Canon iR2200 Series, Service Manual

Page: 47 / 768

COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON iR2200/iR2800/iR3300 REV.0 MAR. 2001
CHAPTER 2 MAIN CONTROLLER
2-15 S
4 Controlling the Power Supply
4.1 Outline
In addition to its control in response to the operation of the main power switch, the main
controller PCB possesses the following control mechanisms in relation to the power supply:
•
Standby mode (normal operation)
• Sleep mode 1
• Sleep mode 2
4.2 Power Supply Modes
The machine has the following modes for each of its power supply mechanisms; +3.3V
all-night (3.3 VB), +3.3V non-all night (3.3 VA), +5V, and 24V:
Mode +3.3V all night +3.3V non-all night +5V +24V LCD
Standby Yes Yes Yes Yes Yes
Sleep mode 1 Yes Yes Yes Yes No
Sleep mode 2 Yes No No No No
T02-402-01
4.3 Standby Mode (normal operation)
In standby mode, the machine is in operation or is ready operate, and nearly all compo-
nents are supplied with power; not only the main controller PCB, but also the reader unit,
printer unit, and control panel are all ready for communication and control.
4.4 Sleep Mode 1
In sleep mode 1, only the LCD image desplay remains OFF.