Xerox ColorQube 9301 Service Manual

February 2013
3-66
ColorQube® 9303 Family
IQ 19
Image Quality
IQ 19 Image Ghosting RAP
Use this RAP to fix image ghosting problems. Two types of ghosting are possible, simplex and
duplex. Examples of each type are shown in Figure 1 and Figure 2.
NOTE: Blocking, where ink from one print is deposited on the back of another print, can occur
when prints stack in the output tray. The combination of pressure from the weight of the media
and ambient heat may cause partial transfer of the image to adjacent prints.
Ensure IQ 1 Image Quality Entry RAP is performed before starting this RAP.
Initial Actions
WARNING
Ensure that the electricity to the machine is switched off while performing tasks that do
not need electricity. Refer to GP 14. Disconnect the power cord. Electricity can cause
death or injury. Moving parts can cause injury.
• Duplex ghosting may be caused by oil from the first side of the print transferring to the
second side via the transfix roller. Some amount of transfix roller ghosting is normal. This
type of ghosting is most pronounced on the first 2-sided print. Ghosting should fade on
subsequent prints. When duplex ghosting is evident run multiple 2-sided prints to attempt
to clear the defect and inform the customer.
• Attempt to repeat the customer's job using their print sequence and media.
• Press the Machine Status button on the keypad, select the Fault tab on the UI, then Cur-
rent Messages. If the message ‘Cleaning unit life extended, image quality may be
impacted’ is displayed, install a new cleaning unit, PL 94.10 Item 21.
Procedure
NOTE: Before printing TP 5 or TP 20, ensure that A4 or 8.5 x 11 inch plain paper is loaded long
edge feed into tray 4. Use the best quality media available. Do not use hole punched paper.
Print TP 13, Text Test Pages, followed by four prints of TP 5 Black Solid Fill Test Pages (TP 2
to TP 10). Evaluate the third and fourth prints for evidence of text in the black solid fills, visible
as a gloss difference.
The prints are good.
YN
The defect is simplex ghosting. Enter dC959 and run the Cleaning Unit Self Test. The
self test is successful.
YN
Install a new cleaning unit, PL 94.10 Item 21.
Perform dC959 Cleaning Unit Exerciser and run the slow speed exerciser. The slow
speed exerciser completes successfully.
YN
Go to 94-520-00 Cleaning Unit Drive Error RAP.
Print TP 20 Oil Bar Chase and Metering Blade Timing Test Pages. Evaluate the metering
blade timing test page only.
The test pages are good.
YN
Go to IQ 7 Metering Blade Timing RAP.
Check that the front drum thermistor, PL 94.20 Item 9 and the rear drum thermistor, PL
94.20 Item 10 are not bent or misaligned. Check for paper debris between the thermistors
and the drum and ensure that the thermistors are making good contact with the drum.
The thermistors are good.
YN
Install new components as necessary
• Front drum thermistor, PL 94.20 Item 9.
• Rear drum thermistor, PL 94.20 Item 10.
Perform dC335 Heater Monitor and Exerciser. Check the drum operating temperature.
The drum temperature is good.
YN
Go to 94-536-00, 94-538-00, 94-540-00, 94-542-00, 94-544-00, 94-546-00, 94-632-
00, 94-633-00 Drum Heat Error RAP.
Install a new cleaning unit, PL 94.10 Item 21. Print TP 13, Text Test Pages, followed by
four prints of TP 5 Black Solid Fill Test Pages (TP 2 to TP 10). Evaluate the third and
fourth prints for evidence of text in the black solid fills, visible as a gloss difference.
The
prints are good
YN
Re-install the original cleaning unit. The problem is not in the cleaning unit. Re-
define the image quality defect, refer to IQ 1 Image Quality Entry RAP.
The defect is duplex ghosting which is inherent to the product. To reduce the defect,
inform the customer to:
• Reprint the job.
• Print multiple, 2-sided sheets with heavy ink coverage (solid fill), then reprint the job.
• If possible, use different media.
• Print the jobs that exhibit this defect in simplex only.
The defect is duplex ghosting which is inherent to the product. To reduce the defect, inform the
customer to:
• Reprint the job.
• Print multiple, 2-sided sheets with heavy ink coverage (solid fill), then reprint the job.
• If possible, use different media.
• Print the jobs that exhibit this defect in simplex only.
A
A
B
B

Xerox ColorQube 9301 Specifications

General

Brand	Xerox
Model	ColorQube 9301
Category	All in One Printer
Language	English