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7. Troubleshooting
Error Messages of Maintenance Unit
Error
code
Message Meaning Solution
CA Cap Driver Overheat
The operation stopped because
the Cap Driver has overheated.
**
CC
Wiper Cleaner
Cassette error
Wiper Cleaner Cassette is coming
off.
**
CE Communication error
Communication error other than
FE, OE and PE
**
CI Cap initialization error
The Cap initialization was not
made before moving the Cap.
**
CO Cap error
The Cap was in the raised position
when moving the Wiper.
**
CP Cap Sensor error
Failure of the Cap Sensor or Cap
Motor
**
FE Data framing error
Serial communication/data framing
error occurred.
**
IE Internal error Incorrect program behavior **
OB Cap obstacle error
An obstacle prevents the Cap from
being raised.
**
OE Data overrun error
Serial communication/buffer
overrun occurred.
**
PA Pump Driver Overheat
The operation stopped because
the Pump Driver has overheated.
**
PE Parity error
Serial communication/parity error
occurred.
**
PI
Pump initialization
error
The Pump initialization was not
made before operating the Pump.
**
PN
The number of
arguments is different.
The number of arguments is
abnormal.
**
PS Pump Sensor Error
Failure in the Pump sensor or
Pump motor
**
RT Response timeout
Time-out of waiting for the
Maintenance Unit response
**
SH Ink Sensor error Failure in the Ink Sensor harness **
SR Ink Sensor error Defect in the Ink Sensor reading **
VC Valve error
The valve is closed when moving
the Cap.
**
VO Valve error
The valve is open when operating
the Pump.
**
WA Wiper Driver Overheat
The operation stopped because
the Wipe Driver has overheated.
**
WI
Wiper initialization
error
The Wiper initialization was not
made before moving the Wiper.
**
WS Wipe Sensor error
Failure in the Wiper Sensor or
Wiper Motor
**
GT-782
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