HP 1055CMHP - Manual (Page 91)

Service Tests and Utilities
4-17 HP DesignJets 1050C and 1055CM Printers Service Manual
5. Scan Axis
The purpose of this test is to verify the operation of the Scan Axis
Motor.
You must perform the Scan-Axis Test after:
n Scan-Axis Assemblies are disassembled or replaced.
n Carriage is disassembled or replaced.
n Electronics Module is replaced.
n Tubes System is disassembled or replaced.
WARNING ALL THE COVER SENSORS ARE DISABLED WHEN IN
THE SERVICE TESTS MENU. IF THE CARRIAGE IS
MOVING IT WILL NOT STOP IF THE WINDOW IS
OPENED, SO BE VERY CAREFUL NOT TO PUT YOUR
HANDS INSIDE.
WARNING IF POSSIBLE ALWAYS PERFORM THIS TEST BEFORE
REPLACING THE SCAN AXIS MOTOR. IF THIS TEST
PASSES, DO NOT REPLACE THE SCAN AXIS MOTOR.
NOTE 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 Test, you
MUST power OFF the Printer and Power ON again before
trying to print.
Perform the Scan Axis test as follows:
NOTE Perform this test with the Printheads and the Tubes System
installed in order to get values that can be compared correctly.
1 In the Service Tests submenu, scroll to "5. Scan Axis" and press
Enter.
Service Tests
3. Hard Disk Drive
2. EIO Card
4. Ink Pressure System
5. Scan Axis
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1. Electronic Systems
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