Detailed Description - Ricoh A230 Service Manual

ORIGINAL FEED-IN PREPARATION MECHANISM

2. DETAILED DESCRIPTION

2.1 ORIGINAL FEED-IN PREPARATION MECHANISM
- Original Stopper Release -
[D]
[E] [F]
[C]
- Pick-up Roller Release -
[B]
[G] [K]
[A]
[H]
A680D500.WMF
[J]
[I]
A680D501.WMF
When an original is inserted, it is stopped at the original stopper [A] and the original
set sensor [B] turns on.
Original Stopper Release (top diagram):
When the print key is pressed, the pick-up motor [C] turns on, the cam [D] turns
and the original stopper is lifted to let the original pass. At this time, the one-way
clutch in gear [E] prevents the pick-up roller release mechanism from moving, and
the pick-up roller remains up.
Pick-up Roller Release (bottom diagram):
When cam [D] turns, the original stopper HP sensor [F] is turned on. A short time
later, the pick-up motor [C] turns in reverse, the cam [G] rotates away from the
pick-up roller release lever [H]. The lever then rises and the pick-up roller [I] drops
onto the original. The one-way clutch in gear [J] prevents the original stopper from
dropping. When the original reaches the entrance sensor, the pick-up motor
reverses again, and the pick-up roller lifts up until the pick-up roller home position
sensor [K] detects the actuator.
SM A230/A231/A232
12-7