Ricoh FT8880 Service Manual page 13

RDH 5 June 1992
16. RDH
16.1 OVERVIEW
16.1.1 No Inversion Original Cycle
[E] [B]
[A]
[C]
[J] [I]
[D]
[F]
[G]
[H]
When the start key is pressed, the blower motor start to rotate. It supplies air
to the air knife and draws air from the vacuum section. Sheets are separated
at the leading edge [A] of the paper stack. The air comes from the nozzle [B]
and the bottom sheet of the stack paper is held against the feed-in belts [C]
by air suction [D]. The feed motor drives the feed drive [E], transport [F], and
right turn [G] rollers. The bottom sheet of the paper is delivered through the
feed drive, transport, right turn rollers to the registration section [H] and is
stopped. To stop the original sheet at the proper position in the registration
section, the feed motor rotation speed is reduced by half when the 2nd
transport sensor [I] detects the leading edge of the original. The belt drive
motor then starts to rotate the transport belt [J] to direct the sheet of paper
onto exposure glass. At the same time, the next original is fed.
2-2