HP Designjet 2800/3800cp Service Manual - Page 117

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. Service Tests HP DesignJet CP Series Printers 4-31