MBM FC-10, Руководство по обслуживанию

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37
12.8 Paper feed roller does not rotate.
Check external
conditions. Paper feed shaft assembly is not set
firmly at the main body.
Set the paper feed shaft assembly properly.
↓
Check the status while
the TEST mode is set. Paper feed clutch works when the
START key is pressed. Refer to “12.3 Paper is not fed though the
CHECK key is pressed.
↓
AC20V cannot be detected between pins
1 and 3 at the operation circuit board
CN-10.
The transformer is faulty.
↓
Remove the cover on
the operator side and
check the working
status while the TEST
mode is set.
DC24V cannot be detected at the
operation circuit board CN-13 when the
START key is pressed.
The operation circuit board is faulty.
↓
Paper feed clutch emits working sound
when the START key is pressed. The screws fixing the clutch and shaft are
loosened.
↓
DC24V cannot be detected at the
connector of the paper feed clutch.
Check the paper feed clutch harness.
* In case the clutch does not work at all stations, it
may be due a different cause.
↓
Paper feed clutch does not work even if it
is replaced with one for the station where
operation is normal.
The operation circuit board is faulty.
↓
Remove the cover on
the anti-operator side
and check the status
while setting the TEST
mode.
The paper feed clutch is out of order
(Resistance value of normal product is
about 140
Ω ).