Basic Construction; Specifications / Control / Function List; Major Components - Canon i-SENSYS MF4300dn Service Manual

3.1 Basic Construction

3.1.1 Specifications / Control / Function List

i-SENSYS MF4300dn / i-SENSYS MF4350d / i-SENSYS MF4380dn / i-SENSYS MF4310/4318 / i-SENSYS MF4320d / i-SENSYS MF4330d / i-SENSYS
MF4340d / i-SENSYS D450d / i-SENSYS MF4370dn
item
document exposure
document scan
scanning resolution
number of gradations
magnification
lens
CMOS sensor
CS drive control
document size detection none

3.1.2 Major Components

i-SENSYS MF4300dn / i-SENSYS MF4350d / i-SENSYS MF4380dn / i-SENSYS MF4310/4318 / i-SENSYS MF4320d / i-SENSYS MF4330d / i-SENSYS
MF4340d / i-SENSYS D450d / i-SENSYS MF4370dn
Followings are the major components for Document Exposure System.
- The contact sensor to scan document
- The Reader motor (M2), the drive pulley, the drive belt, to shift the contact sensor
In image scanning control, the contact sensor is shifted by rotating the Reader motor based on the drive signal from the DCNT PCB and scan the original on the
copyboard glass. When ADF is in use, image is scanned by feeding the originals by ADF instead of shifting the contact sensor.
function / method
LED
Book mode: scan by the shift of the contact Book mode: scan by the shift of the contact sensor (CS)
ADF: document stream reading by fixed contact sensor (CS)
600 dpi (horizontal scanner) X 600 dpi (vertical scanner)
256 gradations
50% to 200%
horizontal: image processing by SCNT PCB
vertical: change of carriage shift speed, image processing by SCNT PCB
rod lens array
number of lines: 1 line
number of pixels: 5184 pixels as total pixels (5107 pixels as effective pixels)
maximum document scanning width: 216 mm
drive control by Reader motor (M2)
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Chapter 3
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0020-2575
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