Basic Sequence; Basic Sequence Of Operations - Canon iR5055 Series Service Manual

Chapter 5
Backup of
service mode settings
Jack
J201 used for input of power from the machine (printer unit)
J202 used for communication with the ADF (sensor signal input, fan control, scanner motor control, controller)
J203 used for communication with the printer unit; connects to the scanner motor; used for communication with the ADF; used for input of image
signals
J204 used for connection with the CCD unit.
J205 used for communication with the CCD unit.
J206 used for connection with the inverter PCB.
J207 used for connection with the original size sensor (AB).
J208 used for connection with the original size sensor (inch).
J209 not used
J210 not used.
IC
IC1 CPU (holds boot program)
IC2 ASIC (holds RAM)
IC3 flash ROM (stores firmware)
IC4 EEPROM (backs up service mode settings)

5.2 Basic Sequence

5.2.1 Basic Sequence of Operations

iR5065 / iR 5055 / iR5075 / iR5075N / iR5065N / iR5055N
Basic Sequence of Operation at Power-On
5-4
Image processing (shading correction)
Printer
unit
J201
J203
DC24V
DC13V
DC5V
DC3.3V
IC4
J206
Inverter
PCB
(dotted line):back
Scanner
motor
Storage of system software
DF
J202
IC1
IC2
(CPU)
J205 J207 J208
Original size Original size
sensor (AB) sensor (inch)
CCD unit
F-5-5
T-5-3
Description
T-5-4
Description
(flash ROM)
(not used)
IC3
J209
J210
J204
(not used)
0015-4382