3S3
1-3-3
1-3-2  Self-diagnostic function
(1) Self-diagnostic function
This printer is equipped with self-diagnostic function. When a problem is detected, the printer stops printing and display an 
error message on the operation panel. An error message consists of a message prompting a contact to service personnel,
total print count, and a four-digit error code indicating the type of the error. (The display varies depending on the type of 
the error.)
(2) Self diagnostic codes
Code Contents
Remarks
Causes Check procedures/corrective measures
1140 Lift motor ascent error
Tray top position sensor does not turn 
on.
Lift motor lock error occurred 3 times.
Defective tray top 
position sensor.
Replace the tray top position sensor.
Defective harness 
between tray top 
position sensor 
and PF main PWB 
(YC5), or improper 
connector inser-
tion.
Reinsert the connector. Also check for conti-
nuity within the connector harness. If none, 
remedy or replace the harness.
Defective PF main 
PWB.
Replace the PF main PWB.
1150 Lift motor descent error
Tray bottom position sensor does not 
turn on.
Lift motor lock error occurred 3 times.
Defective tray bot-
tom position sen-
sor.
Replace the tray bottom position sensor.
Defective harness 
between tray bot-
tom position sen-
sor and PF main 
PWB (YC7), 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 PF main 
PWB.
Replace the PF main PWB.
1900
Paper feeder 1/BPF paper feeder 
EEPROM error
When writing the data, the write data and 
the read data is not in agreement.
Defective PF main 
PWB.
Replace the PF main PWB or the BPF main 
PWB (Refer to the service manual for the 
paper feeder).
Device damage of 
EEPROM.
Contact the Service Administrative Division.
Error code Total print
Call service
    1140:012345
Total print
Errer code