HP Color LaserJet 8500 Service Manual - Page 484

3,000-sheet stapler/stacker troubleshooting Note Calibrating the staple position Recalibrate the staple position only if the accumulator assembly, the carriage assembly, or the controller PCA is replaced. NVRAM located in the controller PCA keeps in memory the configured compensation values for the staple position. When the device is in service mode, you can gain access to the flexible calibration menu. To calibrate the staple position 1 Turn the printer off. 2 Enter service mode (see "To set the device in service mode" later in this chapter). As the device powers on, the NVRAM receives the calibration values. 3 After successful power on, exit service mode (see "To exit service mode" later in this chapter). 4 Turn the printer on and wait until Ready appears on the control panel display. The user LED, located at the top of the front cover, should blink green. 5 Press MENU until Configuration of Stkr appears on the control panel display. 6 Press ITEM until Default of Staples appears. 7 Press - VALUE + until One Staple appears. 8 Press SELECT. 9 Press MENU until Information Menu appears. 10 Press ITEM until Print Paper Path Test appears. 11 Print a ten-page job to the stapler bin (optional bin 1). 12 Check the staple position of the 10-page print job against the staple position in figure 239 on page 483. • If the positions are not comparable, then the device should be recalibrated; continue with step 13 below. • If the positions match or are close to a match, the device does not require recalibration; proceed to step 18. 13 Press MENU until Configuration of Stkr appears. 14 Press ITEM until X Compensation/Y Compensation appears. 482 Chapter 7 - Troubleshooting EN