Xerox Nuvera 100, Service Manual

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ii LINX™ Solid Inkjet 100 Service Manual
Hot Printhead-To-Drum Spacing Adjustment
Tools required:
• Printhead-to-Drum Digital Indicator Gauge Kit
• Small (3/16 in.) flat-blade screwdriver
• 9/64 in. hex tip
• Magnetic screwdriver
• T-20 TORX tip
• Torque Limiting Screwdriver
• Computer running PC-based service diagnostics
This procedure assures that the printhead is the proper distance from
the drum. Make this adjustment after removing or replacing the
printhead and performing a cold adjustment or when the head has
not been installed, but requires a minor adjustment.
1. Remove the right cover and the left cover.
2. Remove the top cover.
3. Remove the ink loader and the metal heat cover.
4. Tilt the printhead to its print position and, if removed, attach
the head tilt spring.
CAUTION
The head tilt cam gear must be completely disengaged from the
drive gear. If not, the printhead-to-drum gap may be too small,
allowing the printhead faceplate to come in contact with the drum.
5. Place the printer in diagnostic mode by setting dip switch 1 in
the down position.
6. Prepare your laptop computer for running diagnostics and
connect the diagnostics cable to the printer.
7. Turn on the printer.
8. In your PC- based diagnostics, scroll to the “Printhead Adjust”
test suite and run the “Do Printhead-to-Drum Gap Adjustment
(Hot)” routine. The routine automatically centers the
printhead, and brings the printhead and drum to their
operating temperatures.
9. If they are not already tightened, tighten the printhead
mounting screws to 20 in- lbs.
10. If they are not already loose, loosen the printhead’s four locking
screws (two at each end of the printhead) until they are just