Muratec MFX-2500 Field Engineering Manual page 229

Symptom Step
4
5
6
7
Paper is not
taken up at
8
all.
Paper is at a
stop before
the Paper
Feed/Separat
or Rolls.
9
10
11
12
Check Item
Is PPS1 fully operational?
Check the input data using I/O
Check.
Does the voltage across
CN3A-2 on PWB-A (LCC) and
GND change from LOWto
HIGHwhen PPS1 is blocked?
Is paper fed up to S1 when
paper is loaded in Lift 2 only
and the drawer is slid into the
copier?
Check P2CL for operation.
Does the voltage across
CN7A-6 on PWB-A (LCC) and
GND change from DC24V to
DC0V when step 6 is
performed again?
Check P1CL for operation.
Does the voltage across
CN7A-8 on PWB-A (LCC) and
GND change from DC24V to
DC0V when step 6 is
performed again?
Is S1 fully operational?
Check the input data using I/O
Check.
Does the "S1S" input signal
change from 0 to 1 when the
drawer loaded with paper is
slid into the copier?
Does the voltage across
CN3A-5 on PWB-A (LCC) and
GND change from LOWto
HIGHwhen step 9 is
performed again?
Is the Paper Feed Roll or
Separator Roll deformed,
worn, or dirty with paper dust?
Check BCL for operation.
Does the voltage across
CN7A-2 on PWB-A (LCC) and
GND change from DC24V to
DC0V when the Start key is
pressed?
4-15
Result Action
YES Perform steps 6 and onward.
Change PWB-A (LCC), PWB-
A (Paper feed unit), or PWB-A
YES
(Cassette Main Board), in that
order.
NO Change PPS1.
YES Perform steps 8 and onward.
Check various parts for
YES possible overload and, if they
are okay, change P2CL.
Change PWB-A (LCC), PWB-
A (Paper feed unit), PWB-A
NO
(Cassette Main Board), or
PWB-A, in that order.
Change PWB-A (LCC), PWB-
A (aper feed unit), PWB-A
NO
(Cassette Main Board), or
PWB-A, in that order.
YES Perform steps 11 and onward.
Change PWB-A (LCC), PWB-
A (Paper feed unit), or PWB-A
YES
(Cassette Main Board), in that
order.
NO Change S1.
Clean or change the Paper
YES
Feed Roll or Separator Roll.
Check various parts for
possible overload and, if they
YES
are okay, change P1CL or
BCL.
Change PWB-A (LCC), PWB-
A (Paper feed unit), PWB-A
NO
(Cassette Main Board), or
PWB-A, in that order.