Toshiba 4580, Руководство по обслуживанию

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6570/5570 ADF 16 - 22 Mar. 1999 © TOSHIBA TEC
3) From restart of No.1 side transport to exit sensor ON in the double-sided mode
The number of pulses equivalent to twice the distance from the leading edge position of the original
being fed when the original being fed is paused on the original glass and standing by for exit of the
output original to be completed during No.1 side transport in the double-sided mode is set as the jam
pulse.
This is set when transport of the original being fed is restarted after exit of the output original is
completed during transport of the No.1 side.
4) From start of No.2 side transport to exit sensor ON in the double-sided mode
The number of pulses equivalent to twice the distance from the trailing edge position of the original to
the exit sensor ON position when the shortest original (personal check) is set at the exposure posi-
tion is set as the jam pulse.
This is set when transport of the No.2 side is started.
16.5.3 Exit/Reversal jams
[1] Exit sensor accumulation jam
1) From exit sensor ON to exit sensor OFF at original exit
The number of pulses equivalent to twice the length of the longest original (LD) is set as the jam
pulse.
This is set at the point when the trailing edge of the output original has arrived at the exit sensor
during original exit.
2) From start of reversal operation to exit sensor OFF in the double-sided mode
The number of pulses from start of reversal operation (reverse rotation of the transport belt) to com-
pletion of feed in the double-sided mode is set as the jam pulse.
When the exit sensor turns ON at completion of feed in the double-sided mode, this is judged to be
the exit sensor accumulation jam.
In the double-sided mode, the motor is driven and is stopped by a specified number of pulses (number
of feed pulses up to the original stopper position) after start of reversal operation (reverse rotation of
the transport belt). Accordingly, in the same way as detection of other accumulation jams, the exit
sensor accumulation jam pulse is set at the start of reversal operation (reverse rotation of the trans-
port belt), and occurrence of an accumulation jam is judged by the timer counting up the jam pulse.
If this method is adopted, the feed pulse count is counted and the motor stops before the jam pulse
count is counted. So, the exit sensor accumulation jam does not occur even if originals accumulate at
the exit sensor section.
For this reason, when the exit sensor turns ON at completion of double-sided feed, the exit sensor
accumulation jam is judged. This method is adopted to detect jams.