Minolta Di551 Service Manual page 517

ELECTRIC PARTS LIST
Warning
Classification
Code
Image con- E46-91
trol abnor-
E46-99
mality
Communica- E50-01
tion abnor-
mality
E50-02
E50-03
E50-04
E50-05
E50-10
E50-11
Cause
The header read address is illegal.
E-RDH memory initialization error
E-RDH memory may not be con-
nected properly.
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.
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.
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.
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.
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 infor-
mation error occurred four consecu-
tive times although a resent request
had been issued three times.
Image control board communication
error.
Initial data is not received from ICB
(image control board) within 10 sec-
onds after power-on.
Image control board communication
serial reception error detection fault.
Machine response
If copy operation is
being performed, the
machine stops after
paper ejection.
RL1 (main) is turned
OFF.
The machine stops
immediately. RL1
(main) is turned OFF.
4-48
Estimated
abnormal parts
ICB (image control board)
Expansion memory
PRCB (printer control board)
PRCB (printer control board)
Drive boards
PRCB (printer control board)
ICB (image control board)
ICB (image control board)