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e-STUDIO5540C/6540C/6550C/5560C/6560C/6570C
ERROR CODE and TROUBLESHOOTING
8 - 127
8.3.16
Communication related service call
[C550] RADF I/F error
Check item
Measures
Fuser unit
• Fuser belt rotation detection sensor check
(Input check: 03-[FAX]ON/[4]/[F])
• Connector check in the fuser belt rotation sensor
• Harness check in the fuser belt rotation sensor
• Detection plate (rotor) check
• Grease check in the gear (shaft / tooth flank)
• Fuser roller check
• Check that the C-ring in the pressure roller does not come
off.
• Check that the bearing in the heat pipe roller rotates
properly.
• Fuser unit installation check (Check that the screws fixing
the fuser unit are not loose.)
Fuser drive unit
• Bushing check
• Check that the drive unit is correctly installed (2 dowels).
• Check that the drive metal plate is not broken.
• Check that the gear is not damaged or worn.
• One-way clutch check
• Grease check in the gear (shaft / tooth flank)
LGC board
• Connector check (CN306)
• Board check
Replace parts
Remarks
Fuser belt rotation detection sensor
Detection plate (rotor)
Dirty/damaged
Fuser roller
Deformed/damaged
Heat pipe roller bearing
Locked (Rotation failure)
Bushing
Worn
Drive plate
Bend section broken
Gear
Teeth damaged, worn
LGC board
Classification
Error item
Optional communication related
service call
Communication error has occurred between the RADF and
the scanner.
Check item
Measures
RADF board
• Connector check (CN70, CN71)
• Harness check
• Board check
SLG board
• Connector check
• Board check