2GZ/2G1
1-4-18
1-4-2 Self-diagnosis
(1) Self-diagnostic function
This unit is equipped with a self-diagnostic function. When a problem is detected, printing is disabled and the problem dis-
played a number, indicating the nature of the problem.
A message is also displayed requesting the user to call for service.
After removing the problem, the self-diagnostic function can be reset by turning safety switches off and back on.
(2) Self diagnostic codes
Code Contents
Remarks
Causes Check procedures/corrective measures
0150 Backup memory device problem
(Engine PWB)
Reading from or writing to EEPROM
cannot be performed.
Defective engine
PWB.
Replace the engine PWB and check for cor-
rect operation.
Device damage of
EEPROM.
Contact the Service Administrative Division.
0160 Backup memory data problem
(Engine PWB)
Reading data from EEPROM is abnor-
mal.
Read and write data does not match five
times continuously.
Defective engine
PWB.
Replace the engine PWB and check for cor-
rect operation.
Device damage of
EEPROM.
Contact the Service Administrative Division.
1010 Upper lift motor error
When cassette 1 is inserted, upper lift
limit switch does not turn on within 12 s
of upper lift motor turning on.
Poor contact in the
connector termi-
nals.
Check the connection of connector of upper
lift motor and the connector YC13 on the
engine PWB, and the continuity across the
connector terminals. Repair or replace if
necessary.
Broken gears or
couplings of upper
lift motor.
Replace upper lift motor.
Defective upper lift
motor.
Check for continuity across the coil. If none,
replace upper lift motor.
Defective upper lift
limit switch.
Check if YC13-B9 on the engine PWB goes
low when upper lift limit switch is turned off.
If not, replace upper lift limit switch.
Poor contact in the
connector termi-
nals.
Check the connection of connector of upper
lift limit switch and the connector YC13 on
the engine PWB, and the continuity across
the connector terminals. Repair or replace if
necessary.
Defective engine
PWB.
Replace the engine PWB and check for cor-
rect operation.