Canon ImageRunner iR8500 Series, Service Manual, Page: 542 / 1122

Chapter 11
11-12
T-11-16
11.3.6 Sequence of Fan Operation
0007-0530
iR105i/iR105+ / iR9070
The machine's fans may be either ones operating in conjunction with the state of the printer unit or ones operating in conjunction with the state of the
scanning lamp, as shown in figure.
The scanner cooling fan and the power supply fan operate in relation to the states of both printer unit and the scanning lamp; they are, however, controlled
to the higher speed.
When a fan error occurs or the door is opened, the state which the fan was in prior to the error will be used.
- Fans Opening in Keeping with the State of the Printer Unit
F-11-7
Ref. Notati
on Name Description E code Alarm code
[1] FM1 Primary charging
assembly fan Prevents soiling of the wire in the
primary charging assembly E824
[2] FM2 Fixing heat discharge fan To discharge heat from around E805 -
[3] FM3 Scanner cooling fan To cool the laser scanner unit E121-0001 -
[4] FM5 Laser driver cooling fan To cool the laser driver PCB E121-0002 -
[5] FM6 De-curling fan To cool paper - 330001
[6] FM7 Feeding fan To draw paper to the feed belt - 330002
[7] FM8 Drum fan To draw and cool ozone and stray
toner from around the drum E820 -
[8] FM10 Pre-transfer charging fan To discharge ozone from around the
pre-transfer charging assembly
E823 -
[9] FM11 Power supply cooling fan
1
To cool the DC power supply PCB E804 -
[10] FM12 Power supply cooling fan
2
To cool the DC power supply PCB E804 -
[11] FM13 Separation fan To facilitate separation of paper from
the drum E830 -
[12] FM14 Laser scanner cooling fan To cool the laser scanner motor, to
insulate from the fixing assembly
E111 -
[13] FM15 Developing fan To cool the developing assembly - 330006
[14] FM16 System fan To cool the PCBs inside the system
box E804-0004 000804-0004
[15] FM17 Delivery adhesion
proofing fan
To cool paper being delivered - 330007
Curl-reducing fan
(FM6)
Drum fan
(FM8)
Pre-transfer charging
assembly fan (FM10)
Power supply cooling
fan 1 (FM11)
Power supply cooling
fan 2 (FM12)
Separation fan
(FM13)
Developing fan
(FM15)
Delivery anti-adhesion
fan (FM17)
:Full speed :Half-speed
Laser motor cooling
fan (FM21)
Fixing heat discharge
fan (FM2)
Laser cooling fan 1
(FM3)
Laser cooling fan 2
(FM5)
Duplex/feeding fan
(FM19)
Separation heat
discharge fan (FM20)
Warm-up
Initial
multiple
rotation
Standby Copying Printing
standby
after copying
(other
environment)
standby
after copying
(above H/
Hor 29)
Preheating Sleep E indication Jam Cover open
Main power switch ON
Full-speed
(t1)
→
half-speed
Half-speed
(t)
→
OFF
OFF OFF
OFF/half-speed/
full-speed
OFF/full-speed
OFF/half-speed
Full-speed
(t1)
→
half-speed
Full-speed
(t)
→
OFF
Full-speed
(t)
→
OFF
Full-speed
(t)
→
OFF
Half-speed
(t)
→
OFF
Half-speed
(t)
→
OFF
Half-speed
(t)
→
OFF
Half-speed
(t)
→ OFF