6
© 2008-2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO5520C/6520C/6530C
ERROR CODE and TROUBLESHOOTING
6 - 85
[C4E0] Fuser pressure release abnormality
[C4E1] Fuser pressure contact abnormality
1. Is the pressure roller contact/release detection sensor working? (Perform the input check: 03-
[FAX]OFF/[3]/[F])
* If it is working properly, proceed to 7. If not, check 2 to 6 below.
2. Is there any foreign matter or damage on the pressure roller contact/release detection sensor?
3. Check if the drawer connector for the fuser unit or any of connectors on the equipment side is
disconnected or open-circuited.
4. Check if the harness between the pressure roller contact/release detection sensor and the
connector (CN306) on the LGC board is disconnected or open-circuited.
5. Replace the sensor.
6. Replace the LGC board.
7. Is the pressure roller contact/release clutch working? (Perform the output check: 03-273)
* If it is working properly, proceed to 12. If not, check 8 to 11 below.
8. Is the drawer connector for the fuser unit or any of connectors on the equipment side is
disconnected or open-circuited?
9. Is the harness between the pressure roller contact/release clutch and the connector (CN311) on
the LGC board disconnected or open-circuited?
10.Replace the clutch.
11. Replace the LGC board.
12.If there is any mechanical problem on the fuser unit, fix the mechanism.
13.Check that 2 dowels are securely fitted into the holes of the fuser drive unit.
[C4E2] Fuser belt rotation detection sensor abnormality
1. Is the fuser belt rotation detection sensor working? (Perform the input check: 03-[FAX]ON/[4]/[F])
* If it is working properly, proceed to 7. If not, check 2 to 6 below.
2. Check if there is any foreign matter or damage on the fuser belt rotation detection sensor.
3. Check if the connector for the fuser unit or any of connectors on the equipment side is
disconnected or open-circuited.
4. Check if the harness between the fuser belt rotation detection sensor and the connector (CN306)
on the LGC board is disconnected or open-circuited.
5. Replace the sensor.
6. Replace the LGC board.
7. Is the sensing plate of the fuser belt rotation detection sensor damaged or smudged?
8. Check if the fuser belt and its drive section have any abnormality.
9. Check if the gear of the fuser drive unit is not engaged, any parts are extremely abraded, the
one-way clutch is not smoothly operated or the surface of the bushing is scraped.
10.Check if grease is applied to the gears and shafts of the fuser unit and fuser drive unit.
To Next Page
Loading...
