2L0-1
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 control
PWB.
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).