Samsung ML-2851ND/XAZ Service Manual page 78

8) Background
Description: Light dark background appears in whole area of the printing.
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Digital Printer
1. Does character exist less than
2% per a page, and hasn't it been
2. Is a recycled toner cartridge be used?
3. Has the life span of the toner
4. Is the movement(Up and Down)
Service Manual
Alignment & Troubleshooting
used long time?
cartridge ended?
of the transfer roller smooth?
5. Is the HVPS normal?
The toner cartridge is basically
designed to print 5K sheets with
5% image. If it prints more than
6K sheets with 2% coverage, a
background can occur.
The A/S is not guaranteed if using
a recyled the toner cartridger.
Replace the toner cartridge when
the life span of it has been ended.
Clean the bushing part of the
transfer roller.
1. If the problem is still not solved,
replace the toner cartridge.
2. Gently shake the toner
cartridge.
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