Iq 13 White, Black Or Colored Spots Rap - Xerox DocuColor 12/DCCS50 Service Manual

IQ 13 White, Black or Colored Spots RAP

IOT White, Black or Colored Spots RAP. This RAP is used when the IOT output print has white,
black, or colored spots.
Initial Actions
NOTE: If the image defect appears as a white spot (or deletion) with a Toner agglomerate near
the middle of the spot (see Defect Sample 19), go to
defect as a Debris-Centered Deletion.
NOTE: If the image defect has the appearance of a small barcode symbol that is read by a bar-
code scanner (see Defect Sample 25), replace the Drum CRU
NOTE: After replacing developer material, go to IQ47 ATC Sensor RAP,
up procedure
This failure can be caused by the following:
• Developer Problems
• Toner Dispense Problems
• Failure in the Drum Cleaning system
• Flaws on the Drum
• Flaws on the IBT Film
• Bead Carryout
• Failure of the IBT Cleaning Blade
Perform the following:
• Clean the Document Glass.
• Clean the Lens and Mirrors.
• Clean/vacuum all Paper path areas.
• Clean/ vacuum all related xerographic components.
Procedure
Place the Color Test Pattern on the platen and make a print in Black, Yellow, Magenta and
Cyan. The defect is present in all four colors.
Y N
There is Bead Carry out on the faulty print.
Y N
Run 5 copies in each color of Test Pattern #11 UI or Test Pattern #99 PWS. Inspect
the samples for isolated defects in a specific color. Inspect the Developer Housing of
the problem color for leaks, spills, damage or flaws.
leaks, spills, damage or flaws.
Y N
Replace the developer material for the faulty color
Replace the Developer Housing for the faulty color
Perform ADJ 9.1.1 Max Setup. After Max Setup is completed, check the high density
areas of the output copies. If the high density areas are not dark enough, perform a man-
ual tone up. Also, inspect the Developer Bias Brush for contamination or wear. Clean or
replace the Brush (PL 6.1) (REP 6.1.4) as required.
A
Image Quality
IQ 13 White, Black or Colored Spots RAP
IQ 17 Deletions RAP and troubleshoot the
(Machine Consumables).
Appendix 1. ATC set-
The Developer Housing has
(Machine Consumables).
(PL 6.6).
manuals4you.com manuals4you.com
A
Inspect the IBT Belt for contamination, dents or flaws that would cause the defect. The
Belt has dents or flaws that caused the defect.
Y N
Perform the following:
• Gently clean the IBT Belt with a soft lint free cloth
• Check/clean or replace the IBT Cleaning Blade
• Clean the 1st BTR (PL 7.6).
• Clean the 2nd BTR (PL 7.9).
• Remove the Drum. Check the Drum for damage or excessive contamination caused
by failed cleaning brush or blade, If damage or cleaning failure is present, replace
the Drum CRU (Machine Consumables).
Replace the IBT Belt (PL 7.5).
1/05
3-18
IBT
(PL 7.8)
Reissue
DocuColor 12/DCCS50