Photosensitive Drum Heater; Points To Note When Handling Photosensitive Drum; Before Removing Photosensitive Drum Heater; Removing Drum Heater - Canon iR5055 Series Service Manual

Chapter 7
[1]

7.10.7 Photosensitive Drum Heater

7.10.7.1 Points to Note When Handling Photosensitive
Drum
iR5065 / iR 5055 / iR5075 / iR5075N / iR5065N / iR5055N
The machine's photosensitive drum is made of high-sensitivity amorphous
silicon, and its sensitivity can start to deteriorate depending on how and
where it is placed, requiring the following:
[1] Whenever the process unit is removed from the machine or the photosen-
sitive drum is removed from the process unit, be sure to protect the pho-
tosensitive drum against light. Wrap 6 or more sheets of A3 or larger
paper around the photosensitive drum.
[2] Do not place the process unit or the photosensitive drum in a area subject
to the direct rays of the sun.
[3] Do not place the process unit or the photosensitive drum in an area sub-
ject to high or low temperature or humidity or where temperature or hu-
midity tends to change rapidly.
[4] Do not place the process unit or the photosensitive drum in an area sub-
ject to dust, ammonium gas, or organic solvent/gas.
The foregoing requirements commonly apply to all photosensitive drums.

7.10.7.2 Before Removing Photosensitive Drum Heater

iR5065 / iR 5055 / iR5075 / iR5075N / iR5065N / iR5055N
1) Detach the front cover. (page 10-13)Reference[Removing the Front
Cover]
2) Detach the toner supply cover. (page 10-14)Reference[Removing the
Toner Supply Cover]
3) Remove the primary fan duct. (page 10-29)Reference[Removing Prima-
ry fan Duct]
4) Remove the developing assembly. (page 7-28)Reference[Removing
Developing Assembly]
5) Remove the process unit. (page 7-20)Reference[Removing Process
Unit]
6) Remove the primary charging assembly. (page 7-21)Reference[Remov-
ing Primary Charging Assembly]
7) Remove the pre-transfer charging assembly.
8) Remove the potential sensor unit. (page 7-31)Reference[Removing Po-
tential Sensor Unit]
9) Remove the photosensitive drum. (page 7-22)Reference[Removing
Photosensitive Drum]

7.10.7.3 Removing Drum Heater

iR5065 / iR 5055 / iR5075 / iR5075N / iR5065N / iR5055N
1) Remove the flange [2] from the front.
- 2 screws [1]
[1]
7-24
[3] [2]
[2]
F-7-52
[2]
F-7-53
Protect the removed photosensitive drum against dirt and scratches by wrap-
ping 5 to 6 sheets of paper or the drum protective sheet stored near the col-
lecting toner container around the drum.
2) Remove the drum heater unit [1] from the rear.
3) Remove the drum heater [2].
- 1 connector [1]
0015-4905

7.10.7.4 Points to Note When Mounting Drum Heater

iR5065 / iR 5055 / iR5075 / iR5075N / iR5065N / iR5055N
Mount the photosensitive drum heater by reversing the steps used to remove
it. However, be sure not to soil or scratches the drum and not to trap the cable
of the drum heater.

7.10.8 Cleaning Blade

7.10.8.1 Configuration

0015-6546
iR5065 / iR 5055 / iR5075 / iR5075N / iR5065N / iR5055N

7.10.8.2 Before Removing Cleaning Blade

iR5065 / iR 5055 / iR5075 / iR5075N / iR5065N / iR5055N
0015-4913 1) Detach the front cover. (page 10-13)Reference[Removing the Front
Cover]
2) Detach the toner supply cover. (page 10-14)Reference[Removing the
Toner Supply Cover]
3) Remove the primary fan duct. (page 10-29)Reference[Removing Prima-
ry fan Duct]
4) Remove the developing assembly. (page 7-28)Reference[Removing
Developing Assembly]
5) Remove the process unit. (page 7-20)Reference[Removing Process
Unit]
6) Remove the primary charging assembly. (page 7-21)Reference[Remov-
ing Primary Charging Assembly]

7.10.8.3 Removing Cleaning Blade

iR5065 / iR 5055 / iR5075 / iR5075N / iR5065N / iR5055N
1) Remove the 4 screws [1].
[1]
F-7-54
[2]
[1]
F-7-55
Cleaning blade
Separation claw
F-7-56
0015-4915
0015-9371
0015-9373
0015-9374