Timing Of Supply To The Reader Unit; Connections To Various Accessories - Canon iR4570 Series Service Manual

Chapter 10
To printer unit
(scanner PCB)
To DF
100 VAC
From printer unit
24 VDC, 13 VDC
From printer unit
To DF
J 5
DC24V
AC100V
Printer unit
controller PCB
Generates 5 VDC from 13 VDC
Generates 3.3 VDC from 13 VDC
F-10-5

10.4.1.3 Timing of Supply to the Reader Unit

iR2270 / iR2870 / iR3570 / iR4570
The reader unit is supplied with 24 VDC/1.3 VDC by the printer unit at such times as described below.
Scan
Standby
Main power switch ON
Power plug content
to outlet
DC 13V/24V
F-10-6

10.4.1.4 Connections to Various Accessories

iR2270 / iR2870 / iR3570 / iR4570
The following diagram shows the connections between the printer unit and the various accessories used for the
10-10
DC24V
DC13V
DC13V/3.3V
0 4
Sleep mode
PSTBY
AC100V
SCAN
0006-5394
0006-5395