Construction; Specifications, Control Mechanisms, And Functions; Major Components - Canon iR C3380 series Service Manual

5.1 Construction

5.1.1 Specifications, Control Mechanisms, and Functions

/ / / / iR C3380i / iR C3380 / iR C2880i / iR C2880
The following are the major specifications, control mechanisms, and functions associated with the original exposure system:
Item
Source of light
Scan
Reading resolution
Number of gradations
Productivity (w/ ADF in use)
Carriage position detection
Magnification
Lens
CCD
CIS drive control
Scanning lamp activation control
Original size identification

5.1.2 Major Components

/ / / / iR C3380i / iR C3380 / iR C2880i / iR C2880
The original exposure system consists of the following major components:
Copyboard cover
open/closed sensor
(rear: PS503)
Copyboard cover
Open/closed sensor
(front: PS502)
Item
Contact image sensor (CIS)
Reader motor
CIS HP sensor
Copyboard cover open/closed sensor
Description
Xenon lamp (white)
in book mode: scan by a moving contact image sensor (CIS)
in ADF mode: scan by a stationary contact image sensor (CIS; stream reading)
600 dpi (main scanning direction) x 600 dpi (sub scanning direction)
256
28 ipm (single-sided, A4/LTR)
by contact image sensor (CIS) HP sensor (PS501)
25% to 400%
in main scanning direction: image processing by the main control PCB (main)
in sub scanning direction: image processing by the main controller PCB (main)
rod lens array
number of lines: 3 (RGB)
Number of pixels: 7488
maximum reading width: 310 mm
by reader motor (M501)
[1] by inverter circuit
[2] error detection
[1] Book Mode
main scanning direction:
sub scanning mode:
[2] ADF mode
main scanning direction:
sub scanning direction:
Original sensor 2
Original sensor 1
Reader controller PCB
Reader heater*1
CIS HP sensor
(PS501)
Notation
M501
PS501
PS502/PS503
(PS502)
T-5-1
by contact image sensor (CIS)
by reflection sensor (AB/Inch)
by slide guide in ADF
by photo sensor in ADF
Reamer motor (M501)
Reader heater*1
Inverter PCB
Contact image
sensor (CIS)
*1: accessories settings (100/230V model only)
F-5-1
T-5-2
Description
xenon lamp (2 pc. of 2400 lx)
pulse motor (carriage drive control)
photointerrupter (CIS home position detection)
photointerrupter (copyboard cover state (open/closed) detection)
sub scanning direction by angle of copyboard cover (lamp ON)
Chapter 5
0013-8565
0013-8566
5-1