2A3/4
3-5-3
Defective en-
gine ROM IC.
Defective main
PCB.
Defective main
PCB.
Poor contact of
the connector
terminals.
Defective main
PCB or printer
board.
Replace the engine ROM IC
on the main PCB and check
for correct operation.
Replace the main PCB and
check for correct operation.
Replace the main PCB and
check for correct operation.
Check the connection of con-
nector CN4 on the main PCB
and the connector on the
printer board. Repair or re-
place if necessary.
Replace the main PCB or
printer board and check for
correct operation.
Code
Contents
Remarks
Causes
Check procedures/
corrective measures
Communication problem
between the engine PCB
and main PCB
• There is no reply after 20
retries at communication.
Scanner communication
problem
• There is no reply after 5 re-
tries at communication.
Printer board communica-
tion problem*
2
•There is no reply after 20
retries at communication.
C022
C023
C024
*2: Optional.
Summary of Contents for Ri 4230
Page 3: ...SERVICE MANUAL Ri 4230 5230 ...
Page 13: ...4230 5230 S M MCA THEORY AND CONSTRUCTION SECTION I I Theory and Construction Section ...
Page 14: ...1 1 5 2A3 4 CONTENTS 1 1 Specifications 1 1 1 Specifications 1 1 1 ...
Page 100: ...4230 5230 S M MCA ELECTRICAL SECTION II II Electrical Section ...
Page 119: ......
Page 138: ......
Page 159: ...4230 5230 S M MCA III Set Up and Adjustment Section III SET UP AND ADJUSTMENT SECTION ...
Page 448: ...2A3 4 3 6 3 25 Toner scatters at the leading edge of the image See page 3 6 17 ...