Description of Operation
16
Plockmatic PowerSquare™ 160 - Service Training Workbook
• The form roller is transported on a carriage that runs along the carriage guide.
The carriage drive is by a stepper motor. When the carriage reaches the end of
the carriage guide, either the form roller end A or form roller end B sensor is
operated. If the carriage is stopped before either of the sensors is reached, the
carriage returns to the start position.
• The form roller is turned by a gear wheel that engages with a rack.
• When the spine is formed, the carriage stops at one end of the carriage guide
and the spine form clamp is released. The fold rollers rotate to drive the book
through to the trimmer infeed conveyors.
• An optical sensor in the fold area sees when paper is present. If the sensor stays
covered, then a jam is indicated.
3.7
Trim
Figure 13. Trim stop components
• The book is driven between two facing sets of conveyors in the trimmer infeed
onto the trim latch. The distance of the trim latch from the trimmer blade is
calculated by the PSQ160 according to the size of the job. The operator can
change the amount of trim from the touch screen if necessary. The trim axis is
adjusted by a stepper motor.
A
900-258 interconnect PCB
B
Trim latch drive motor
C
Trim latch home sensor
D
900-305 interconnect PCB
E
Trim axis drive motor
F
Trim axis home sensor
A
B
C
D
E
F
Summary of Contents for Morgana PowerSquare 160
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