7001-Toner Motor Error; 7350-Toner Refreshing Mode Error; F0/F000-Main Board Error - Kyocera Mita FS-6750 Service Manual

Troubleshooting
Diagnostic
7001—Toner motor error
Table 6. 15 7001 error
The engine board has
detected the TNMOC* signal
for more than a certain time.
7350—Toner refreshing mode error
Table 6. 16 7350 error
Toner in the developer cannot
be consumed even more than
a certain time in refresh
mode operation.
F0/F000—Main board error
Table 6. 17 F0/F000 error
The front panel board (KP-
906) cannot communicate
normally with the main
board (KP-903) for 30 sec-
onds.
FS-6750
Meaning
• Excessive torque due to
hardening of toner.
• Defective toner motor.
• Defective harness
between developer and
high voltage unit.
• Defective harness
(S02266) between high
voltage unit and engine
board.
• Defective engine board
(KP-904).
Meaning
• Defective engine board
(KP-904).
• Defective high voltage
unit.
Meaning
• Defective main board (KP-
903).
• Defective system DIMM
[board KP-893].
• Improper insertion of sys-
tem DIMM [board KP-
893] and main board (KP-
903).
• Defective front panel.
• Defective harness
(S02258) between connect
board and relay board.
• Defective harness
(S02801) between relay
board and front panel.
6-15
Suggested causes
Suggested causes
Suggested causes
Corrective action
Replace the developer.
Replace the developer.
Replace harness.
Replace harness.
Replace the engine board
(KP-904).
Corrective action
Replace the engine board
(KP-904).
Replace the high voltage unit.
Corrective action
Replace the main board (KP-
903).
Replace the system DIMM
[board KP-893].
Insert them properly.
Replace the front panel.
Replace harness (S02258).
Replace harness (S02801).