Epson Stylus COLOR 300 Service Manual page 35

Symptom Condition
Paper does Drive signals
not advance are not
normally. output
correctly.
Rev. A
Cause
CPU (IC2) is Is the signal waveform correcr at pin 7/8
defective of IC2?
PF Motor Is the signal waveform correct at pin
driver (IC16) 14/17/20/23 of IC16?
is defective
Chapter 5 Troubleshooting
Checkpoint Solution
Replace IC2
Correct:
Replace PF
Motor
Incorrect:
Replace IC16
5-3