Chapter 8
8-32
8.10 Detecting the Double-Feed
8.10.1 Detecting Double Feeding
0011-7360
The machine uses the ultra-sonic wave sensor (for transmission, reception) located downstream of the reg-
istration roller to check for double feeding, and stops the ongoing printing operation upon detection. Ul-
trasonic waves are often characterized as follows, and
may be used for the detection of double feeding regardless of the type of medium used (plain
paper, heavy paper, colored paper, transparency, etc.).
- propagation is subject to significant attenuation between different densities (e.g., air and paper).
- propagation is free of attenuation in regard to the color or thickness of the object being checked.
F-8-53
[1] Double feeding sensor (transmission)
[2] Double feeding sensor (reception)
[3] Registration roller
MEMO:
Some models (for sale in specific countries) may not come standard with this detection mechanism. Its use
requires a Double Feeding Detection Kit (optional).
<Timing of Detection>
- interval extending several 100s of msec after the registration roller clutch goes on
<Sequence of Operation>
1) The mechanism is started.
2) The machine identifies double feeding.
3) The machine turns off the fixing motor as soon as the paper reaches the fixing nip area.
- The paper stops at the fixing nip area, with paper found downstream thereof discharged outside the ma-
chine.
- The control panel screen indicates the presence of a jam (0C00).
[1]
[2]
[3]
Содержание IMAGERUNNER 7095 PRINTER
Страница 20: ...Chapter 1 Introduction...
Страница 46: ...Chapter 2 Installation...
Страница 88: ...Chapter 3 Basic Operation...
Страница 94: ...Chapter 4 Main Controller...
Страница 116: ...Chapter 5 Original Exposure System...
Страница 165: ...Laser Exposure Chapter 6...
Страница 175: ...Chapter 7 Image Formation...
Страница 180: ...Chapter 7 7 3 7 3 Basic Sequence 7 3 1 Basic Sequence 0010 8038 F 7 3 ON ON WMUPR WMUP STBY OFF 100msec...
Страница 231: ...Chapter 8 Pickup Feeding System...
Страница 287: ...Chapter 9 Fixing System...
Страница 312: ...Chapter 10 External and Controls...
Страница 346: ...Chapter 11 MEAP...
Страница 350: ...Chapter 12 RDS...
Страница 360: ...Chapter 13 Maintenance Inspection...
Страница 375: ...Chapter 14 Standards Adjustments...
Страница 407: ...Chapter 15 Correcting Faulty Images...
Страница 433: ...Chapter 16 Self Diagnosis...
Страница 460: ...Chapter 17 Service Mode...
Страница 559: ...Chapter 18 Upgrading...
Страница 583: ...Chapter 19 Service Tools...
Страница 584: ...Contents Contents 19 1 Service Tools 19 1 19 1 1 Special Tools Table 19 1 19 1 2 Solvents Oils 19 2...
Страница 588: ...APPENDIX...
Страница 615: ......