Ricoh FT7770 Service Manual page 573

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Service Call 11 -
o
After the Start key is pressed and the scanner motor has been
activated, the scanner does not reach the reference point
within 0.2 seconds.
o
The scanner reaches the reference point prior to the
specified time.
o
After the scanner motor has turned on, the scanner does not
reach the return position within 1.2 seconds.
o Turn the main switch off.
o Replace the Scanner Motor
o Turn the main switch on.
o Press the Start key.
If the operation correct is
o Turn the main switch off.
o Replace the main board.
o Turn the main switch on.
o Press the Start key.
If the operation is still not correct:
o Turn the main switch off.
o Replace the scanner motor.
o Turn the main switch on.
o Check the operation.
o Reinstall the old main board to double check whether it is
functional or not.
Scanner Velocity
control board.
still not correct:
13-49
30
April, '89

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