalternates withReadyTo clear pressHP 3700 only.The printer received a PJL file systemcommand that at

Figure 1-8.Rear view, HP Color LaserJet 3500/3550 and 3700 series printers (shown withadditional 500-sheet paper feeder)1 Upper rear door2 Parallel co

Message Description ActionINCORRECT <COLOR>CARTRIDGEalternates withFor help press A color cartridge is installed in anincorrect slot or the cart

Message Description ActionINSTALL FUSERFor help press The fuser is either not installed or notcorrectly installed in the printer, theconnector between

Message Description ActionLoadingprogram Xalternates withDO NOT POWER OFFHP 3700 only.Programs and fonts can be stored on theprinter file system and a

Message Description ActionNo job to cancel This message is displayed when theuser presses the Stop key but there isno active job or buffered data to c

Message Description ActionORDER FUSER KITalternates withLESS THAN X PAGESalternates withReadyFor help press The fuser is near end of life. The printer

Message Description ActionPrinting...DEMO PAGEThe printer is generating the demo page.The printer will return to the onlineReady state when the page i

Message Description ActionProcessing...INTERMITTENT MODEalternates withFor help press The printer has experienced a period ofheavy use. To maintain a

Message Description ActionReadyDiagnostics modealternates withTo exit press STOP keyThe printer is online and ready for data.No status or device atten

Message Description ActionREPLACE FUSER KITalternates withTo continue press The fuser is near end of life and theSUPPLIES LOW setting in SYSTEMSETUP i

Message Description ActionRequest acceptedplease waitThe printer has accepted a request toprint an internal page, but the current jobmust finish print

Site requirementsThe printer must be kept in a proper location to maintain the performance level that hasbeen set at the factory. In particular, be su

Message Description ActionTRAY X OPEN OR EMPTY The specified tray is open or is emptyand needs to be filled. If the tray is notopen or has paper insta

Message Description ActionUNAUTHORIZED SUPPLYIN USEalternates withReadyThe printer has detected that a non-HP supply is currently installed andpress

Table 7-3. Numerical printer messagesMessage Description Action10.XX.YY SUPPLYMEMORY ERRORalternates withFor help press NOTEThe printer cannot always

Message Description ActionFour color slippage bands occuracross the ITB belt because theright side cleaning blade shippingtab is out of position. This

Message Description ActionError occurs at power up and canbe caused by:● Cartridges not seated correctly.● Damaged cartridge shutter arm.● Broken ITB

Message Description Action1. Check if the left rail guide is in place. Ifit is not in place, replace it (partnumber: RC1-1642-000CN.2. If the left gui

Message Description Action13.90.00 JAM INSIDEFRONT DOORalternates withREMOVE INCOMPATIBLETRANSPARENCIESThere is a jam inside the front doorcaused by i

Message Description Action13.XX.YY JAM INTRAY Xalternates withFor help press Clear jam then press A page is jammed in tray X.Press for help.orSee Pa

Message Description Action40 EIO X BADTRANSMISSIONalternates withTo continue press HP 3700 only when an EIO deviceis installed.A connection with the c

Message Description Action41.XPRINTER ERRORalternates withTo continue press A printer error has occurred.X Description:2 - Beam detect misprint error.

Figure 1-10.Space requirements for the HP Color LaserJet 3700 series printer with optional Tray 31 Height: 862 mm (34 in.)2 Depth: 1480 mm (58.3 in.)3

Message Description Action41.7 error - occurs when a page is jammedin the paper path. See Paper pathtroubleshooting, later in this chapter. If theerro

Message Description Action49.XXXXPRINTER ERRORalternates withTo continueturn off then onA critical firmware error hasoccurred that caused the processo

Message Description Action50.X FUSER ERRORalternates withFor help press A fuser error has occurred.X Description1 - low fuser temperature2 - fuser war

Message Description Action50.X FUSER ERROR 50.3 error - Fuser Failure (Abnormally HighTemperature Main Thermistor)1. The connector between the fuser a

Message Description Action50.X FUSER ERRORcontinued 50.9 error - Fuser Failure (Abnormally HighTemperature Sub Thermistor)1. The connector between the

Message Description Action53.XY.ZZ CHECKDIMM A Bank Balternates withPress STOP to continueHP 3700 onlyAn error occurred in printer memory.Values of A

Message Description Action54.XX PRINTERERRORA printer command error hasoccurred.NOTESome messages are displayed inthe event log and some aredisplayed

Message Description Action54.XX PRINTERERROR continued33.0X Scanner Beam Detectadjustment abnormality warning X isthe scanner number:1 = yellow/magent

Message Description Action54.31 - Media Sensor Abnormality/ After-adjustment Value Out of Spec1. Try to calibrate the media sensor again.2. Dirty medi

Message Description Action55.XPRINTER ERRORalternates withTo continueturn off then onThe DC controller is notcommunicating with the formatter.The prob

ProductPrinting2Ready3Power Save4Off Heat output-Ready (BTU/hour)HP ColorLaserJet 3700400 25 25 0.25 85HP ColorLaserJet3700n400 26 26 0.25 89HP ColorL

Message Description Action59.XYcontinuedPRINTER ERRORalternates withTo continueturn off then onA printer motor error has occurred.X and Y are detailed

Message Description Action59.7Y Control Panel Message59.07.00 - (HP 3700 only; event log only)59.07.ZZ - (HP 3500/3550 only; event logonly)ZZ is color

Message Description Action59.XYcontinuedPRINTER ERRORalternates withTo continueturn off then on59.90 and 59.A0 Errors on control panel59.09.00 (event

Message Description Action59.C0 Error on control panelUnable to move the right swing guide armall the way back due to a missing "t". If anyo

Message Description Action62 NO SYSTEM No system was found. 1. Turn the printer off and then back on.2. HP 3700 only - reseat the firmwareDIMM. Make s

Message Description Action8X.YYYYEIO ERRORHP Color LaserJet 3700 seriesprinter only.The EIO accessory card in slot Xhas encountered a critical error.1

Replacement parts configurationWhen the parts in the list below are replaced, specific tasks need to be performed. Theseparts include:● Formatter and

Formatter (previously installed in another printer)replacement configuration When the formatter PCB is being replaced with one that was installed in a

DC Controller (previously installed in another printer)replacement configuration To ensure optimum print quality, the printer needs to be calibrated

Color Misregistration Sensor (PS12) replacementconfiguration To ensure optimum print quality, the printer will need to be calibrated by performing 3Ca

Severe (maximum of 18 days)Severe (maximum of 18 days)High: 35° to 40° C (95° to 104°F)Low: 0° to -20° C (32° to -4° F)Maximum temperature changera

Paper path troubleshooting Jam error messages occur if paper fails to arrive at or clear the paper path sensors in theallowed time. Dedicated paper se

Paper path jam areasJams occur in the areas shown in the figure below. Jam messages on the control panelcorrelate with these areas. For instructions o

Table 7-4. Error messages and associated jam locationsError message Event logcodeAction Location/ActionGo to jamLocationareas:13.01.00 (HP 3500/3550)1

Error message Event logcodeAction Location/ActionGo to jamLocationareas:13.0A.00 (HP 3500/3550)13.20.00 (HP 3700)Delivery stationary jam13.0A.00 When

Error message Event logcodeAction Location/ActionGo to jamLocationareas:Note: Residual paper jam n/a If paper is detected by sensorsother than PS6 and

Cause SolutionDefective feed motor Replace the feed motor.Defective DC controller PCB. Replace the DC controller PCB.Area 2: Tray 2 jam troubleshootin

Cause SolutionDefective paper feeder pickup solenoid. Disconnect the paper feeder pickup solenoid connectorJ4002 from the paper feeder. PCB. Measure t

1. Open the front door.CAUTIONDo not place anything on the transfer unit. Do not touch the top of the transfer unit or thecontacts on the left side of

1. Lift the latch (1) on the printer front door and open the door (2).Figure 7-2.Printer front doorCAUTIONDo not place anything on the surface of the

3. Remove the yellow and magenta cartridges (1) from the printer by grabbing the bluehandle (2) on the cartridge and pulling it upward and out.4. Clos

Printer specificationsTable 1-6. Physical dimensionsProduct Height Depth Width WeightHP ColorLaserJet3500/3550 serieswith printcartridges467 mm(18.4 i

6. Locate the top flat bar (1) and pull up on the white tab marked with black dots (2) to raisethe bar to a vertical position (3). The bar will remain

8. While holding the media sensor bar upright, remove any visible pieces of paper (1).9. When the paper is removed, lower the bottom media sensor bar

To diagnose the cause of wrinkled or folded paper, use the Print/Stop Test in theDiagnostics test menu. Adjust the stop time so the paper stops before

Area 5: Duplex jam troubleshootingTable 7-13. Causes for jams in the duplex area (HP 3700 (only)Cause SolutionScratched/Dented duplex feed guide. If d

3. On the left side of the tray opening, pull the green lever straight forward until the metalpaper-access plate (duplex pan) drops.4. Remove any jamm

Cause SolutionDefective face down delivery sensor lever. Reseat the face-down delivery sensor lever if it does notmove smoothly or it is out of positi

2. Open the upper rear door.3. Remove any paper.4. Close the rear door.5. If no paper is visible, open the lower rear door (rear output bin).372 Chapt

6. Press down on the green levers and remove any paper. Return the green levers to theup position after removing the page.7. Close the lower rear door

3. If the paper is not visible, turn the printer off.4. Slide out the lower rear door (rear output bin) tray extender.5. Remove the lower rear door (r

7. Pull the fuser out of the printer.8. On the fuser, squeeze and lift the black tabs to open the shutter door.WARNING!Do not open the fuser shutter d

© 2004 Copyright Hewlett-PackardDevelopment Company, L.P.Reproduction, adaptation or translationwithout prior written permission isprohibited, except

Print media specificationsFor optimum results, use conventional 75 g/m2 to 90 g/m2 (20 to 24 lb) photocopy paper.Verify that the paper is of good qual

11. Press the black ridges on the front of the fuser until the fuser clicks into place.12. To reattach the lower rear door (rear output bin), hold the

2. Press down on the green levers and remove any paper.3. Lift the green levers and close the lower rear door.4. If printing does not resume, press .P

Table 7-15. Common causes of paper jamsIssue Cause SolutionCommon causesof paper jamsPaper does not meet HP-recommended paperspecifications.Use only p

General paper path troubleshooting Use the following suggestions to isolate the cause of the problem. Once you have identifiedthe cause, use the tabl

Persistent jams If jams occur repeatedly, use the information in this section to diagnose the root cause of theproblem. The tables in this section lis

Image formation troubleshooting The section identifies some things that can result in poor print quality. For additionalinformation, refer to the HP

NOTEIf the printer’s media sensor rejects a supported Color LaserJet transparency, make sure thetransparencies are not from an old box. Try transparen

Print quality troubleshooting pagesUse the built-in print quality troubleshooting pages to help diagnose and solve print qualityproblems.1. Press MENU

Using Color The HP Color LaserJet 3500/3550 series printer and the HP Color LaserJet 3700 seriesprinter offer great color printing as soon as you set

NOTEFactors such as the type of monitor you use and the room’s lighting can affect theappearance of colors on your screen. For more information, see M

Table 1-9. Tray 2 paper sizes1Media Dimensions Weight or thickness CapacityLetter 216 by 279 mm(8.5 by 11 in)60 to 105 g/m2(16 to 28 lb bond)250 sheet

Managing colorSetting color options to Automatic will typically produce the best possible print quality forcolor documents. However, there may be case

The Neutral Grays setting determines the method used for creating gray colors used in text,graphics, and photographs.For the HP Color LaserJet 3700 se

Matching colorsThe process of matching printer output color to your computer screen is quite complexbecause printers and computer monitors use differe

Adjusting color balanceThis printer features automatic color calibration to provide high-quality color output. Insituations that require critical colo

Image defectsIf specific defects occur repeatedly, print a Print Quality Troubleshooting page (see Printquality troubleshooting pages, in this chapter

Image defect Description More informationBlank spots Blank spots appear in image. See Table 7-31. Causes forblank spotsPoor fusing Toner image is not

Light colorPrint out a solid filled image of the problem (light) color using an external device. In thecourse of printing, turn the printer off and ta

Cause SolutionDirty color misregistration sensor lens. Clean the color misregistration sensor lens.Defective color misregistration sensor. Replace the

Cause SolutionDefective cartridge (primary charging roller). Replace the problem (solid) color’s cartridge.High-voltage PCB is defective. Replace the

Table 7-25. Causes for dirt on the front of the paperCause SolutionA Defective cartridge (deteriorated toner orscratches on the developing cylinder,ph

Manual two-sided printing. Any of the supported paper sizes and types listed for printingfrom Tray 1 can be manually duplexed. See the two-sided (dupl

Horizontal lineIf the line appears in a particular color, go to step A. If it appears in full-color print, go to stepB.Table 7-28. Causes for horizont

Color missing Table 7-30. Causes for a missing colorCause SolutionDefective laser shutter. Check the problem color laser shutter. Clean theshutter if

Cause SolutionFuser is not within nip width specifications. Refer to the Table 7-39. Repetitive defect cause,later in this chapter, to find out if the

Cause SolutionA Defective cartridge. Check if the photosensitive drum in the problem(misregistered) color’s cartridge rotates smoothly.If not, replace

Cause SolutionDC controller PCB is defective. Replace the DC controller PCB. Calibrate theprinter after replacing the DC controller. SeeCalibrate Now,

Repetitive defects troubleshooting Defects on printer rollers can cause image defects to appear at regular intervals on thepage. Use the repetitive de

NOTEA problem that appears only at the leading edge of image with no repetition.Figure 7-4.Repetitive defects rulerNOTERepetitive defects for the tran

Interface troubleshootingThis section contains information about printer communication troubleshooting.Communications checksNOTECommunication problems

CAUTIONHP LaserJet printers are not designed to work with mechanical switch-box products withoutproper surge protection. These devices generate high t

@PJL [Enter] LANGUAGE = {PCL/PostScript} [<CR>] <LF>UEL (universal exit language)This command (also referred to as the universal exit lang

Hewlett-Packard warranty statementHP PRODUCTHP Color LaserJet 3500, 3500n, 3550, 3550n, 3700,3700n, 3700dn, and 3700dtn printersDURATION OF LIMITED WA

@PJL JOBThis command informs the printer of the start of a PJL job and synchronizes the job statusinformation. The printer counts print jobs, includin

Control panel troubleshooting When you press to enter the menus, the high-level menus are displayed in the followingorder:● INFORMATION● PAPER HANDL

Table 7-41. Information menuMenu item DescriptionPRINT MENU MAP Prints the control panel menu map, which shows the layout andcurrent settings of the c

Menu item Value DescriptionTRAY 1 TYPE A list of availabletypes appears.Allows you to configure themedia type for Tray 1. Thedefault value is ANY SIZE

Menu item Values DescriptionDUPLEX OFFONHP 3700dn and 3700dtn onlyAllows you to enable ordisable the duplex function(automatic 2-sided printing).The d

Menu item Values DescriptionPCL FORMLENGTHORIENTATIONFONTSOURCEFONTNUMBERFONT PITCHSYMBOL SETAPPEND CRTO LFSUPPRESSBLANKPAGESAllows you to configurese

Table 7-44. Print quality menuMenu item Values DescriptionADJUST COLOR CYAN DENSITYMAGENTA DENSITYYELLOW DENSITYBLACK DENSITYRESTORE COLORVALUESAllows

Menu item Values DescriptionOPTIMIZE T1 UPT1 DOWNT2 UP 1T2 UP 2T2 DOWN 1T2 DOWN 2LEADING EDGE UPLEADING EDGEDOWNREDUCEBKGROUND 1REDUCEBKGROUND 2FUSER

Menu item Values DescriptionOPTIMIZEcontinued FILM OFFSET - Use whenfuser electrostatic offsetoccurs (like fuser hot offsetbut is caused by anelectros

Table 7-45. System setup submenuMenu item Values DescriptionSHOW ADDRESS AUTOOFFAUTO allows theprinter's IP addressto be shown on theprinter cont

HP's Premium Protection Print Cartridge Warranty LimitedWarranty Statement This HP Print Cartridge is warranted to be free from defects in materi

Menu item Values DescriptionTRAY BEHAVIOR USEREQUESTEDTRAYMANUALLYFEEDPROMPTPS DEFERMEDIAAllows you to specifysettings for the trayselection behavior.

Menu item Values DescriptionCLEARABLE WARNINGS ONJOBAllows you to set theamount of time that aclearable warning isdisplayed on theprinter control pane

Menu item Values DescriptionRAM DISK AUTOOFFDetermines how theRAM disk feature isconfigured. AUTOallows the printer todetermine theoptimal RAM disksiz

Menu item Values DescriptionEIO 1 Possiblevalues are:TCP/IPIPX/SPXAPPLETALKDLC/LLCSECURE WEBRESETSECURITYLINK SPEEDHP 3700 onlyAllows you to configure

Menu item DescriptionSHOW EVENT LOG Displays the last 50 events on the control panel display,starting with the most recent.PQ TROUBLESHOOTING Prints a

Menu item Values DescriptionTOTAL COLOR PAGES Range: 0 -9999999Allows you to reset the page count afterreplacing the formatter. The page countshould r

Tools for troubleshootingThis section contains information about the Printer's embedded Web server.Embedded Web server (HP Color LaserJet 3700 se

Information tab The Information pages group consists of the following pages.● Device Status. This page displays the printer status and shows the life

Networking tab This tab allows the network administrator to control network-related settings for the printerwhen it is connected to an IP-based networ

For Windows● Microsoft Internet Explorer 5.2 or later● Netscape Navigator 6 or later● Opera Software ASA Opera™For Macintosh● Microsoft Internet Explo

Premium Protection Warranty Color LaserJet Image Fuser Kit andImage Transfer Kit Limited Warranty StatementThis HP product is warranted to be free fro

Alerts tab● The Alerts tab allows you to configure the printer to automatically notify you of printeralerts. The Alerts tab has links to the following

Advanced Printer Settings windowWhen you click the Advanced Printer Settings link, a new window opens. The AdvancedPrinter Settings window has the fol

Printer configuration page Use the configuration page to view current printer settings, to help troubleshoot printerproblems, or to verify installatio

Figure 7-8.EIO page1 HP JetDirect configuration2 Security settings3 Network statistics4 TCP/IP settings5 IPX/SPX settings6 Novell/Netware settings7 Ap

NOTEIf you are using non-HP supplies, the supplies status page will not show the remaining lifefor those supplies.Figure 7-9.Supplies status page1 Bla

The message PRINTING... USAGE appears on the display until the printer finishes printingthe usage page. The printer returns to the Ready state after p

The message PRINTING... EVENT LOG appears on the display until the printer finishesprinting the event log. The printer returns to the Ready state afte

Diagnostics Additional diagnostic information is provided in this section.Diagnostics flowchartUse this flowchart to help identify the cause of high-l

Figure 7-13.Formatter LEDEngine diagnostics This section provides an overview of the engine diagnostics incorporated into the HP ColorLaserJet 3500/35

When the printer is in the special diagnostics mode, the four tests listed above appear in themenu and are available to be run. To access other diagno

IdentificationHP's Product Stewardship program monitors product design to help protect the environment.Model and serial numbersThe model number a

Diagnostics from the Control PanelThis section provides information about performing the printer diagnostics.Printer display menuControl Panel Fuel Ga

NOTEThe reversed paper sensor (PS9) and duplexing feed delivery paper sensor (PS10) are forthe HP Color LaserJet 3700 series printer onlyFigure 7-14.L

Table 7-50. Paper path and manual sensor test control panel informationName Symbol PAPER PATHSENSORSMANUALSENSORTESTA HP 3700 onlyReversed paper senso

O: only toggle this switch by opening and closing the front door. Do not toggle this switchwith the door open using a screw driver. You can damage the

Menus cannot be accessed during component tests, so the button serves the same functionas the STOP button. There are 18 component tests.Figure 7-15.Lo

Figure 7-16.Location of solenoids and clutchesSL1 Tray 1 pick-up solenoidSL2 Tray 2 pick-up solenoid (pick-up/feed assembly)SL4 Secondary transfer rol

8. ALIENATION MOTORDrives the delivery motor (M2) and the developing engaging clutch (CL3) which rotatesthe rear output paper path rollers and engages

After the print job completes, press STOP to return to the diagnostic menu before the timertimes out.After the timer times out, press STOP. You will h

Set Registration Allows 1 sided and 2 sided image alignment.Create Cleaning Page used to generate a cleaning page to clean spots off the fuser rollers

Test pagesPrinting test pages helps you determine whether the printer engine and the formatter arefunctioning.Engine test page To verify that the prin

CAUTIONConverting the voltage on the printer can damage the printer. Do not use any voltage otherthan the operating voltage. Any attempt to convert op

Engine resetsThis section provides information about the printer's cold reset and the NVRAM initialization.Cold reset A cold reset unlocks menus

Calibration bypass During certain diagnostic procedures, you will need to bypass the automatic calibration thatis performed whenever the printer is tu

Service menuThis section provides information about accessing the service menu and its operation.Accessing the Service menuThe Service menu is PIN pro

Service IDThis item allows the date that the printer was first used to be shown through the controlpanel, eliminating the need for customers to keep p

DiagramsThis section contains printer diagrams for locating parts for troublshooting.450 Chapter 7 Troubleshooting ENWW

Main partsBkCMYFigure 7-18.Location of main parts1 Face-down delivery roller2 Laser/scanner assembly3 Print (toner) cartridge4 Photosensitive drum5 Pr

Switches Figure 7-19.Location of switchesSW1 Door switchSW1001Test print switchSW3001Power switch452 Chapter 7 Troubleshooting ENWW

SensorsFigure 7-20.Location of sensorsPS1 Tray 1 paper sensorPS2 Cassette paper sensorPS4 Registration paper sensorPS5 Media sensorPS6 Fuser front pap

Solenoids and clutches Figure 7-21.Location of solenoids and clutchesSL1 Tray 1 pick-up solenoidSL2 Tray 2 pick-up solenoid (pick-up/feed assembly)SL4

Motors and fans Figure 7-22.Location of motors and fansM1 Feed motorM2 Delivery motorM3 Drum motorM4 Developing motorM5 Primary transfer roller engagi

Selecting paperYou can use many types of paper and other print media with this printer. This sectionprovides guidelines and specifications for selecti

PCBsFigure 7-23.PCB locations1 DC controller PCB2 Memory controller PCB3 High-voltage power supply PCBs4 Low-voltage power supply PCB5 Formatter PCB6

J1025J1022J1015J1023J1005J1024J1027J1026J1031SW1001J1028J1001J1002J1004 J1003J1008J1009J1011J1006J1010CP1015J1028J1014J1016J1012J1019J1013Figure 7-24.

Connector locations J1022J5027J5017J5008J5011J5025J5024J709J5001BJ5001AJ505AJ505BJ5020J1005J1013J1012J1015J1006J716J704J702J701J5028J5010J5009J9002J35

J1014J710J706J5005J5003J5029J1010J1009J1024J201J1025J1015J708J1008J1023J1031J707J711J3002J5013J5026J601J1002J714J5002J5014J1019J901Figure 7-27.Connect

J1022J5027J5017J5008J5024J5001BJ5001AJ505AJ505BJ5020J1005J1012J1015J5004J5007J1006J716J704J702J701J5028J5010J5009J9002J3503J1001J1011J1003J1004J101BJ1

J1014J706J5005J5003J5029J1010J1009J1024J201J1025J1015J708J1008J1023J1031J707J711J3002J5013J5026J601J1002J714J5002J5014J1019J901Figure 7-29.Connector l

500-sheet paper feeder connectorsJ4001J4004J4003J4002J5012LAJ5012LBJ703Figure 7-30.Connector locations for the 500-sheet paper feeder462 Chapter 7 Tro

General circuit diagramThe circuit diagram for the printer is provided in the following two figures. In addition, the 500-sheet feeder is also provide

Figure 7-32.General circuit diagram (2 of 2)464 Chapter 7 Troubleshooting ENWW

8Parts and diagramsChapter contentsThis chapter contains the following sections.Chapter contents ...

● Do not use paper that is embossed or coated, and that is not designed for thetemperatures of the HP Color LaserJet 3500/3550 and 3700 series printer

IntroductionThe figures in this chapter show the major subassemblies in the printer and their componentparts. A table (materials list) follows each ex

Ordering partsAll standard part numbers are stocked and can be ordered from Hewlett-Packard CustomerSupport-Americas (HPCS-A) or Hewlett-Packard Custo

Part ProductnumberPart number DescriptionAccessories Q2486A Q2486-67901 Optional 500-sheet paper feeder(Tray 3) Internal (EIO)connectivity for the HP

Part ProductnumberPart number DescriptionJ6035B HP Jetdirect 175x print server(fast Ethernet 10/100base Tx,USB 1.1)J6072A HP bt1300 Bluetooth wireless

Part ProductnumberPart number DescriptionC6520A USB 2.0 printer cable (3-meter)Power cord 8120-6812 AC power cordPaper C2934A 50 sheets HP Color Laser

Part ProductnumberPart number DescriptionQ1321-67906 Dutch overlayQ1321-67907 Finnish overlayQ1321-67908 Norwegian overlayQ1321-67909 Portuguese overl

Part ProductnumberPart number DescriptionQ2682-67901 Yellow Print Cartridge-CLJ 3700Q2682-67901 Yellow Print Cartridge-CLJ 3700(Europe)Q2673-67901 Mag

Illustration Description Size Part number UseSCREW, TP XB4-7300-805CN Secures sensor PCB toplastic (environmental,toner full, colormisregistration, an

Formatter and DC Controller replaced at the same timeDo not replace both the formatter and the DC Controller at the same time. Replace oneat a time. I

In addition, the Total Mono Pages, Total Color Pages, Serial Number, Service ID, ColdReset Paper (if needed), and the Fuser Kit Count will need to be

ConventionsThis manual uses the following conventions:Color is used to emphasize items that are important to the material under discussion.Bold is use

Printing on special mediaUse these guidelines when printing on special types of media.TransparenciesWhen printing on transparencies, use the following

The Transfer Kit count is set when it is first placed in a printer by a back up value containedon the formatter. If using a DC Controller that was pre

If you replace the fuser for any reason before the control panel reads REPLACE FUSERKIT, for instance if the fuser is defective, you will need to rese

Illustrations and parts listsThe following illustrations and parts tables list the field replaceable units (FRUs) for thisprinter. At the end of this

Figure 8-2.Main parts (2 of 3)ENWW Illustrations and parts lists 479

Figure 8-3.Main parts (3 of 3) 500-sheet paper feederFigure 8-4.PCB locations (1 of 2)480 Chapter 8 Parts and diagrams ENWW

Table 8-3. PCB locationsRef Description Part number Qty1 DC controller PCB (HP3500)DC controller PCB (HP 3550)DC controller PCB (HP3700)RM1-0510-000CN

Figure 8-5.Paper Feeder PCB Assembly Location Diagram (2 of 2) R90 - 1482 Chapter 8 Parts and diagrams ENWW

Table 8-4. Paper feeder PCB Assembly Location diagramRef Description Part number Qty1 Paper feeder PCB RM1-0768-000 1ENWW Illustrations and parts list

Figure 8-6.External covers and panels484 Chapter 8 Parts and diagrams ENWW

Table 8-5. External covers and panelsRef Description Part number Qty1 FRONT ROD LEFT ASS'Y RM1-0443-000CN 12 FRONT ROD RIGHT ASS'Y rm1-0444-

EnvelopesNOTEEnvelopes can be printed only from Tray 1. Set the tray media size to the specific envelopesize.Adhere to the following guidelines to hel

Figure 8-7.Front door assembly486 Chapter 8 Parts and diagrams ENWW

Table 8-6. Front door assemblyRef Description Part number QtyFRONT DOOR ASSEMBLY RM1-0463-000CN 11 MULTI-PURPOSE TRAY ASS'Y RM1-0464-000CN 12 ROD

Figure 8-8.Internal components (1 of 4)488 Chapter 8 Parts and diagrams ENWW

Table 8-7. Internal components (1 of 4)Ref Description Part number Qty1 PLATE, JOINT, RIGHT RC1-1603-000CN 12 COVER, SCREW RC1-1605-000CN 13 HIGH-VOLT

Figure 8-9.Internal components (2 of 4)490 Chapter 8 Parts and diagrams ENWW

Table 8-8. Internal components (2 of 4)Ref Description Part number Qty1 GEAR, 31T/19T RC1-1284-000CN 12 GEAR, 54T/17T RC1-1300-000CN 13 GEAR, 79T RC1-

Ref Description Part number Qty34 SUPPORT, PICK-UP GEAR RL1-0217-000CN 135 RING, E XD9-0137-000CN 136 CABLE, CPR CONNECTING RM1-0482-000CN 137 CABLE,

ENWW Illustrations and parts lists 493

Figure 8-10.Internal components (3 of 4)494 Chapter 8 Parts and diagrams ENWW

Table 8-9. Internal components (3 of 4)Ref Description Part number Qty1 GUIDE, ROD, LEFT RC1-1156-000CN 12 SENSOR UNIT, HUMIDITY WP2-5156-000CN 13 SPR

Heavy paperWhen printing on heavy paper, use the following guidelines:●Any tray will print most heavy media that does not exceed 105 g/m2 (28 lb bond)

Figure 8-11.Internal components (4 of 4)496 Chapter 8 Parts and diagrams ENWW

Table 8-10. Internal components (4 of 4)Ref Description Part number Qty1 GUIDE, CABLE RC1-1181-000CN 12 GEAR, 86T/23T RC1-1213-000CN 13 PLATE, JOINT,

Figure 8-12.Center frame assembly498 Chapter 8 Parts and diagrams ENWW

Table 8-11. Center Frame AssemblyRef Description Part number Qty1 BUSHING RC1-1243-000CN 12 PHOTO-INTERRUPTER, TLP 1241 WG8-5362-000CN 13 CLAMP, CABLE

Figure 8-13.Main Right Side Plate Assembly / Motors500 Chapter 8 Parts and diagrams ENWW

Table 8-12. Main Right Side Plate Assembly / MotorsRef Description Part number Qty1 LEVER, SWING LOCK, RIGHT RC1-1148-000CN 12 SPRING, TENSION RC1-114

Ref Description Part number Qty33 PLATE RL1-0189-000CN 134 PIN, DOWEL XD9-0120-000CN 835 CONNECTOR, 16P VS1-6492-016CN 136 RING, E XD9-0136-000CN 337

ENWW Illustrations and parts lists 503

Figure 8-14.Main Left Side Plate Assembly504 Chapter 8 Parts and diagrams ENWW

Table 8-13. Main Left Side Plate AssemblyRef Description Part number Qty1 HOLDER, SENSOR RC1-1049-000CN 12 LENS RC1-1050-000CN 23 PLATE, CONTACT RC1-1

Recycled paperThis printer supports the use of recycled paper. Recycled paper must meet the samespecifications as standard paper. See the HP LaserJet

Figure 8-15.Lower Frame Assembly - HP 3700 and HP 3500/3550 (1 of 2)506 Chapter 8 Parts and diagrams ENWW

ENWW Illustrations and parts lists 507

Figure 8-16.Lower Frame Assembly - HP 3700 and HP 3500/3550 (2 of 2)508 Chapter 8 Parts and diagrams ENWW

Ref Description Part number Qty1 CLUTCH, MECHANICAL RB2-6324-000CNN 12 HOLDER, SENSOR RC1-1496-000CN 13 LEVER, SENSOR RC1-1514-000CN 14 GUIDE, CABLE R

Figure 8-17.Image Drive Assembly510 Chapter 8 Parts and diagrams ENWW

Table 8-14. Image drive assemblyRef Description Part number QtyIMAGE DRIVE ASSEMBLY RM1-0415-040CN 11 CLUTCH, ELECTROMAGNETIC RK2-0248-000CN 1ENWW Ill

Figure 8-18.Developing Disengaging Assembly512 Chapter 8 Parts and diagrams ENWW

Table 8-15. Developing Disengaging AssemblyRef Description Part number QtyDEVELOPING DISENGAGING ASSEMBLY RM1-0434-000CN 11 CLUTCH, ELECTROMAGNETIC RK

Figure 8-19.Tray 2 (cassette)514 Chapter 8 Parts and diagrams ENWW

Table 8-16. Tray 2 (cassette)Ref Description Part number QtyTRAY 2 (CASSETTE) RM1-0470-000CN 11 PLATE, END RB2-3003-040CN 12 SPRING, COMPRESSION RS6-2

65# 165# 90# 111# 135# 150# 244 g/m266# 169# 92# 114# 138# 154# 250 g/m267# 171# 94# 115# 140# 155# 253 g/m270# 178# 98# 120# 146# 162# 264 g/m272# 18

Figure 8-20.Pick-up/Feed assembly (1 of 2)516 Chapter 8 Parts and diagrams ENWW

ENWW Illustrations and parts lists 517

Figure 8-21.Pick-up/Feed assembly (2 of 2)518 Chapter 8 Parts and diagrams ENWW

Table 8-17. Pick-up/Feed assemblyRef Description Part number QtyPICK-UP/FEED ASS'Y (HP3700) RM1-0449-000CN 1PICK-UP/FEED ASS'Y (HP3500/3550)

Figure 8-22.Tray 2 (cassette) pick-up assembly520 Chapter 8 Parts and diagrams ENWW

Table 8-18. Tray 2 (cassette) pick-up assemblyRef Description Part number Qty1 PHOTO-INTERRUPTER, TLP1241 WG8-5362-000CN 1ENWW Illustrations and parts

Figure 8-23.Face-down delivery assembly522 Chapter 8 Parts and diagrams ENWW

Table 8-19. Face-down delivery assemblyRef Description Part number QtyFACE-DOWN DELIVERY ASSEMBLY RM1-0469-000CN 11 PHOTO-INTERRUPTER, TLP1241 WG8-536

Figure 8-24.Transfer Unit524 Chapter 8 Parts and diagrams ENWW

Table 8-20. Transfer unitRef Description Part number Qty1 TRANSFER UNIT Q3658-69001 1ENWW Illustrations and parts lists 525

Environmental product stewardship programEnvironmental protection for this product is described in this section.Protecting the environmentHewlett-Pack

Figure 8-25.Right Swing Frame Assembly526 Chapter 8 Parts and diagrams ENWW

Table 8-21. Right Swing Frame AssemblyRef Description Part number Qty1 RIGHT SWING FRAME ASS'Y RM1-0437-000CN 1ENWW Illustrations and parts lists

Figure 8-26.Left Swing Frame Assembly528 Chapter 8 Parts and diagrams ENWW

Table 8-22. Left swing frame assemblyRef Description Part number QtyLEFT SWING FRAME ASS'Y RM1-0439-000CN 1ENWW Illustrations and parts lists 529

Figure 8-27.Fuser530 Chapter 8 Parts and diagrams ENWW

Table 8-23. Fuser assemblyRef Description Part number QtyFUSER (110-127V) Q3655-69001 1FUSER (220-240V) Q3656-69001 1ENWW Illustrations and parts list

Figure 8-28.500-Sheet paper feeder main body532 Chapter 8 Parts and diagrams ENWW

Table 8-24. 500-Sheet paper feeder main bodyRef Description Part number Qty1 COVER, FRONT RC1-2178-000CN 12 COVER, REAR RC1-2179-000CN 13 COVER, LEFT

Figure 8-29.500-Sheet paper feeder paper pick-up drive assembly534 Chapter 8 Parts and diagrams ENWW

Table 8-25. 500-Sheet paper feeder paper pick-up drive assemblyRef Description Part number QtyPAPER PICK-UP DRIVE ASS'Y RM1-0701-000CN 11 SWING A

HP LaserJet printing suppliesIn many countries/regions, this product’s printing supplies (for example, print cartridges) canbe returned to HP through

Figure 8-30.500-Sheet paper feeder tray (Tray 3)536 Chapter 8 Parts and diagrams ENWW

Table 8-26. 500-Sheet paper feeder tray (Tray 3)Ref Description Part number QtyPAPER TRAY 3, 500-SHEET FEEDER RM1-0705-000CN 11 PLATE, END RB2-6469-00

Alphabetical parts listTable 8-27. Alphabetical parts listDescription Part number Table and pageARM, DRUM LOCK, LEFT RC1-1170-000CN Table 8-9 on page

Description Part number Table and pageCABLE, CPR CONNECTING RM1-0482-000CN Table 8-8 on page 492CABLE, DRAWER RM1-0769-000CN Table 8-24 on page533CABL

Description Part number Table and pageCLAMP, CABLE WT2-5841-000CN Table 8-9 on page 495CLAMP, CABLE WT2-0507-000CN Table 8-10 on page497CLAMP, CABLE W

Description Part number Table and pageCOVER, FRONT RC1-2178-000CN Table 8-24 on page533COVER, HINGE RC1-2296-000CN Table 8-5 on page 485COVER, JAM CLE

Description Part number Table and pageDEVELOPING MOTOR ASS'Y (M4) RM1-0737-000CN Table 8-12 on page501DRAWER CROSSMEMBER ASS'Y RM1-0440-000C

Description Part number Table and pageGEAR, 120T/17T RC1-1252-000CN Table 8-9 on page 495GEAR, 20T RC1-1493-000CN Table 8-8 on page 491GEAR, 25T RC1-1

Description Part number Table and pageGUIDE, CASSETTE, LEFT RC1-1491-000CN Table 8-13 on page509GUIDE, CASSETTE, RIGHT (HP3500) RC1-1492-000CN Table 8

Description Part number Table and pageLEVER, SWING LOCK, LEFT RC1-1647-000CN Table 8-13 on page505LEVER, SWING LOCK, RIGHT RC1-1148-000CN Table 8-12 o

Extended warrantyHP SupportPack provides coverage for the HP hardware product and all HP-suppliedinternal components. The hardware maintenance covers

Description Part number Table and pagePAD, SEPARATION RC1-0939-000 Table 8-17 on page519PAPER FEED ASS'Y RM1-0460-000CN Table 8-13 on page509PAPE

Description Part number Table and pagePLATE, CONTACT RC1-1151-000CN Table 8-13 on page505PLATE, CONTACT RC1-1152-000CN Table 8-13 on page505PLATE, CON

Description Part number Table and pageRAIL, SWING, LEFT REAR RC1-1641-000CN Table 8-13 on page505RAIL, SWING, RIGHT FRONT RC1-1661-000CN Table 8-7 on

Description Part number Table and pageSPRING, COMPRESSION RS6-2021-000CN Table 8-16 on page515SPRING, COMPRESSION RC1-2191-000CN Table 8-26 on page537

Description Part number Table and pageSTOPPER, ARM, RIGHT RC1-2339-000CN Table 8-12 on page501STOPPER, FRONT HINGE, LEFT RL1-0215-000CN Table 8-7 on p

Numerical parts listTable 8-28. Numerical parts listPart number Description Table and pageQ1319-69001 FORMATTER PCB (HP3500/3550) includes cage Table

Part number Description Table and pageRC1-1170-000CN ARM, DRUM LOCK, LEFT Table 8-9 on page 495RC1-1175-000CN ARM, INTERLOCK SWITCH Table 8-7 on page

Part number Description Table and pageRC1-1291-000CN GEAR, 104T/25T Table 8-8 on page 491RC1-1292-000CN SPRING, TENSION Table 8-8 on page 491RC1-1294-

Part number Description Table and pageRC1-1497-000CN GEAR, 25T Table 8-8 on page 491RC1-1500-000CN SHAFT, DRIVE Table 8-8 on page 491RC1-1508-000CN SP

Part number Description Table and pageRC1-1627-000CN STOPPER, ARM, LEFT Table 8-13 on page 505RC1-1628-000CN SPRING, TENSION Table 8-9 on page 495RC1-

Declaration of ConformitiesDeclaration of Conformityaccording to ISO/IEC Guide 22 and EN 45014Manufacturer’s Name: Hewlett-Packard CompanyManufacturer

Part number Description Table and pageRC1-2330-000CN PAD, CUSHION Table 8-13 on page 505RC1-2334-000CN GUIDE, CABLE Table 8-8 on page 491RC1-2339-000C

Part number Description Table and pageRL1-0193-000CN PLATE, PAPER FEEDER DRIVE Table 8-8 on page 491RL1-0203-000CN MOUNT, SOLENOID (HP3700) Table 8-13

Part number Description Table and pageRM1-0469-000CN FACE-DOWN DELIVERY ASSEMBLY Table 8-19 on page 523RM1-0470-000CN TRAY 2 (CASSETTE) Table 8-16 on

Part number Description Table and pageRM1-0731-000CN CASSETTE PICK-UP ROLLER ASS'Y Table 8-24 on page 533RM1-0733-000CN DRUM MOTOR ASS'Y (M3

Part number Description Table and pageWT2-5841-000CN CLAMP, CABLE Table 8-9 on page 495WT2-5841-000CN CLAMP, CABLE Table 8-11 on page 499XD2-2100-602C

IndexSymbols/Numerics500-sheet feederpaper jams 361500-sheet paper feeder - see also, tray 3 296Aaccess denied 76accessoriescleaning 91ordering 43adju

commandsDOS 404PJL 404Commercial Service and Support OrganizationAmerica (CSSO-A) 43Europe (CSSO-E) 43compact disc, service parts information 44compon

developing disengagingassembly, part numbers 506, 508developing engaging drive assemblyremoval and replacement 225developing engaging drive clutch (CL

font DIMMsinstalling 79formatter PCBremoval and replacement 279replacement configuration 352, 474replacement configuration, previously installed353, 4

ITB(transfer) unit 164(transfer) unit, secondary 164replacing 99replacing before end of life 103see, transfer unit 218Jjam - see, paper jams 357KKorea

Declaration of Conformityaccording to ISO/IEC Guide 22 and EN 45014Manufacturer’s Name: Hewlett-Packard CompanyManufacturer's Address: 11311 Chin

modesduplex feed 194motordelivery (M2) 271developing (M4) 273drum (M3) 271exhaust fan (FAN1 277feed (M1) 269functions 121locations 455transfer roller

parts orderinginternet 43passwordssetting 76PCBcontrol panel 287DC controller 278formatter 279high-voltage power supply 281low-voltage power supply 28

printer componentsremoval and replacement 201printer coversremoval and replacement 209printer driversadditional 72ordering 45software 71printer featur

swing guide, left 245swing guide, right 242test print switch 251thermistor, main 239thermistor, sub 239thermoswitch 239transfer roller engaging motor

printer drivers 71UNIX 73utilities 73solenoidduplex feed (SL5) 266locations 454secondary transfer roller engaging solenoid (SL4)265special media, prin

tray 1 paper sensorremoval and replacement 253tray 1 pick-up rollerremoval and replacement 237tray 1 pick-up solenoidremoval and replacement 263tray 1

voltagepower consumption 12Wwarrantyextended 46fuser 21print cartridge 20statement 19transfer unit 21waste toner full detection 167waste toner level s

© 2004 Hewlett-Packard Development Company, L.P.www.hp.comQ5990-90939*Q5990-90939**Q5990-90939*

iv ENWW

Declaration of Conformityaccording to ISO/IEC Guide 22 and EN 45014Manufacturer’s Name: Hewlett-Packard CompanyManufacturer's Address: 8000 Footh

Safety statementsLaser safety statementThe Center for Devices and Radiological Health (CDRH) of the U.S. Food and DrugAdministration has implemented r

Laser statement for FinlandLuokan 1 laserlaiteKlass 1 Laser ApparatHP Color LaserJet 3550, 3550n, 3700, 3700n, 3700dn, 3700dtn, laserkirjoitin on käyt

FCC RegulationsThis equipment has been tested and found to comply with the limits for a Class B digitaldevice, pursuant to Part 15 of the FCC rules. T

40 Chapter 1 Printer description ENWW

2Service approachChapter contentsThis chapter contains the following sections.Chapter contents ...

Search approachPrinter repair normally begins by using the printer internal diagnostics and the three-stepprocess below.1. Isolate the problem to the

Parts and suppliesThis section identifies parts and supplies ordering information and how to obtain HPassistance.Ordering partsField-replaceable and a

Exchange programHP offers remanufactured assemblies for some parts. These are identified in chapter 8 andcan be ordered from Hewlett-Packard Customer

HP service agreementsCall (800) 743-8305 in the U.S. or (800) 268-1221 in Canada.Other areasOutside of North America and Europe, contact the local HP

Table of contents1 Printer descriptionChapter contents ...

HP maintenance agreementsHP has several types of maintenance agreements that meet a wide range of support needs.Maintenance agreements are not part of

3Installation and configurationChapter contentsThis chapter contains the following sections:Chapter contents ...

Checking the package contentsFigure 3-1.HP Color LaserJet 3500/3550 printer package contents1 HP Color LaserJet 3500/35502 USB cable3 Power cable4 Fou

NOTEThe items listed here are for the external print server connection.Figure 3-3.HP Color LaserJet 3700, 3700n, or 3700dn printer package contents1 H

Unpacking the printerNOTESave all the packing materials in case you need to repack and transport the printer at a laterdate.WARNING!The printer weighs

2. Lift the printer from the packing pallet and place it in the prepared location. Two peoplemust lift and move the printer.WARNING!Do not lift the pr

4. Remove all external orange tape, orange protectors, and other packaging material.5. Open Tray 2 and Tray 3 (if necessary), and remove the orange sh

6. Open the lower rear door, and make sure that the two blue pressure release leveractuators are in the upright position. The two release levers are l

9. Remove the orange tape and orange shipping locks on the rear, left, and right sides ofthe transfer unit. Remove any remaining tape from the printer

Installing the print cartridge1. Remove a new print cartridge from the bag.2. Grasp both sides of the print cartridge and distribute the toner by gent

Canadian DOC regulations ...37EMI statement (Korea) ...

4. Locate the color slot for the print cartridge.5. Align the print cartridge with the tracks inside the printer and, using the handle, insert thecart

Loading paper into Tray 3 (optional)1. Pull the tray out of the printer.2. Adjust the length guides.● Letter-size paper: Raise the blue rear stop.● A4

4. Load the paper into the tray. If this is special paper, such as letterhead, load it with theside to be printed down and the top edge toward the fro

Loading paper into Tray 21. Pull Tray 2 out of the printer.2. Move the side width guides until the blue arrows on the width guides point to the size o

4. Load the paper into the tray. If this is special paper, such as letterhead, load it with theside to be printed down and the top edge toward the fro

Loading paper into Tray 1 (optional procedure)1. Open Tray 1, and raise the output bin extension.NOTEIf printing special media, such as envelopes, use

Connecting power1. Connect the AC power cord to the printer and to a power outlet.NOTEDo not connect the printer to the computer or to the network at

Installing a new control panel overlay (optional)Overlays are available for several languages and come shipped with the printer. If you aresetting up

Testing the printer operationPrint a demo page to ensure the printer is working properly.1. Press MENU to enter the MENUS.2. Press to highlight Infor

Using PowerSave TimeThe adjustable PowerSave Time feature reduces power consumption when the printer hasbeen inactive for an extended period. You can

Installing memory and font DIMMs ...79Enabling memory ...

USB configurationAll printer models support USB connections. The USB port is on the back of the printer.Connecting the USB cablePlug the USB cable int

Parallel configuration (HP Color LaserJet 3700 series printer only)TheHP Color LaserJet 3700 printer supports network and parallel connections at the

Network configurationNOTEThe network configuration feature is available for the HP Color LaserJet 3700 series printerwhen an EIO device is installed.Y

Enhanced I/O (EIO) configuration (HP color LaserJet 3700 seriesprinter only)This printer comes equipped with one enhanced input/output (EIO) slot. Thi

NetWare networksWhen using Novell NetWare products with an HP Jetdirect print server, Queue Server modeprovides improved printing performance over Rem

Printer softwareIncluded with the printer is a CD-ROM containing the printing system software. The softwarecomponents and printer drivers on this CD-R

Table 3-2. Printer drivers for the HP Color LaserJet 3700 series printerOperating system1PCL 6 PS EmulationWindows 98, MeWindows NT 4.0NOTEWindows NT

HP Web JetadminHP Web Jetadmin allows you to manage HP Jetdirect-connected printers within your intranetusing a browser. HP Web Jetadmin is a browser-

HP ToolboxThe HP Toolbox is an application that you can use for the following tasks:● Check the printer status.● Configure the printer settings.● View

Other components and utilitiesSeveral software applications are available for Windows and Macintosh OS users, as well asfor network administrators. Th