Lexmark C720 Service Manual - Page 185
Wrinkle / Image Migration Service Check, wrinkle
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5024-001 Wrinkle / Image Migration Service Check Banding shadows of different optical density appear due to the wrinkle, image migration and color misregistration occurring on the paper. FRU 1 Check for Recommended Paper 2 Paper Discharger Unit 3 Transfer Unit 4 Fuser Unit 5 Fuser Unit Action Paper being used is not recommended for this printer. Recommended paper or fresh pack of paper. Paper discharger unit in the transfer unit is not functioning. Ensure discharger unit is properly installed. The transfer unit is not locked properly. Check that transfer unit is locked on both sides. The fuser roller is deformed or has reached end of life. Ensure the fusing unit is installed properly and fixed with set screws. One side of the fuser unit was lifted when installed. Diagnostic Information 2-105
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