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Symptom
Paper is not fed
properly.
ASF does not load
paper, or the
pump mechanism
is not driven.
Rev. A
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Table 5-9. Repair of the C202 MAIN Board Component (3)
Description
Cause
PF motor does
IC16 or IC2
not operate
is defective.
properly.
ASF / pump motor
IC6 or IC2 is
is not driven
defective.
properly.
IC1 or IC2 is
defective.
Check points
• Check that the PF motor phase
changeover waveform output
from the IC2 to the IC16 is as
shown below.
• Check that the drive waveform
for each phase output from the
IC6 is as shown below. The
figure below represents the
waveforms for the phase A and
phase -A.
• Check that the ASF/pump motor
phase changeover waveform
output from the IC2 to the IC6 is
as shown below.
Troubleshooting
Solution
Replace the
MAIN board.
Replace the IC6.
Replace the
MAIN board.
5-15

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Troubleshooting

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