Canon iR5570 Series, Service Manual

Page: 383 / 684

Chapter 9
9-29
F-9-57
When you have completed the foregoing series of steps, be sure to put
back the pin in its initial location before putting the fixing upper unit
back in the machine.
15) Release the 2 hooks [1] used to hold the bearings on both ends of the
fixing roller in place; then, detach the fixing roller assembly [2].
F-9-58
If you are replacing only the gear, bushing, or bearing (i.e., not replacing
the fixing roller), be sure to wrap paper around the roller before starting
the work. This is to prevent damage to the surface of the roller in the
event that the bearing falls on it during the work.
If you need put aside the fixing roller somewhere for a while, be sure to
put it on paper.
F-9-59
16) Remove the 2 C-rings [1], 2 gears [2], and 2 bearings [4] from the
fixing roller assembly.
F-9-60
As wear grows, the surface of the fixing roller tends to become
discolored. This phenomenon, however, will not affect the performance
of the roller. The color of the roller varies depending on its manufacture,
but the performance of the roller is the same.
9.5.4.2 Points to Note When Mounting the Fixing Roller
0009-4871
- A new fixing roller comes wrapped in paper. Be sure NOT to remove
the paper until you have placed the fixing roller in its correct location
in the fixing upper unit and have fixed the bearings in place on both
its ends using hooks, thus avoiding damage possibly occurring if any
of the bearings falls on the roller.
- Pay attention to the orientation of the bearing [1] and the bushing [2].
Be sure that the side of the bearing with a groove is toward the inside,
and the collar of the bushing faces outside. Also, the rear and front
fixing gears are different from each other; be sure to mount the gear
[3] (w/ larger protrusion) is at the rear while the other gear [4] (w/
smaller protrusion) is at the front.
F-9-61
- When attaching the C-ring [1], be sure to fit the 3 protrusions [2] of the
ring properly into the 3 grooves [3] of the fixing roller.
[1]
[2]
[3]
[2]
[1]
[1]
[1]
[2]
[3]
[4]
[1]
[2]
[3]
[4]
[1] [2] [3] [4]