October 2012
4-105
ColorQube 8570/8870 Service Manual
ADJ 1.2, ADJ 1.3
Repairs and Adjustments
Xerox Internal Use Only - Revised, 3rd Revision
Printhead Not Installed
Adjustment
1. Disengage the Headtilt Gear as shown in Figure 3.
Figure 3 Head Tilt Gear Indicator
ADJ 1.3 Process Drive Alignment
Purpose
To correctly orient the Process Drive’s Gears to their home positions.
NOTE: Usually, manually tilting the head back and forth using Drum Maintenance Shaft should
leave the Process Drive aligned.
CAUTION
Place the Printhead, Head Tilt Gear, Printhead Wiper Blade, and Process Drive in their home
positions before restoring printer power. Improper alignment could result in damage or errors.
Adjustment
NOTE: For additional information, refer to Process Drive Alignment video (also available in the
ColorQube 8570/8870 Training materials).
1. Remove the Control Panel Cover (REP 1.5).
2. Remove the Right Side Cover (REP 1.11).
3. Remove the Lower Inner Duplex Guide (REP 3.2).
4. Remove the Inner Simplex Guide (REP 3.1).
5. Remove the Process Drive Assembly (REP 4.13).
6. Rotate the Process Drive Gears to align positions as shown in Figure 1. Pin the Gears if
pins are available.
7. Verify the Transfix Gear at 11:00 and 6:00 positions as shown in Figure 1.
8. Re-install the Process Drive Assembly.
Examine the Process Drive alignment points to verify proper gear alignment.
• The holes in the Process Drive and gears must align as indicated in Figure 1.
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