Folding
Folder roller motor (BK-M6) that drives the îš¿rst and second pair of fold rollers
starts about the time when the start sensor (BK-Q4) is activated. Also the fold stop
gate motor (BK-M8) moves the fold stop away a bit at that time. Slightly after the
fold stop sensor (BK-Q7) is activated, the fold stop gate motor (BK-M8) jogs the
set upwards into position. Slightly after that the fold knife motor (BK-M7) cycles. The
fold knife pushes the center of the set up through the îš¿rst pair of fold rollers. The fold
knife motor will complete its cycle and stop in the lower position when the fold knife
home position sensor (BK-Q15) activates. A booklet is now formed. When the book-
lets leading edge (the spine) is about to enter the second pair of fold rollers, the
fold roller motor (BK-M6) stops for a short time* and then starts again. The time
the booklet sits between the second pair of fold rollers depends on the speed (the
delay between each set) of the copier. The longer it sits the more compressed the
spine becomes, resulting in a atter booklet. When the set is exiting the second
pair of fold rollers the outfeed sensor (BK-Q8) activates. When the trail edge of the
set exits the booklet maker the outfeed sensor (BK-Q8) becomes clear.
Belt stacker
If the belt stacker is installed directly on the booklet maker (no trimmer installed) the
stacker motor (ST-M1 - not shown in picture) starts when the outfeed sensor (BK-
Q8) activates and runs for a short while to separate the booklets on the stacker belt.
* If fold delay is set to On the booklet sits between the second pair of fold rollers up to
about 15 seconds depending on the interval between sets. If the time interval between
the sets from the Copier is less, the booklet is fed out sooner. When the next booklet
activates the infeed sensor (BK-Q1) the fold roller motor (BK-M6) starts again.
BOOKLET MAKING PROCESS
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