Power Supply System; Power Supply; Overview Of The Power Supply System; Protection Function - Canon iR7086 Series Service Manual

Chapter 10
Polygon cooling
fan (FM1)
Fixing heat
discharge fan (FM2)
Laser cooling fan
(FM3)
De-curling fan
(FM6)
Drum suction 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)
Discharge
anti-adhesion fan
(FM17)
Duplexing transport
fan (FM19)
Separation heat
discharge fan (FM20)
scanner heat
discharge fan 2 (FM18)
scanner heat
discharge fan 1 (FM21)
*1: Full speed (t) OFF

10.4 Power Supply System

10.4.1 Power Supply

10.4.1.1 Overview of the Power Supply System

iR7105 / iR7095 / iR7086
The machine's DC power supply is controlled by the DC power supply PCB and the relay PCB:
PCB
DC power supply PCB
Relay PCB

10.4.2 Protection Function

10.4.2.1 Protective Functions

iR7105 / iR7095 / iR7086
The machine is designed to automatically stop the output of the DC power supply as soon as the overcurrent protective mechanism turns on.
If an overcurrent is detected by the overcurrent detection circuit A, outputs [1] and [2] are stopped; this is to prevent malfunction of the machine, as output [1] is
used by the logic system.
If the overcurrent detection circuit B detects an overcurrent, output [2] is stopped.
10-6
Main power switch ON
Initial
Warm-up multiple Standby Copying/printing
rotation
*2: Full speed (t) half-speed
Description
- generates DC power from AC power
- protects against over-current
- generates DC power from DC power (24 V to 18 V)
- supplies DC power to loads
- protects individual loads against over-current
Standby after Pre-
copying/printing heating
*2
*1
*1
*3: Half-speed (t) OFF *4: OFF/Half-speed
F-10-4
T-10-8
E
In sleep JAM
indication
*1
*3 *4
*1
OFF
*3
*3
*3
*4
*3
*5: OFF/Full speed
Full speed Half-speed
Door
open
OFF
*5
0011-3327
0011-3329