Epson Stylus Pro 9900 - Driving Time-Out Error; Lock Error; Velocity Deviation Error

Epson Stylus Pro 7700/7710/7700M/7710M/7900/7910/9700/9710/9900/9910/WT7900/WT7910/9890/9908/7890/7908 Revision I
TROUBLE SHOOTING Remedies for Service Call Error 144
Confidential
148C
Wiper Reversing error
Detects that it is being driven in the opposite direction to the specified
driving direction.
 The polarity of encoder cable is opposite.
 The polarity of motor cable is opposite.
 Encoder failure
 Irregular load
Check the connection between the Ink System Unit and the Main Board
Assy.
Replace the Ink System Unit. (See P.266)
148D
Wiper
Driving time-out
error
Detects that the driving period is irregularly long.
 Irregular load
 Firmware becomes out of control.
Replace the Main Board Assy. (See P.228)
148E
Wiper
Velocity deviation
error
Detects that it is being driven at an irregularly faster speed than the
specified value.
 Irregular load
 Encoder failure
 Motor driver failure
 Motor failure
Replace the Ink System Unit. (See P.266)
Replace the Main Board Assy. (See P.228)
148F
Wiper Lock error
Detects that it is being driven at an irregularly slower speed than the
specified value.
 Encoder cable is damaged.
 Motor cable is damaged.
 Irregular load
 Encoder failure
 Motor failure
Check the connection between the Ink System Unit and the Main Board
Assy.
Replace the Ink System Unit. (See P.266)
1494
Ink Selector Ink selector error
Ink select operation failed.
 Ink Selector Motor is broken.
 Ink Selector Sensor is broken.
 Ink Selector is overloaded.
Check the connection between the Ink Selector and the Main Board
Assy.
Replace the Ink Selector. (See P.300)
Replace the Main Board Assy. (See P.228)
1496
Ink Selector
Ink selector sensor
error detection
Ink select operation failed.
 Ink Selector Sensor is broken.
Check the connection between the Ink Selector and the Main Board
Assy.
Replace the Ink Selector. (See P.300)
Replace the Main Board Assy. (See P.228)
1497
Ink Selector
Switching time-out
error
The ink selecting operation does not end even after the specified period
of time has passed because the Ink Selector (the sensor or motor) is
broken.
Replace the Ink Selector. (See P.300)
149D
Ink Selector
Driving time-out
error
Detects that the driving period is irregularly long.
 Irregular load
 Firmware becomes out of control.
Replace the Main Board Assy. (See P.228)
Error Code
Error Details
Description Remedy
Failed Part Error Name