Epson Stylus Photo 950, Service Manual

Page: 83 / 191

EPSON Stylus PHOTO 950 Revision A
TROUBLESHOOTING Overview 83
3.1.6.5 Carriage Operation Abnormal
This section describes the procedures for solving the problem when a fatal error occurs
as soon as the power is turned on and the printer stops operating. The methods of
solving this problem are given below in order starting from the easiest, so refer to them
for the checking and working procedures.
2 Are the ASF
transmission gear
and the
combination gears
18.4 and 32.8 at
the ASF engaged
correctly? When the combination gear is gently turned clockwise and
counterclockwise by hand, check that the ASF drive gear also
moves. To check a whole revolution, set the ASF change lever to
the active position and turn the timing belt or the PF motor pinion
gear to check the operation.
Table 3-18. PF Motor Driver Abnormal 2
Step Check Point Remedy
ASF Drive Gear
Combination Gear
18.4, 32.8
Table 3-19. Carriage Operation Abnormal
Step Check Point Remedy
1 Has PG adjustment
been carried out
correctly? (Service
problem) While referring to "Chapter 5 Adjustment", carry out PG
adjustment if any parts or units which require PG
adjustment to be done have been replaced or removed.
2 Does the carriage lock
lever operate
normally? If the carriage lock lever cannot be operated when it is still
in the active position, the carriage cannot move in the
printing area direction. When the power is turned on, check
that the carriage lock lever is moved to the unlock position
before the carriage starts moving.
[Cause 1]
The carriage lock lever is not correctly protruding from the
notch in the EJ frame.
[Cause 2]
The EJ roller shaft is not correctly secured by bushing 5, or
the PF motor drive is not being transmitted correctly.