Epson Stylus Pro 7700 Service Manual page 136

Epson Stylus Pro 7700/7710/7700M/7710M/7900/7910/9700/9710/9900/9910/WT7900/WT7910/9890/9908/7890/7908
Error Details
Error Code
Failed Part Error Name
Velocity deviation
151E APG
error
151F APG Lock error
Rewind Overload error
152A
152B Rewind Over speed error
152C Rewind Reversing error
Driving time-out
152D Rewind
error
TROUBLE SHOOTING
Description
Detects that it is being driven at an irregularly faster speed than the
specified value.
Irregular load
Encoder failure
Motor driver failure
Motor failure
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
The electric current flowing when driving the motor is irregularly large.
Encoder cable is damaged.
Motor cable is damaged.
Irregular load
Encoder failure
Motor failure
Detects that it is being driven at an irregularly faster speed than the
specified value just before stopping.
Irregular load
Encoder failure
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
Detects that the driving period is irregularly long.
Irregular load
Firmware becomes out of control.
Remedies for Service Call Error
Remedy
Replace the APG Motor. (See P.243)
Replace the Main Board Assy. (See P.228)
Check if there is some foreign material causing extra load between the
APG Motor and the carriage unit.
Check the connection between the APG Motor Sensor and the Main
Board Assy.
Replace the APG Motor. (See P.243)
Check if there is some foreign material causing extra load on the
Rewind Unit.
Check the connection between the Rewind Unit and the Main Board
Assy.
Replace the Rewind Motor. (See P.255)
Replace the Rewind Motor. (See P.255)
Check the connection between the Rewind Unit and the Main Board
Assy.
Replace the Rewind Motor. (See P.255)
Replace the Main Board Assy. (See P.228)
Revision I
136
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