Construction; Specifications, Control Mechanisms, And Functions; Major Components - Canon iR C2880 Series Service Manual

5.1 Construction

5.1.1 Specifications, Control Mechanisms, and Functions

iR C3380i / iR C3380 / iR C2880i / iR C2880 / iR C3580 / iR C3580i / iR C3080 / iR C3080i
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 / iR C3580 / iR C3580i / iR C3080 / iR C3080i
The original exposure system consists of the following major components:
T-5-1
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:
by contact image sensor (CIS)
by reflection sensor (AB/Inch)
by slide guide in ADF
by photo sensor in ADF
Chapter 5
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0013-8566
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