Iq 18 Irregular Duplex Gloss Differences Rap - Xerox ColorQube 9303 Series Service Manual

IQ 18 Irregular Duplex Gloss Differences RAP

Use this RAP when the output displays gloss variations visible on large areas of high ink cover-
age.
Irregular gloss defects can be in any direction,
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.
• Check the media type. Smoother media will provide a more uniform gloss finish.
• Check that the gloss defect is found only on the second printed side of a duplex print and
has an irregular shape.
If the gloss defect is present on simplex prints and runs in either the process or cross pro-
cess direction, go to:
– IQ 16 Scratches or Gloss Marks in the Process Direction RAP
– IQ 17 Gloss Marks in the Cross-Process Direction RAP
– IQ 19 Image Ghosting RAP
Procedure
NOTE: When printing TP 5 from dC959, 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 four duplex copies of TP 5 Black Solid Fill Test Pages
prints for irregular gloss defects.
NOTE: It is normal for the second printed side (page 1) to be glossier than the first printed side
(page 2).
Check that page 1 shows uniform gloss across the page and that no gloss defects are visible.
Page 1 is good.
Y N
Run dC335 Heater Monitor and Exerciser Check the registration/preheat assembly tem-
perature. Select RaLPH in the component list. The registration/preheat temperature is
good.
Y N
Go to 88-500-00 to 88-502-00, 88-512-00
Check the registration/preheat air pump, refer to
Pump Incorrect Current RAP. The registration/preheat air pump is good.
Y N
Install a new registration/preheat air pump,
The printer is operating within specifications. Refer to
additional fixes.
A
ColorQube® 9303 Family
Figure 1.
(TP 2 to TP 10). Evaluate the final
Preheat Thermal Error RAP.
88-508-00 Registration/Preheat Air
PL 88.10 Item 5.
IQ 19 Image Ghosting RAP for
A
Perform SCP 5 Final Actions.
Figure 1 Irregular gloss print defect
February 2013
3-65
Image Quality
IQ 18