Kyocera TASKalfa 2550ci - Page 289

2MV
1-4-33
7414
Drum unit Y type mismatch
problem
Absence of the drum unit Y is
detected.
Drum unit connec-
tor inserted incor-
rectly.
Reinsert the drum unit Y connector if neces-
sary.
Different type of
the drum unit is
installed.
Install the correct drum unit
(see page 1-5-16).
7420
Transfer belt unit type mis-
match problem
Absence of the transfer belt
unit is detected.
Transfer belt unit
connector inserted
incorrectly.
Reinsert the transfer belt unit connector if
necessary.
Different type of
the transfer belt
unit is installed.
Install the correct transfer belt unit
(see page 1-5-17).
7601 ID sensor 1 (front) error Defective ID sen-
sor.
Replace the ID sensor 1.
Defective PWB. Replace the engine PWB check for correct
operation (see page 1-5-45).
7602 ID sensor 2 (rear) error Defective ID sen-
sor.
Replace the ID sensor 2.
Defective PWB. Replace the engine PWB check for correct
operation (see page 1-5-45).
7611 ID sensor (K) density error
When the concentration in a
bias calibration is unusual.
Defective ID sen-
sor.
Replace the ID sensor.
Defective PWB. Replace the engine PWB check for correct
operation (see page 1-5-45).
7612 ID sensor (C) density error
When the concentration in a
bias calibration is unusual.
Defective ID sen-
sor.
Replace the ID sensor.
Defective PWB. Replace the engine PWB check for correct
operation (see page 1-5-45).
7613 ID sensor (M) density error
When the concentration in a
bias calibration is unusual.
Defective ID sen-
sor.
Replace the ID sensor.
Defective PWB. Replace the engine PWB check for correct
operation (see page 1-5-45).
7614 ID sensor (Y) density error
When the concentration in a
bias calibration is unusual.
Defective ID sen-
sor.
Replace the ID sensor.
Defective PWB. Replace the engine PWB check for correct
operation (see page 1-5-45).
7620 ID sensor timing error
Color registration correction
was failed.
Defective ID sen-
sor.
Replace the ID sensor.
Defective PWB. Replace the engine PWB check for correct
operation (see page 1-5-45).
Code Contents Causes
Check procedures/
corrective measures