5/2011
3-9
Phaser 4600/4620 Printer Service Manual
IQ7
Image Quality
Revision - Xerox Internal Use Only
IQ7 Spots
There are spots of toner randomly scattered on the page.
WARNING
Do not touch the Fuser while it is hot.
Initial Actions
•
Check that the paper is clean, dry, and meets specifications.
•
If using recycled paper, it may have spots.
•
Inspect the paper path for items, such as staples, paper clips, and paper scraps.
•
Check if the defects repeat at regular intervals. If so, see
IQ18
.
•
Check Drum surface for spots or contamination.
•
Check the Fuser for wear or contamination.
•
Check that the Drum Cartridge contacts are clean.
Figure 1 Spots example
Procedure
Check the media. The media is clean, of the approved type, and free of defects.
Y
N
Replace the media with approved media from a freshly opened package.
Check the media path for dirt, debris, or toner residue. The media path is clean.
Y
N
Clean the media path.
Replace the Drum Cartridge and reprint the test print. The image contains spots.
Y
N
Perform SCP 6 Final Actions.
Remove the Transfer Roller and check for surface contamination or excessive wear. The
Transfer Roller is good.
Y
N
Replace the Transfer Roller,
REP 9.1
.
Remove the Fuser. Check for damage or debris on the rollers. The Fuser rollers are good.
Y
N
Clean or replace as necessary;
•
Heat Roller
PL 10.11 Item 12
•
Pressure Roller
PL 10.11 Item 3
•
Fuser
PL 10.10 Item 1
Check connections between the IP Board and Laser Unit. The connections are secure.
Y
N
Secure the connections.
Replace the IP Board,
REP 3.6
.
