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(2) ADF (18 cpm copier)
The DF consists of the components shown in Figure. It conveys the original across the DF contact glass in
synchronization with the copier scanning operation.
During primary original feed, the original feed motor (OFM) turns on and the DF forwarding pulley and DF original
conveying roller feed originals one by one. Each original is then conveyed to the upper and lower registration rollers by
the DF original feed pulley and DF separation pulley.
During secondary original feed, the original feed motor (OFM) turns on and the upper and lower registration rollers
convey the original onto the DF contact glass. The DF upper eject roller and DF lower eject roller then eject the original
to the original eject cover.
!
&
5
@
6
1 DF forwarding pulley
2 DF original feed pulley
3 DF separation pulley
4 DF original conveying roller
5 DF upper registration roller
6 DF lower registration roller
7 DF upper eject roller
8 DF lower eject roller
9 Original table
1
^
4
0
2
7
3
# %
8
*
Figure 2-1-28 ADF
OFM
DFTSW
Figure 2-1-29 ADF block diagram
9
$
0 Lift guide
! Original feed guide
@ Original conveying guide
# Original scanning guide
$ Upper eject guide
% Lower eject guide
^ DF original detection switch (DFODSW)
& DF timing switch (DFTSW)
* DF contact glass
DFODSW
MPCB
2A1/2
2-1-23
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