October 2012
3-18
ColorQube 8570/8870 Service Manual
IQ11, IQ12
Revised, 3rd Revision - Xerox Internal Use Only
Image Quality
Does the error persist?
YN
Troubleshooting complete.
Follow the White Stripes (Pinstripes) procedure (IQ17) to correct the X-Axis problem. Does
the error persist?
YN
Troubleshooting complete.
Check that the Printhead is tilted forward against the Drum in proper print position. Realign the
Printhead if necessary.
Does the error persist?
YN
Troubleshooting complete.
Check the Printhead Wave Amp cables.
Release the end of the cable and carefully examine the conductor ends (a magnifier helps) to
see that they are not cracked or torn. If the cable looks good, carefully reinstall it using a ZIF
tool (refer to REP 2.3 for how to use the ZIF tool for unlocking/locking the ZIF cable connector).
NOTE: Failure to properly unlock the connector will damage the cable.
Are the Printhead Wave Amp cables secured?
YN
Reconnect the cables.
Replace the Drum Assembly (REP 2.4) if encoder is faulty. Does the error persist?
YN
Troubleshooting complete.
Replace the Wave Amp (REP 5.9).
IQ12 Vertical Lines Appear Wavy
Wavy or ill-formed vertical lines typically result from excessive Drum oiling. An error in X-Axis
or Y-Axis motion could also cause this error.
Initial Actions
1. Check that supported media is being used.
Troubleshooting Reference
Applicable Parts (Chapter 5 - Parts List)
• (Y-Axis Encoder) Drum Assembly, PL 2.1 Item 3
• Drum Maintenance Camshaft, PL 2.1 Item 11
• Drum Maintenance Pivot Plate, PL 2.1 Item 17
• X-Axis Motor, PL 4.1 Item 11
• Drum Temperature Sensor, PL 6.1 Item 5
Procedure
Check the X-Axis motion. Verify that there is nothing interfering with X-Axis motion. Replace
any defective parts found.
Does the error persist?
YN
Troubleshooting complete.
Figure 1 Wavy Vertical Lines on Output
Figure 2 X-Axis Motor Installed Incorrectly
A
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