Fuji Xerox Phaser 5500, Service Manual

Page: 49 / 623

Theory of Operation 2-9
Finisher/Stacker
What follows is a summary of the output path through the Finisher. A detailed
description of the Finisher paper path appears in Book 2, Chapter 2.
Paper fed from the Horizontal Transport is drawn into the Finisher by the Entrance
Roller driven by the Finisher Transport Motor. The paper next passes through the
Punch, if installed, then is directed either up or down by the Transfer Gate. The
Transfer Gate is switched by the Transfer Gate Solenoid controlled by signals
received from the Engine Logic Board.
Paper output to the Stacker Upper Tray is directed upwards by the Transfer Gate and
drawn along the paper path by the two Transfer Rollers. The paper exits the Finisher
by being driven into the Stacker Upper Tray by the Top Exit Rollers.
Paper punched, stapled, offset, or sent to the Stacker Lower Tray is directed down by
the Transfer Gate. For print jobs not receiving any Finisher processing, paper travels
across the Buffer Roller, Buffer Gate, and is drawn out of the Finisher into the Stacker
Lower Tray by the Lower Exit Rollers. For Punch operations, the paper is drawn
across the Buffer or Transfer Rollers, then reversed to back into the Punch guide.
After the sheet is punched, it moves out of the Punch and depending on the job, either
moves upward to the Stacker Upper Tray or continues to the Stapler. For compiled,
stapled, or offset print jobs, the Buffer Gate is raised by the Buffer Gate Solenoid
directing the sheet around the circumference of the Buffer Roller and into the Buffer
Path. The first sheet of each set is held in the Buffer Path until the second sheet arrives
at the Buffer Gate. When the second sheet arrives, both sheets are drawn towards the
Exit Clamp by the lower Exit Rollers and are clamped and either ejected into the
Stacker Lower Tray or loaded into the Compiler Tray for tamping and offset.
Gate Sensor
Top Exit Rollers
(Driven by Exit Motor)
Lower Exit Rollers
(Driven by Exit Motor)
Transfer Rollers
(Driven by Regi Motor)
Buffer Roller
(Driven by Regi Motor)
Transfer Gate
s5500-026
Buffer Gate
Sub Paddle
(Driven by Finisher Transport
Motor)
Main Paddle
(Driven by Finisher Transport Motor)
Eject Roller Shaft
(Driven by Eject Motor)
Entrance Rollers
(Driven by Finisher
Transport Motor)
Eject Clamp
(Driven by Eject Clamp Motor)