Dell 2145cn Service Manual page 115

3) Horizontal Black Bands
Dark or blurry horizontal stripes occur in the printing periodically
Description
(These may occurs at regular intervals down the page.)
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Digital Printer
2) Supply Roller: 40.8 mm(YMC) / 43 mm(K)
3) Developing Roller: 30.6 mm(YMC) / 32.5 mm (K)
5) Paper Charge Roller : 26.7 mm
3. Contamination of the Gap-Ring
Alignment and Troubleshooting
2. The rollers in
the toner cartridge
may be contaminated.
1) Charge Roller: 26.7 mm
4) Transfer Roller: 45 mm
6) OPC Drum : 75.4 mm
7) Fusing Belt : 125.6 mm
-regular intervals 39.0 mm
Replace unit concerned with the roller
period matching to the interval of the
defect.
Replace the toner Cartridge.
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