HP 2000CP 2500CP - Manual (Page 117)

Service Tests 4-31 HP DesignJet CP Series Printers
D15. Clean Roller
The purpose of this test is to enable you to rotate the Drive Roller when it
requires cleaning.
Perform the Clean Roller test as follows:
1 In the Diagnostics submenu, scroll to “D15 Clean Roller” and press
Enter.
Diagnostics
D15 Clean Roller
2 The “Unload Media” message is displayed on the front-panel. Remove
the media (if loaded).
3 The “Move Roller” message is displayed on the front-panel. Use the Up
Arrow to rotate the drive roller clockwise and the Down Arrow to
rotate the drive roller counter-clockwise.
The cover sensors are disabled during this test so the window
can be opened without having to over-ride the sensor.
4 Press Previous when you have completed the test. The “D1500 Done”
message is displayed on the front-panel if the test exits correctly.