Canon iR8500 Servise Manual

Also see for ImageRunner iR8500 Series: Function guide Service manual Service manual Service manual

Contents

CHAPTER 3 MAIN CONTROLLER3-15COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 20014.5 Low-Power ModeIn lower power mode, only the +24 V power supply is turned off; the power to the readerunit and the printer unit is reduced to save on the power consumed by the machine.4.5.1 Shift from Standby Mode (standby → low-power)A shift is made from standby mode to low-power mode under the following conditions:• When standby mode continues for a specific period of time, and the selected time inter-val (may be changed in user mode) has passed.4.5.2 Shift to standby Mode (low-power mode → standby)A shift is made from low-power mode to standby mode under the following conditions:• When the control panel power switch (soft switch) is turned on.• When PDL data is received form the network (parallel port; electrically speaking, thecontrol panel is off as in standby mode).4.6 Sleep ModeIn sleep mode, only the +3.3V all-night (3.3 VB) power supply remains on. The CPU it-self on the main controller PCB is at rest, stopping the program, and waits for an interrupt,thereby reducing the power consumption.This mode is used only when the machine is used as a printer equipped with a networkoption and a PDL print option.4.6.1 Shift from Standby Mode (standby → sleep)A shift is made from standby mode to sleep mode under the following conditions:• When the control panel switch (soft switch) is turned off.• When standby mode has continued for a specific period of time, the selected time inter-val (may be changed in user mode) has passed.4.6.2 Shift from Low Power Mode (low-power mode → sleep)A shift from low-power mode to sleep mode is made under the following conditions:• When the control panel power switch (soft switch ) is turned off.• When low-power mode has continued for a specific period of time, and the selectedtime interval (may be changed in user mode) has passed.4.6.3 Return to Standby Mode (sleep → standby)A shift is made from sleep mode to standby mode under the following conditions:• When the control panel power switch (soft switch) is turned on.• When PDL data is received from the network (parallel port; electrically speaking, whenthe control panel remains off as in standby mode).