Theory of Operation Ver. 8.0 Jun. 2008
20. Paper exit section
14
7
Composition/Operation
20.3 Operation
20.3.1
Switchback control
• When the fusing is completed on the first side of duplex print, switchback snap is
switched down to transport the sheet to the switchback part. When the fusing is com-
pleted on the sheet of single print or second side of duplex print, the sheet is transported
to the exit section.
• The paper transported to the switchback part stops at the switchback position and then
the switchback roller turns around to transport the sheet to the duplex section.
• Before the switchback roller starts to turn the opposite direction, the exit switch gate is
switched to the upward direction.
A00JT2C235AA
Exhaust sensor (PS39)
Switchback section
Switchback position
When the exit part are
transported
Duplex section
Fusing
section
Paper exit roller 1
paper exit roller
ADU transport roller 1
Paper exit section
When the switchback
part are transported
Paper exit roller 2
Exit switch gate
Fusing motor (M30)
Exhaust sensor (PS39)
Gate switch solenoid (SD)
Switchback motor (M33)
Nomal rotation
Inverse rotation
ADU transport motor/1 (M31)
Instruction form the
optimal paper position
Switchback motor
turns around
A00JT2E531DA
Y107522-3 Theory of Operation
