Fuser Ih Pwb Communication Error; Current Pwb Error; Fuser Power Supply Incompatibility; Toner Motor K Error/Toner Motor C Error - Kyocera FS-C8600DN Service Manual

Code Contents
6950 Fuser IH PWB communica-
tion error
No response is received in 30
ms since a command is sent
to IHCPU.
A checksum error is detected
10 times in succession.
6960

Current PWB error

Less than 1A is continuously
observed for 5 s.
6990 Fuser power supply incom-
patibility
Information won't match
between the engine backup
and the fuser IH PWB.
7001 Toner motor K error
When the toner motor K is
driven, the pulse sensor is not
detected for 15 times in 200
ms intervals has occurred in
15 times.
During the toner motor is
driven, an event in which
TMOT_LOCK turns to H
(locked) 5 times has occurred
in 15 sets.
7002 Toner motor C error
When the toner motor K is
driven, the pulse sensor is not
detected for 15 times in 200
ms intervals has occurred in
15 times.
During the toner motor is
driven, an event in which
TMOT_LOCK turns to H
(locked) 5 times has occurred
in 15 sets.
Causes
Defective connec- Reinsert the connector. Also check for conti-
tor cable or poor nuity within the connector cable. If none,
contact in the con- replace the cable.
nector. Fuser IH PWB (YC4) and engine PWB
(YC26)
Defective fuser IH Replace the fuser IH PWB and check for
PWB. correct operation.
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation (see page 1-5-49).
Defective current Replace the current PWB and check for cor-
PWB. rect operation.
Differences in set- When this has happened after initialization
tings after initializa- using U201, make settings identical with the
tion voltages on the IH PWB using U169.
Defective fuser IH Replace the fuser IH PWB and check for
PWB. correct operation.
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation (see page 1-5-49).
Data damage of Contact the Service Administrative Division.
EEPROM.
Defective connec- Reinsert the connector. Also check for conti-
tor cable or poor nuity within the connector cable. If none,
contact in the con- replace the cable.
nector. Toner motor K and engine PWB (YC27)
Defective screw Replace the screw sensor K.
sensor K.
Defective toner Replace the toner motor K.
motor K.
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation (see page 1-5-49).
Defective connec- Reinsert the connector. Also check for conti-
tor cable or poor nuity within the connector cable. If none,
contact in the con- replace the cable.
nector. Toner motor C and engine PWB (YC27)
Defective screw Replace the screw sensor C.
sensor C.
Defective toner Replace the toner motor C.
motor C.
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation (see page 1-5-49).
1-4-58
Check procedures/
corrective measures
2MN/2N1-1