HP Color LaserJet 8500 Service Manual - Page 109
Duplex registration (HP Color LaserJet 8550), DUPLEX REGISTRATION MENU, PRINT TEST TRAY n X
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Duplex registration (HP Color LaserJet 8550) The duplex registration feature allows precise alignment of images on the front and back of a duplexed page. Image placement varies slightly for each input tray. The alignment procedure must be performed for each tray. Y Axis X Axis Tray 2 Duplex Registration Adjustment Figure 16. Duplex registration 1 Press MENU until DUPLEX REGISTRATION MENU appears on the printer control panel display. 2 Press ITEM until PRINT TEST PAGE appears for the tray you want. 3 Press SELECT to print the page. 4 Hold the printed page up to a light source and choose the number on each axis where the lines on the front and back of the page align most accurately. 5 Repeat step 1. 6 Press ITEM until TRAY n X= appears and use -VALUE+ to enter the number you selected from the test page in step 4. 7 Press SELECT to store the value. An asterisk in the lower right corner of the display indicates the currently stored value. 8 Repeat steps 6 and 7 for the y axis. EN Duplex registration (HP Color LaserJet 8550) 107