Specifications

4-31
20
Step Check Item Result Action
1
Does “20” reappear even after HMOT
has been replaced with a new one?
YES
Change PWB-A (LCC), PWB-A (Paper
Feed Unit), PWB-A (Cassette Main
Board), or PWB-A, in that order.
21
Step Check Item Result Action
1
Does “21” reappear even after EMOT
has been replaced with a new one?
YES
Change PWB-A (LCC), PWB-A (Paper
Feed Unit), PWB-A (Cassette Main
Board), or PWB-A, in that order.
23
Step Check Item Result Action
1
Is LS1 fully operational? Check the
input data using I/O Check
YES Perform step 3 and onward.
YES
Change PWB-A (LCC), PWB-A (Paper
Feed Unit), or PWB-A (Cassette Main
Board), in that order.
2
Does the voltage across CN4A-6 on
PWB-A (LCC) and GND change to
DC5V when LS1 is blocked and to
DC0V when LS1 is unblocked?
NO Change LS1.
3
Does EMOT turn when a drawer
loaded with paper is slid into the
copier?
YES
Check gears and couplings for proper
engagement and, if they are okay,
change PWB-A.
YES
Check various parts for possible
overload and, if they are okay, change
EMOT.
4
Does the voltage across CN5A-1 on
PWB-A (LCC) and GND change from
DC0V to DC24V when step 3 is
performed again?
NO
Change PWB-A (LCC), PWB-A (Paper
Feed Unit), PWB-A (Cassette Main
Board), or PWB-A, in that order.
24
Step Check Item Result Action
1
Is LS2 fully operational?
Check the input data using I/O Check.
YES Perform step 3 and onward.
YES
Change PWB-A (LCC), PWB-A (Paper
Feed Unit), or PWB-A (Cassette Main
Board), in that order.
2
Does the voltage across CN4A-9 on
PWB-A (LCC) and GND change to
DC5V when LS2 is blocked and to
DC0V when LS2 is unblocked?
NO Change LS2.
3
Does EMOT turn when a drawer
loaded with paper is slid into the
copier?
YES
Check gears and couplings for proper
engagement and, if they are okay,
change PWB-A.
YES
Check various parts for possible
overload and, if they are okay, change
EMOT.
4
Does the voltage across CN5A-1 on
PWB-A (LCC) and GND change from
DC0V to DC24V when step 3 is
performed again?
NO
Change PWB-A (LCC), PWB-A (Paper
Feed Unit), PWB-A (Cassette Main
Board), or PWB-A, in that order.
25
Step Check Item Result Action
1
Does “25” reappear even after PWB-A
(LCC) has been replaced with a new
one?
YES
Change PWB-A (Paper Feed Unit),
PWB-A (Cassette Main Board), or
PWB-A, in that order.