Construction; Specifications, Controls, And Functions; Major Components - Canon iR5055 Series Service Manual

5.1 Construction

5.1.1 Specifications, Controls, and Functions

iR5065 / iR 5055 / iR5075 / iR5075N / iR5065N / iR5055N
The specifications, controls, and functions of the machine's original exposure system are as follows:
Item
Scanning lamp
Original scanning
Original reading resolution
Halftone
Scanning position detection
lens
Magnification
Scanner drive control
Scanning lamp control
Original size detection

5.1.2 Major Components

iR5065 / iR 5055 / iR5075 / iR5075N / iR5065N / iR5055N
The major components of the original exposure system are as follows:
Item
Scanning lamp
Scanner motor
Reader Cooling fan
ADF open/closed sensor 1
Scanner HP sensor
ADF open/closed sensor 2
Original size sensor (AB)
Original size sensor (inch)
Interface PCB
Memory PCB
Mirror
Inverter PCB
CCD unit
T-5-1
YG xenon lamp
book mode: by moving the scanner
ADF mode: by moving original
600 x 600 dpi (main scanning x sub scanning)
256 gradations
by scanner HP sensor
single-focal point, fixed type
[1] in platen mode: 25% to 400%
main scanning direction: image processing by controller block
sub scanning direction: scanning speed variation (No. 1 mirror base; 100% or higher)
in combination with image processing by reader block (50% or higher and lower than 100%)
in combination with image processing in reader block and controller block (lower than 50%)
[2] ADF mode: 25% to 200%
main scanning direction: image processing in controller block
sub scanning direction: original movement speed variation (50% or higher); in combination with image
processing in controller block (lower than 50%)
No. 1/2 mirror base: control by pulse motor
[1]activation control by pulse motor
[2]error detection control
[1]book mode
sub scanning direction: by reflection type sensor
main scanning direction: by CCD
[2] ADF mode
main scanning direction: by slide guide in ADF
sub scanning direction: by photosensor in ADF
T-5-2
Notation
LA1 xenon lamp (90,000 lx)
M501 2-phase pulse motor (pulse control)
FM501 cools the reader block
PS501 detects the state (open/closed) of the ADF; at 5 deg
PS502 detects scanner home position
PS503 detects the state (open/closed) of the ADF (detects timing of size detection at 25 deg)
--- detects the size in sub scanning direction (AB-configuration)
--- detects size in sub scanning direction (inch)
--- controls motor and fan, connects printer and ADF
--- data delivery between main controler and reader contoler/ADF
No. 1, 2, 3 mirrors
---
drives the scanning lamp
---
collects image data, performs analog image processing
---
Description
Description
Chapter 5
0015-4373
0015-4375
5-1