Service manual

ELECTRIC PARTS LIST
4-42
3 DIS./ASSEMBLY
4 ELECTRIC PARTS LIST
Main body
Image con-
trol abnor-
mality
E46-91 The header read address is illegal. If copy operation is
being performed, the
machine stops after
paper ejection.
RL1 (main) is turned
OFF.
ICB (image control board)
Expansion memory
E46-99 E-RDH memory initialization error
E-RDH memory may not be con-
nected properly.
Communi-
cation
abnormality
E50-01 Main body drive serial input error 1.
Serial data is not received from the
main body drive section within 0.5
second after reception of power-on
ACK.
The machine stops
immediately. RL1
(main) is turned OFF.
PRCB (printer control
board)
E50-02 Main body drive serial input error 2.
Serial data is not received from the
main body drive section within 0.5
second after reception of power-on
ACK.
E50-03 Main body drive serial input error 3.
Serial data is not received from the
main body drive section within 0.5
second after reception of power-on
ACK.
E50-04 Main body drive serial input error 4.
Serial data is not received from the
main body drive section within 0.5
second after reception of power-on
ACK.
E50-05 Drive board communication recep-
tion error detection fault.
A reception error occurred during
reception of drive board serial data,
or a data checksum error or ID
information error occurred four
consecutive times although a
resent request had been issued
three times.
PRCB (printer control
board)
Drive boards
E50-10 Image control board communica-
tion error.
Initial data is not received from ICB
(image control board) within 10
seconds after power-on.
PRCB (printer control
board)
ICB (image control board)
E50-11 Image control board communica-
tion serial reception error detection
fault.
ICB (image control board)
Classification
Warning
Code
Cause Machine response
Estimated
abnormal parts