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Troubleshooting for SC Errors
Troubleshooting
Troubleshooting
Troubleshooting
6.12 TROUBLESHOOTING FOR SC ERRORS
6.12.1 WHEN SC285-02 (MUSIC ERROR) IS DISPLAYED
Causes
The ID sensor cannot detect the MUSIC pattern
Color registration error is larger than the specified value [Assumed Cause]
1. Large drifting
"Large drifting" is the state where the color registration error is larger than the specified value. In the "Large drifting" state, the MUSIC pattern is shifted a long distance in the main scan direction (side to side), and is moved to the position where the MUSIC Sensor (TM/ID sensor) cannot be detected, or each pattern cannot be detected due to the pattern overlapping.
2. MUSIC pattern density error
Pattern with the lower density
3. Defective Image transfer belt/Image transfer unit
Belt scratched
Belt corrugation, belt skew
Cleaning failure
Background stains
Filming
"Filming" is a phenomenon where surface properties change over time.
Glossiness is one of the surface properties. In the "Filming" state, the whole or part (belt shaped) of the Image Transfer Belt surface becomes foggy. "Filming" changes reflected light, and the MUSIC Sensor (TM/ID sensor) may detect the input wrongly, which causes an error.
4. MUSIC sensor (TM/ID sensor) defective
Connector/ harness disconnected
Sensor surface dirty
Sensor malfunction
BCU malfunction
5. Paper transfer contact/release mechanism defective
Connector/ harness disconnected
Motor/ sensor malfunction
Imaging IOB malfunction
6. Laser optics positioning motor in laser unit defective
Connector/ harness disconnected
Motor malfunction