Ricoh G179 Service Manual page 555

Component Layout
No. Component
Lower Tray Full
S34
Sensor - Front
Solenoids
Proof Junction Gate
SOL1
Solenoid
Stapling Tray Junction
SOL2
Gate Solenoid
Positioning Roller
SOL3
Solenoid
Stapling Edge
SOL4 Pressure Plate
Solenoid
Booklet Pressure
SOL5
Roller Solenoid
SM
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sensors are used to detect when the tray is full and stop
the job. (The lower tray is stationary. At tray full, the job
halts until booklets are removed from the lower tray.)
This front sensor is the higher sensor of the lower tray
full sensor pair. Two actuators are attached to the
actuator arm that touches the top of stapled and folded
booklets as they feed out. The on/off combinations of
the two sensors are used to detect when the tray is full
and stop the job. (The lower tray is stationary. At tray
full, the job halts until booklets are removed from the
lower tray.)
Opens and closes the proof tray junction gate. When
the solenoid switches on, it opens the gate and paper is
diverted to the proof tray. When this gate is closed, the
paper goes straight to the upper tray. I
Directs paper to the stapling tray. When this solenoid is
on, paper feeds straight through. When this solenoid is
off, paper feeds to the stapler tray below.
Engages the stapler transport motor and the positioning
roller of the stapling tray. The positioning roller pushes
each sheet down against the bottom fence to align the
bottom the stack for stapling. (The jogger fences align
the sides.)
Operates the pressure plate of the stapling unit. The
pressure plate presses down the edge of stack in the
stapling tray so it is tight for stapling.
When the paper stack in the stapling tray feeds to the
folding unit, this solenoid turns on and operates the
roller that pushes on the surface of the stack to flatten it.
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Function
B804/B805