2H4
1-4-3
(2) Self diagnostic codes
Code Contents
Remarks
Causes Check procedures/corrective measures
0100 Backup memory device error Defective flash
memory (U10).
Replace the control PWB (See page 1-5-
19).
Defective control
PWB.
Replace the control PWB (See page 1-5-
19).
0110 Backup memory data error Defective flash
memory (U10).
Replace the control PWB (See page 1-5-
19).
Defective control
PWB.
Replace the control PWB (See page 1-5-
19).
0120 MAC address data error Defective flash
memory (U10).
Replace the control PWB (See page 1-5-
19).
0150 Control PWB EEPROM error
Detecting control PWB EEPROM (U300)
communication error.
Improper installa-
tion control PWB
EEPROM (U300).
Check the installation of the EEPROM
(U300) and remedy if necessary (See page
1-5-19).
Defective control
PWB.
Replace the control PWB (See page 1-5-
19).
0170 Billing counting error Defective control
PWB.
Replace the control PWB (See page 1-5-
19).
0420 Paper feeder communication error
Communication error between control
PWB and optional paper feeder.
Improper installa-
tion paper feeder.
Follow installation instruction carefully again.
Defective harness
between control
PWB (YC318) and
paper feeder inter-
face connector, or
improper connec-
tor insertion.
Reinsert the connector. Also check for conti-
nuity within the connector harness. If none,
remedy or replace the harness.
Defective control
PWB.
Replace the control PWB (See page 1-5-
19).
Defective harness
between PF main
PWB (YC5) and
paper feeder inter-
face connector, or
improper connec-
tor insertion.
Reinsert the connector. Also check for conti-
nuity within the connector harness. If none,
remedy or replace the harness (Refer to the
service manual for the paper feeder).
Defective PF main-
PWB.
Replace the PF main PWB (Refer to the ser-
vice manual for the paper feeder).