Kyocera FS-C8520MFP Service Manual page 216

Code Contents
7101
Toner sensor K error
7102
Toner sensor C error
7103
Toner sensor M error
7104
Toner sensor Y error
7601 ID sensor 1 (front) error
7602 ID sensor 2 (rear) error
7611 ID sensor (K) density error
When ID sensor 2 detected
CTD is 500 or less.
7612 ID sensor (C) density error
When ID sensor 2 detected
CTD is 500 or less.
7613 ID sensor (M) density error
When ID sensor 2 detected
CTD is 500 or less.
Causes
Defective Devel-
Replace the developer unit K
oper unit.
(see page 1-5-14).
Defective PWB. Replace the engine PWB check for correct
operation (see page 1-5-32).
Defective Devel-
Replace the developer unit C
oper unit.
(see page 1-5-14).
Defective PWB. Replace the engine PWB check for correct
operation (see page 1-5-32).
Defective Devel-
Replace the developer unit M
oper unit.
(see page 1-5-14).
Defective PWB. Replace the engine PWB check for correct
operation (see page 1-5-32).
Defective Devel-
Replace the developer unit Y
oper unit.
(see page 1-5-14).
Defective PWB. Replace the engine PWB check for correct
operation (see page 1-5-32).
Defective ID sen- Replace the ID sensor 1.
sor.
Defective PWB. Replace the engine PWB check for correct
operation (see page 1-5-32).
Defective ID sen- Replace the ID sensor 2.
sor.
Defective PWB. Replace the engine PWB check for correct
operation (see page 1-5-32).
Defective ID sen- Replace the ID sensor.
sor.
Defective PWB. Replace the engine PWB check for correct
operation (see page 1-5-32).
Defective ID sen- Replace the ID sensor.
sor.
Defective PWB. Replace the engine PWB check for correct
operation (see page 1-5-32).
Defective ID sen- Replace the ID sensor.
sor.
Defective PWB. Replace the engine PWB check for correct
operation (see page 1-5-32).
1-4-28
Check procedures/
corrective measures
2MY/2MZ