Riso ComColor IS900C Instruction Manual page 156

S98-0022-3 S98-0018-2
Engine PCB has "Watch dog timer" device which checks the
processing condition. If this device detects CPU hung-up etc, the
Engine PCB will reset
S98-0018-1 Hung-up due to system high load etc
S98-0018-2 Hung-up due to unstable power supply to Engine PCB
If Engine PCB resets CPU during the printing, signal
communication between PMS and Engine PCB will be stopped.
Finally S98-0022-3 will be displayed.
Majority of this symptom comes from short circuit of wire harness.
Especially Finisher inner harness might touch on the motors.
As for the S98-0022-1 or 2, they are basically another issues.
(IP-PCB has the highest possibility for these errors)
The variation code such as
firmware V10.16. If you face S98-0022 error on the previous firmware, you
should update the firmware to recognise the variation code.
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the processing automatically.
S98-0022-"1" / "2" / "3" have been added since
Check points
Maintenance
PCB