Iq12 Process Direction Bands, Streaks, And Smears Rap - Xerox WorkCentre 7132 Service Documentation

IQ12 Process Direction Bands, Streaks, and Smears RAP

Initial Actions
• Clean the IBT Cleaner. Check for wear or damage
• Check the stripper baffle in the Fuser for contamination.
• Check the 2nd BTR and the Detack Sawtooth for Toner contamination.
Procedure
NOTE: The repetition rate for Transfer Belt defects varies considerably, depending on paper
size and mode of operation. The defect may appear every sheet, or may occur every other
sheet.
The defect occurs in approximately the same position on multiple prints.
Y N
If the defect occurs intermittently, examine the Developer Housings for evidence of toner
clumping. If clumping is found, replace the Developer (PL 5.2). if this does not resolve the
problem
The defect is a full-width (LE - TE) Streak Deletion in Process Direction.
Y N
Remove the Fuser Assembly. Examine the Heat Roll for damage or contamination. Clean
or replace as required (PL 7.1).
Check the IBT Cleaner (PL 6.1). Ensure that the blade and the Mylar backing are free
from damage. Check that the auger turns freely. Clean repair or replace as required
Check the Developer Housing (PL 5.2). Repair or replace as required.
Check the Drum Cartridge for defects, nicks, sport and/or contamination.
If the problem is related to a single color, replace the Drum Cartridge (PL 4.1).
Print Test Pattern 59 at 20% coverage pattern for all colors. The defect is present for all col-
ors.
Y N
• Go to BSD 9.5 to check the 1st BTR bias circuit.
• Replace the Developer Housing (PL 5.2) for the affected color. Check the housing
for damage or toner clumping.
• If the problem continues, replace the HVPS (PL 11.1).
Check the ROS window for damage or contamination. Clean or replace as required.
Remove the IBT Cleaner (PL 6.1). Inspect the cleaning blade and Mylar seal for damage.
Clean or replace as required.
If the IBT Cleaner is OK, check the IBT Belt (PL 6.2) for damage or contamination. Ensure that
there is no debris or loose wiring, etc. in contact with the belt. Clean or replace as required.
Reversion 4.0
WorkCentre 7132
January 2007
3-11
Image Quality
IQ12