Samsung CLP-350N Service Manual page 120

Adjustment and Troubleshooting
5) Background
• Description
1. Does character
exist less than 2% per a page, and
hasn't it been used long time?
2. Does recycle paper be used?
3. Has the life span of the
developer ended?
4. Is the movement
(Up and Down) of the transfer
roller smooth?
5. Is the HVPS normal?
Service Manual
4-60
The toner cartridge is basically designed to print
3,000 sheets with 5% image.
If it prints more than 3,000 sheets (around
5,000 sheets) with 2% image, a background
can be occurred.
The B/S is not guaranteed if using recycle paper.
Replace the developer when the life span of it
has been ended.
Clean the bushing part of the transfer roller.
If the problem is still not solved, replace the
developer.
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