Phaser 7500 Printer Service Manual 5-51
Print-Quality Troubleshooting
IQ-22 Toner Contamination at Lead/ Trail Edge
Lead Edge: Paper lead edge contacts the Belt when it is transported from REGI to
Transfer.
Trail Edge: The trail edge of paper that loops between the Transfer Fusing
sections, at the release of the Secondary Transfer NIP, moves opposite to the feed
direction and contacts the BTR surface, or bounds up and contacts the Belt.
Cause
• Toner contamination suddenly appears on the 2nd BTR or Belt (background).
Initial Actions
• Check the paper transfer path.
• Ensure there are no debris on the transfer path.
Troubleshooting Reference
Applicable Parts Example Print
Troubleshooting Procedure
Step Actions and Questions Yes No
1 Run 1-sided print to check on which
side (transfer side or side 2) does
the contamination exists.
Increase the
margin.
Troubleshooting
complete.
Toner Contamination at Lead/Trail Edge
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