Canon Color imageRUNNER C4580 Service Manual - page 349
Chapter 10
10-22
10.7 Registration Unit
10.7.1 Outline
The upper registraont roller an the lower registration roller are dreiven by the registration motor (M8), and are
used to make user aht the paper an the image on the intermediate transfer rbelt mach at a specific position. The
upper guide locking arm latches in place when the unit is fitted to the machine.
F-10-22
When fitted to the machine
When the multi upper guide is shifted up
Machine rail
Upper guide preasure
spring
Area of upper
guide to be
locked in place
Upper guide
locking arm
Mobile rail
Machine rail
Upper guide pressure spring
Mobile rail
Upper guide locking
arm open (unlocked)
Area of upper guide
to be locked
in place
Registration multi
upper guide
Registration Nip Released
The shape of the cam causes
the registration upper roller
to move up by 1.5 mm during
rotation, releasing the nip
where paper moves.
Upper registration
roller
Lower registration
roller