Paper Rolled On The Opc Drum; Defective Adf - Samsung SCX-4720F Service Manual

Troubleshooting

7.1.7 Paper rolled on the OPC Drum

• Description Paper is rolled up in the OPC.
Check and Cause
1. Paper is too thin.
2. The face of paper is curled.

7.1.8 Defective ADF

• Description ADF (Automatic document Feeder) does not operate correctly.
Check and Cause
1. Check if the ADF rubber or HOLDER rubber are
damaged or contaminated.
2. Check if the ADF Ass'y document sensors (3 paper
sensors) are working correctly.
Service Manual
7-4
Solution
1. Use paper that conforms to the printer specification.
2. Ensure paper is stored properly to prevent curl.
Note. To remove paper rolled in the OPC.
• Remove the toner cartridge from the set, taking
care not to touch the green surface. Use the
gearwheel at the side to rotate the OPC drum and
pull the paper from the cassette.
• Clean fingerprints on the OPC gently with soft
tissue, taking care not to scratch the surface.
Solution
1. Replace the contaminated or damaged part.
2. If you cannot confirm the damaged part with the
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