Chapter 5
5-14
5.3.4.3 Overview of Operation
0010-7900
iR7105 / iR7095
1. In a Wait State
No. 1 mirror base: at shading position
scanning lamp: off
original sensor
F-5-26
2. ADF Being Opened
No.1 mirror base: moves to a specific point of original detection
scanning lamp: off
original sensor: off
F-5-27
3. ADF Being Closed
No. 1 mirror base: at point of original detection
scanning lamp: off -> on
original sensor: original detection operation
- When the ADF is at 25 deg or lower, the external light within the width of any original is kept out of external light, thus causing the machine to assume the
absence of an original at points of external light detection (external light search operation).
The ADF open/closed sensor (main body) identifies the state as being "closed," and the machine starts original size detection.
Here, B5, B4, A4, and A3 are eliminated from the list of possible sizes.
- When the external light search is over, the machine turns on the xenon lamp for the main scanning lamp, and checks the CCD (4 points) for external light. For
sub scanning direction, the machine starts to operate the original sensor.
F-5-28
F-5-29
4. ADF Fully Closed (8 deg or less)
No. 1 mirror base: at point of original detection
scanning lamp: on
original sensor: original detection operation
The machine looks for a change in the output level of individual sensors for a period of 2 sec after the ADF open/closed sensor (ADF) has identified the current
state as being "closed." The absence of a change in the level causes the machine to assume the presence of an original at the point in question.
The machine uses the combination of changes in the levels of 5 points to identify the size of the original in question.
F-5-30
5. In a Wait State (for a press on the Start key)
No.1 mirror base: at point of original detection
3
present
present
4
absent
absent
Result
B5
CCD point of original detection
Scanning lamp
Original sensor
Reader unit
ADF
Point of detection 1
Point of detection 2
Point of detection 3
Point of detection 4
Platen
glass
(external
light)
(external
light)
25
8
Содержание iR7086
Страница 1: ...Sep 7 2007 Service Manual iR7105 7095 7086 Series...
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Страница 26: ...Contents...
Страница 27: ...Chapter 1 Introduction...
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Страница 32: ...Chapter 1 1 2 Not all products are necessarily available in all sales areas...
Страница 55: ...Chapter 2 Installation...
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Страница 151: ...Chapter 3 Basic Operation...
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Страница 159: ...Chapter 4 Main Controller...
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Страница 183: ...Chapter 5 Original Exposure System...
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Страница 229: ...Chapter 6 Laser Exposure...
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Страница 238: ...Chapter 6 6 6 F 6 7 1 Laser light 2 Laser shutter 1 2 1 2 2 1...
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Страница 241: ...Chapter 7 Image Formation...
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Страница 295: ...Chapter 8 Pickup Feeding System...
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Страница 353: ...Chapter 9 Fixing System...
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Страница 379: ...Chapter 10 External and Controls...
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Страница 394: ...Chapter 10 10 10 F 10 7...
Страница 417: ...Chapter 11 MEAP...
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Страница 467: ...Chapter 12 RDS...
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Страница 479: ...Chapter 13 Maintenance and Inspection...
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Страница 497: ...Chapter 14 Standards and Adjustments...
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Страница 527: ...Chapter 15 Correcting Faulty Images...
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Страница 561: ...Chapter 16 Self Diagnosis...
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Страница 585: ...Chapter 17 Service Mode...
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Страница 588: ...Contents 17 8 1 1 COPIER Items 17 94...
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Страница 689: ...Chapter 18 Upgrading...
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Страница 696: ...Chapter 18 18 4...
Страница 713: ...Chapter 18 18 22 formatting and download the system software once again...
Страница 726: ...Chapter 19 Service Tools...
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Страница 728: ...Contents Contents 19 1 Service Tools 19 1 19 1 1 Special Tools Table 19 1 19 1 2 Solvents Oils 19 2...
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Страница 734: ...Sep 7 2007...
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