4-3
Service Tests and Utilities
HP Designjet 4500 Printer Series Service Manual
Service Tests (Diagnostics)
The following is a list of all internal Service Tests available in the Printer.
Instructions for entering the Service Tests menu are given on Page 4-5.
1 Scan Axis Test ⇒ Page 4-7
The purpose of this test is to verify the operation of components related to the
Scan Axis.
2 Media Drive Test ⇒ Page 4-12
The purpose of this test is to verify the operation of components related to the
Media Axis.
3 Electronics System ⇒ Page 4-28
The purpose of this test is to verify the operation of the:
Main PCA (Formatter).
Printer Configuration.
Gamut PCI PCA.
Power Supply Unit.
PrintMech.
Interconnect PCA.
Carriage Communication.
ISS Communication.
4 Carriage Assembly Test ⇒ Page 4-38
The purpose of this test is to verify the operation of the Carriage Assembly.
5 Sensors Test ⇒ Page 4-39
The purpose of this test is to verify the operation of the following Sensors:
Window Sensor.
Printhead Cleaner (PHC) Access Door Sensor.
Drive Pinch Lever Sensor.
Main Media Sensor
Single Sheet Sensor
Back Channel
Drawers Switch
Media Lever Sensor on Drawers 1 and 2
Roll 1 and 2 Media Sensors
Drawer Switch Sensors 1 and 2
Back Tension Media Sensor
Stacker Presence Senor
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