Compiler Unit Assembly; Outline Of Operation - Lexmark W850n Manual

•
Sensor (punch waste box set)
–
A photo-interrupter to detect whether the waste box is properly set
–
When the punch waste box is properly set, the actuator of the box blocks the light transmission of the
sensor, which turns the sensor to "H" (+5 V dc).
•
Sensor (punch waste box full)
A photo-interrupter to detect the punch waste box is filled with punch waste.
Sensor (punch cam front)
Sensor (punch
hole select)
Sensor (punch unit HP)
Sensor (punch unit
motor encoder)

Compiler unit assembly

This section describes the operation of the compiler unit assembly that aligns the media edge transferred from
the punch unit.

Outline of operation

When media is fed onto the compiler unit assembly, tamping operation 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.
Sensor (rear
tamper HP)
Rear tamper motor
Sensor (punch carriage shift HP)
Punch unit motor
Rear tamper
Sensor (compiler
media in)
Punch carriage shift motor
Sensor (punch unit side registration 2)
Sensor (punch unit side
registration 1)
Front tamper
Sensor (front tamper HP)
Front tamper motor
4024-110
3-15
Diagnostic aids