Epson Stylus Pro 9900 - Page 142

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 142
Confidential
143E
Cap
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)
143F
Cap 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)
144A
Pressurizing
Pump
Overload error
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
Check the connection between the Pressurizing Unit and the Main
Board Assy.
Replace the Pressurizing Unit. (See P.275)
144B
Pressurizing
Pump
Over speed error
Detects that it is being driven at an irregularly faster speed than the
specified value just before stopping.
 Irregular load
 Encoder failure
Replace the Pressurizing Unit. (See P.275)
144C
Pressurizing
Pump
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 Pressurizing Unit and the Main
Board Assy.
Replace the Pressurizing Unit. (See P.275)
144D
Pressurizing
Pump
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