Timing Chart No. 1; Timing Chart No. 2; Timing Chart No. 3; Timing Chart No. 4 - Ricoh A741 Service Manual

1. Paper jam in the paper feed section (1st roll unit): J-01
When the new paper roll is wound up (first paper feed), the registration switch (RSW)
does not turn on within 2720 ms after the upper feed clutch (FCL-U) has turned on.
FCL-U
RSW
When the paper roll need not be wound up (from the second sheet), the registration
switch (RSW) does not turn on within 936 ms after the upper feed clutch (FCL-U) has
turned on.
FCL-U
RSW
2. Paper jam in the paper feed section (2nd roll unit): J-02
When the new paper roll is wound up (first paper feed), the registration switch (RSW)
does not turn on within 3632 ms after the middle feed clutch (FCL-M) has turned on.
FCL-M
RSW
When the paper roll need not be wound up (from the second sheet), the registration
switch (RSW) does not turn on within 936 ms after the middle feed clutch (FCL-M) has
turned on.
FCL-M
RSW
2720 ms
Timing chart 2-2-1
936 ms
Timing chart 2-2-2
3632 ms
Timing chart 2-2-3
936 ms
Timing chart 2-2-4
340
Off
On
Off
On
Off
On
Off
On
Off
On
Off
On
Off
On
Off
On
2-2-3