HP B8C95AA Bedienungsanleitung PDF herunterladen (Seite 96)

System Error Codes

2-36 HP Designjet T Series — Service Manual

c The printer can reboot normally

d When the data is accessed again (typi

cally, under the same conditions

as in step “b”), the 79:04 system error is displayed again

Solutions and workarounds

Many times, data related 79:04 errors are resolved by means of hardware

inte

rvention. Since data is stored in physical components (RAM, EEROM

and Hard Disk), replacing these components with new ones which are

empty usually solves the problem. However, there are quicker and more

effective solutions to these types of errors:

1 C

lear all information that has been introduced by the user using the

tandard tools available in the printer:

a Delete all jobs from the queue (from the Front Panel or the EWS)

b Reset to factory defaults to clear the user’s configurations and calibrations

a Delete any non standard paper preset in the printer (both the ones that

ve been created by the user and the ones that have been installed as

OMES profiles through the EWS or the HP Printer Utility)

2 If s

tep 1 did not resolve the issue, you can use Service Tools to clear

additi

onal information that could be causing the issue:

a Start the printer in Diagnostics Boot Mode

b Perform an EEROM reset

3 If step 2 did not resolve the issue, it is possible to completely clear the

inf

ormation on the Hard Disk and the different EEROMs, leaving them in an

equivalent state to a new part:

a A

ccess the Service Utilities Menu

b In the Secure Disk Wipe menu, set the Sanitize level to “Unsecure mode”

c Execute the Disk Wipe. This takes 45-75 minutes and it will completely

lear all partitions in the Hard Disk which contain user data, including

the partition where the Operating System is installed. After the disk wipe

has completed, a backup firmware version will automatically be installed

from a backup partition to allow the unit to start up. This firmware version

is very old.

d T

he firmware in the printer should be upgraded to the latest official

ersion as soon as the printer has restarted.

After step “c”, any 79:04 which is caused by corrupt data in the printer will

be s

olved.

Important note:

It is possible that the corrupt data came to be in the printer as a

nsequence of some activity in the customer’s workflow. In this case, it is

possible that the issue will happen again. In these cases, it is very important

to understand the sequence of events in the customer’s workflow that led to

the error occurring. Once the error can be traced in the customer’s workflow,

escalate the issue to the GBU (through the GCC). This is done to implement

any changes in the printer’s firmware that can prevent these issues occurring

again.

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