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Technical Explanation > Document Exposure > Overview > Cross Section
Technical Explanation > Document Exposure > Overview > Cross Section
Document Exposure
Overview
■
Features
• Low energy consumption by adopting a new Scanner Unit
■
Specifications
Item
Specification/function
Remarks
Exposure system High-brightness white LED + reflection plate
-
Original
scan
In BOOK
mode
Scan by movement of scanner unit
-
In DADF
mode
Scan by original stream reading with scanner
unit fixed
-
Scanning
resolution
600 dpi x 600 dpi
300 dpi x 300 dpi
Gradation
256 gradations
-
Carriage position
detection
Scanner Unit HP Sensor (PS_A1)
-
Magnification
change
B&W: scan magnification change (Vertical
2-line skipping: 25 to 50%)
Color: digital reproduction
In horizontal
direction
Image processing in main controller PCB
-
In vertical
direction
Image processing in main controller PCB
Scan magnification change is
also used for 300dpi-SEND job
Number of line of
Reading sensor
4 lines (R, G, B, B/W)
-
Original
size
detection
In BOOK
mode
Horizontal direction: detection by Scanner unit
sensor (scanner unit)
-
Vertical scanning: Detection by the Reflection
Sensor (Original Size Sensor (AB configuration/
AK configuration) or Original Size Sensor (Inch))
Total 1 point (2 points for
global)
In DADF
mode
Horizontal scanning: Detection by the Photo
Interrupter
-
Vertical scanning: Detection by the Photo
Interrupter and Reflection Sensor
-
Maximum
original
size
In BOOK
mode
297 mm x 431.8 mm
-
In DADF
mode
297 mm x 630 mm
-
T-2-1
■
External View
[11]
[10]
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[1]
Reader Left Cover
[2]
Reader Left Retaining Cover
[3]
Reader Hinge Lower Cover (Left)
[4]
Reader PCB Cover
[5]
Reader Glass Support Cover
[6]
Reader Rear Cover
[7]
Reader Hinge Lower Cover (Right)
[8]
Glass Cleaning Sheet Storage Box
[9]
Reader Front Cover (Small)
[10] Reader Right Retaining Cover
[11] Reader Front Cover
■
Cross Section
[1]
[2]
[3]
[1]
Stream Read Glass
[2]
Copy Board Glass
[3]
Scanner Unit
F-2-2
F-2-3