Epson Stylus Pro 7700 Service Manual page 139

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
154C Cutter Reversing error
Driving time-out
154D Cutter
error
Velocity deviation
Cutter
154E
error
Cutter Lock error
154F
Ink Cartridge
13F0 ICL operation error
Cover
Valve HP
1411 Select error
Selector
Pump Pump life error
1412
TROUBLE SHOOTING
Description
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.
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
IC Cover Unlock Solenoid is not operating normally.
Valve select operating failed.
The number of pump counter reached the specified upper limit. (Pump
Motor's life (Ink System Unit's life))
Remedies for Service Call Error
Remedy
Check the connection between the Cutter Unit and the Main Board
Assy.
Replace the Cutter Unit. (See P.257)
Replace the Main Board Assy. (See P.228)
Replace the Cutter Unit. (See P.257)
Replace the Main Board Assy. (See P.228)
Check if there is some foreign material causing extra load on the Cutter
Unit.
Check the connection between the Cutter Unit and the Main Board
Assy.
Replace the Cutter Unit. (See P.257)
Check the connection between the Cartridge Cover Sensor and the
Main Board Assy.
Replace the Cartridge Cover Sensor (L/R) with new ones.
P.226)
Replace the Main Board Assy. (See P.228)
Check the connection between the Ink System Unit and the Main Board
Assy.
Replace the Ink System Unit. (See P.266)
Replace the Main Board Assy. (See P.228)
Replace the Ink System Unit (See P.266), and clear the counter using
the Service Program.
Revision I
(See P.225,
139
Confidential