Canon IR1210 Reference manual

(1/3)

Canon Service Bulletin COPIER

Issued by Canon Europa N.V.

Location:

Developing Unit

Subject:

Preventing drum unit claws used to attach developing unit from being broken

Detail:

The drum unit claws [1] used to attach the developing unit are broken when P kit is drawn out from the main

unit.

F-1

<Cause>

There are cases where the drum unit claws used to attach the developing unit are leaning inside. If P kit is drawn

out from the main unit in this case, one of the pressure arms is accidentally disconnected, detaching the

developing unit from the drum unit on the skew. Further, undue force is applied to the drum unit claw that the

pressure arm is still attached at this time, leading to broken of the claw.

Model:

iR1210

iR1230

iR1270F

Ref No.:

iR1200S-012

(F1-T01-0L6-10004-01)

Date:

24-09-04

[1] Claws used to attach the developing unit

iR1200S-012

(2/3)

The shape of the pressure arms is changedand the shape circled in red in the fig. below is newly added to prevent

the developing unit from being detached from the drum unit even when the drum unit claws are leaning inside.

F-2

Service Work:

Even if the drum unit has the previous-type pressure arms, the following steps can prevent the drum unit claws

[1] from being broken when P kit is drawn out from the main unit.

1.Draw out P kit from the main unit slowly.

2.Stop drawing it out when light blue areas ("PUSH" is written) of the pressure arms appear, and check to see

if both pressure arms are properly attached.

(As shown in the fig. below, metallic shafts are found at both edges of the light blue area if the pressure arm is

not properly attached.)

F-3

[2]: Pressure arm

[3]: Light blue area of the pressure arm ("PUSH" is written)

[4]: Metallic shafts at both edges of the light blue area

iR1200S-012

(3/3)

3.If the pressure arm is not properly attached in the step 2, push P kit back to the main unit once, and push the

light blue area of the pressure arm to connect the drum unit and the developing unit. Then, draw out P kit again

from the main unit.

(Check the step 2 again.)

4.If both pressure arms are properly attached after the step 2 is checked again, keep drawing out P kit from the

main unit slowly.

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