Diagnostic aids 3-91
7558-xxx
A photo-interrupter sensor that detects whether the punch waste box is filled with punch waste.
Compiler unit assembly
This section describes the operation of the compiler unit assembly which aligns the media edge transferred from
the punch unit.
Outline of operation
When media is fed onto the compiler unit assembly, tamping is performed to align the media edge in the media
width direction.
When ejecting stapled sets of media to the stacker media bin, if they are stacked in the stacker media bin with
the same staple position, the height of the stapled portion will increase. This will cause improper compiling of
media due to butting of the following media. To prevent such improper compiling, offsetting is required by
shifting the staple position between sets of media.
Capacity of compiler unit assembly
Media volume that can be stacked on the compiler unit assembly is limited as shown in the table below.
The number of sheets depends on whether media is stapled or not, as well as on media size.
If the number of sheets of one set to be stapled exceeds the limit, the exceeding sheets are not stacked on the
compiler unit assembly, and are forcibly ejected to the stacker media bin without being stapled.
Sensor (punch carriage shift HP)
Punch carriage shift motor
Sensor (punch unit side registration 2)
Punch unit motor
Sensor (punch unit
motor encoder)
Sensor (punch unit HP)
Sensor (punch
hole select)
Sensor (punch cam front)
Sensor (punch unit side
registration 1)
Rear tamper
Front tamper
Sensor (front tamper HP)
Front tamper motor
Sensor (compiler
media in)
Rear tamper motor
Sensor (rear
tamper HP)
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