Epson Stylus Pro 7700 Service Manual page 134

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
113E CR
error
113F CR Lock error
PF Overload error
122A
PF Over speed error
122B
122C PF Reversing error
Driving time-out
PF
122D
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 CR Encoder Sensor. (See P.238)
Replace the Main Board Assy. (See P.228)
Replace the CR Motor. (See P.242)
Check if the Carriage Unit is correctly installed.
Check if there is some foreign material on the driving section of the
Carriage Unit.
Check the connection between the CR Encoder and the Main Board
Assy.
Check the connection between the CR Motor and the Main Board Assy.
Replace the CR Encoder Sensor. (See P.238)
Replace the CR Motor. (See P.242)
Check if there is some foreign material causing extra load between the
PF Motor and the PF roller.
Check the connection between the PF Encoder Sensor and the Main
Board Assy.
Check the connection between the PF Motor and the Main Board Assy.
Replace the PF Encoder Sensor. (See P.263)
Replace the PF Motor. (See P.264)
Replace the PF Encoder Sensor. (See P.263)
Check the connection between the PF Encoder Sensor and the Main
Board Assy.
Check if there is some foreign material causing extra load between the
PF Motor and the PF roller.
Replace the PF Encoder Sensor. (See P.263)
Replace the Main Board Assy. (See P.228)
Revision I
134
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