Developer Unit M Type Mismatch Error; Developer Unit Y Type Mismatch Error; Id Sensor 1 Error; Id Sensor 2 Error - Kyocera FS-C8600DN Service Manual

Code Contents
7403 Developer unit M type mis-
match error
Absence of the developer unit
M is detected.
7404 Developer unit Y type mis-
match error
Absence of the developer unit
Y is detected.
7601

ID sensor 1 error

An abnormal value is detected
in the input data to ID sensor
1.
Dark potential error
FrontDarkP and FrontDarkS
are greater than 0.80V.
Light potential error
FrontBrightS is smaller than
FrontDarkS.
FrontBrightP is smaller than
FrontDarkP + 0.5V.
7602

ID sensor 2 error

Dark potential error
RearDarkP and RearDarkS
are greater than 0.80V.
Light potential error
RearBrightS is smaller than
RearDarkS.
RearBrightP is smaller than
RearDarkP + 0.5V.
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. Developer unit M and front PWB (YC11)
Front PWB (YC2) and engine PWB (YC10)
Different type of Install the correct developer unit.
the developer unit
is installed.
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. Developer unit Y and front PWB (YC15)
Front PWB (YC2) and engine PWB (YC10)
Different type of Install the correct developer unit.
the developer unit
is installed.
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. ID sensor 1 and feed PWB 1 (YC10)
Feed PWB 1 (YC1) and engine PWB (YC6)
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. ID sensor 2 and feed PWB 1 (YC10)
Feed PWB 1 (YC1) and engine PWB (YC6)
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation (see page 1-5-49).
1-4-66
Check procedures/
corrective measures
2MN/2N1