Service Call Tables
SM 4-15 D014/D015/D078/D079
Trouble-
shooting
SC240 C LD error: K
SC241 C LD error: Y
SC242 C LD error: M
SC243 C LD error: C
An error occurred at the LD
error terminal of the K, Y, M, or
C LD driver after initialization
of the LD because the power
to the LD was higher or lower
than the prescribed limit.
LD defective due to wear, damage,
short circuit
LDB harness disconnected, loose or
defective
Optical unit sensor error
SC268 C
At power on, one of the two
temperature sensors in the
optics unit detected a
temperature lower than -10°C.
-or-
It detected a temperature
higher than 80°C.
Thermistor disconnected (causes
extremely low temperature reading)
Thermistor damaged and short
circuited (causes extremely high
temperature reading)
VBCU defective
Skew Control Upper Lower Limit: Y
SC270 C
The pulse total for Yellow skew
control is not within the
prescribed range.
ITB not installed correctly.
ITB defective
Optical unit installed incorrectly
Optical unit defective