Xerox ColorQube 8570 Service Manual page 80

91,723 Printhead Tilt Fault
A Printhead Tilt error has occurred. The following troubleshooting procedure applies to this
error.
Table 1 Applicable Fault Code
91,723 Printhead is not following forward on Headtilt Cam
Initial Actions
• Reboot printer and verify the error persists.
• Check that Process Drive gear train is properly home.
• Check for obstructions or ink spills around the Printhead.
• If the problem persists, perform the following procedure.
Troubleshooting Reference
Applicable Parts (Chapter 5 - Parts List)
• Printhead Assembly, PL 2.1 Item 3
• Printhead Restraints, PL 2.1 Item 9,
• Drum Maintenance Camshaft, PL 2.1 Item 11
• Roll Block, PL 2.1 Item 28
• Process Drive with Gear Box and Motor,
• Head Tilt Missing Tooth Gear, PL 4.1 Item 15
Procedure
Rehome the Process Drive (ADJ 1.3). Reboot printer. Does the error persist?
Y N
Troubleshooting complete.
Is the Head Tilt Spring (located on the Left Printhead Restraint) is installed on the v-
notch on the Printhead?
Y N
Install the Head Tilt Spring on proper notch on the Printhead as shown in
Inspect the Jetstack Cap. Is there visible ink collected on the Printhead side of the cap?
Y N
Check the Wiper Alignment. Is the Wiper misaligned?
Y N
Remove the Printhead Restraints
ings surfaces, chassis base under the Head Tilt gear, and Roll Block for ink puddles
or debris. Is there visible ink outside of the Printhead that would hinder the
Head Tilt Gear of Printhead motion? Is there ink outside of funnels or on the
circuit board of the Printhead?
Y N
Rehome the Process Drive
and down in correlation to the Camshaft movement?
Y N
Replace the Drum Maintenance Camshaft
(REP 4.13).
A B C D
Fault Messages and Codes
91,723
PL 2.1 Item 10
PL 4.1 Item 13
Figure
(REP 2.9). Inspect the Printhead journals, bear-
(ADJ 1.3). Does the Drum Maintenance move
(REP 2.11) and Process Drive
A B C D
Rehome the Process Drive
the Left Side of the Printhead) applying pressure to the Printhead during
the head motion cycle?
Y N
The Overload Spring mechanism is broken. Replace the printer.
Troubleshooting complete.
The Printhead has overflowed. Remove the Printhead
and gear train of ink debris. Reinstall a new Printhead.
The Wiper Clip is interfering with Head Tilt motion. Rehome the Wiper Blade
bottom of travel.
Remove the collected ink. Tilt the Printhead to Standby position. Verify wiper motion rotates
the Jetstack Cap away from the Printhead. Verify the lift posts on the Wiper Clips are not bro-
ken or bent.
1.
Figure 1 Installing the Printhead Tilt Spring
October 2012
2-34
(ADJ 1.3). Is the Overload Spring (underneath
(REP 2.3). Clean the chassis
(ADJ
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ColorQube 8570/8870 Service Manual
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