Epson LQ-300 Service Manual page 92

Troubleshooting
4. Abnormal paper
START
when turned manual
smoothly
with the power off?
Check the resistance of
the PF motor and check
the PF motor drivers. If
anything is bad, replace.
fault corrected?
Replace the MAIN
Board Assembly.
fault corrected?
5-8
feed.
NO
Is the
YES
NO
N
NO
Is the
YES
Figure 5-7. Flowchart -4
I YES
N
See the troubleshooting
items for the printer
mechanism ((Section 5.4).
NO Is the
fault corrected?
YES
N