
Service Tests and Utilities
3-6 HP Designjet T Series — Service Manual
Entering the Service Tests Menu
In order to enter the Service Utility Menu, see Entering the
Service Utilities Menu on page 3-57.
1 Make sure the printer is switched OFF from the power switch on the front of
the printer and NOT from the power switch on the back of the printer.
2 For On-Site Engineers, hold the Up arr
ow key and the OK key down and
switch the printer ON using the front power switch. Wait until the LED of the
power switch stops flashing (usually after 5 seconds) before releasing ALL
three keys.
3 O
nce inside the Service Tests Menu use the Arr
ow keys to scroll through the
“Service Tests” selections. Press the OK key to begin a specific test when the
required Service Test is highlighted.
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1. Scan Axis
The complete Scan Axis test consists of individual tests for the different
components related to the Scan Axis. The subsystem that are included in this
assembly are:
Star Wheel Lifter
Automatic PPS Adjustment.
Scan Axis Servosystem
Cutter
You must perform the Scan-Axis Test after:
System Error Code 87:XZ.
The Service Tests work in a special Mode which does NOT
require the full Initialization of the Printer. Therefore it is
important that once you have finished with the Service
Tests, you MUST power OFF the Printer and Power ON
again before trying to print or before executing another
Service Test.
In some cases a quick press of a button may not be
recognized by the Printer. When pressing a button, be sure
to press it deliberately and all the way to the bottom of its
travel.
If the Printer hangs up during a test, switch the Printer OFF
and restart from step 1.
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