Epson Stylus COLOR 800 Service Manual page 161

Table 5-9. Repair of the C202 MAIN Board Component (3)
Symptom Description
Paper is not fed PF motor does
properly. not operate
properly.
ASF does not load ASF / pump motor
paper, or the is not driven
pump mechanism properly.
is not driven.
Rev. A
Cause
IC16 or IC2
Check that the PF motor phase
is defective.
changeover waveform output
from the IC2 to the IC16 is as
shown below.
IC6 or IC2 is
Check that the drive waveform
defective.
for each phase output from the
IC6 is as shown below. The
figure below represents the
waveforms for the phase A and
phase -A.
IC1 or IC2 is
Check that the ASF/pump motor
defective.
phase changeover waveform
output from the IC2 to the IC6 is
as shown below.
Check points
Troubleshooting
Solution
Replace the
MAIN board.
Replace the IC6.
Replace the
MAIN board.
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