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2-8
2.3 Original count system
(1) Original count
• This operation counts the originals. It consists of 2 operations, one is the original
feed count, and the other is the original exit count, and each operates
simultaneously.
SV029
1) When the wait solenoid is turned ON, the stopper and the weight are moved
downward and the originals on the original feed tray can move.
2) After 100msec, the reverse motor stops.
3) After 30msec, the transport belt motor begins to rotate normally.
4) After 170msec, the original feed motor begins to rotate normally and the original
is moved in the direction of the registration roller. (At this time JAM timer (1)
starts to count to 220msec.)
5) When the original arrives at the registration sensor within 2200msec of JAM
timer (1) and 100 pulse count is started, the original feed motor stops. The
original waits until it is pressed against the registration roller.
6) After the original feed motor stops and 50msec has elapsed, the original feed
motor begins to rotate in reverse, and the original is moved in the direction of
the platen glass. (At this time, the counts of JAM timer (2) to 840msec and
JAM timer (7) to 1595msec are started.)
7) When the original has passed the timing sensor within 840msec of JAM timer
(2), the original feed motor stops. (At this time, when an original is in the original
feed tray, and 50msec has elapsed, the original feed operation is repeated.)
8) When the original has passed the original exit/reverse sensor within 1080msec
of JAM timer (7), the count of the original reverse motor deceleration pulse is
started. (At this time, the count of JAM timer (5) starts to 1080msec.)
9) When the count of the original reverse motor deceleration pulse is increased,
the original reverse motor is switched from high to low speed.
10) When the original passes the original exit/reverse sensor within a
predetermined time of JAM timer (5), the transport belt motor stops and the
original reverse motor stop pulse starts to count to 307.
11) When the count of the original reverse motor stop pulse is increased to307,
the original reverse motor stops. (At this time, when all of the originals have
not yet exited, it will switch from low gear to high speed without stopping.)
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