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EPSON Stylus Pro 3800/3800C/3850
Revision A
OPERATING PRINCIPLES
Paper Feed Mechanism
49
2.6.2 Paper Loading Mechanism
ASF (AUTO SHEET FEEDER)
The ASF, whose driving source is an ASF motor, consists of a LD roller, LD roller
shaft, ASF sensor, hopper, and paper anti-slip tab. The cams on both ends of the LD
roller shaft activate the hopper and the paper anti-slip tab. The ASF sensor (photo
interrupter sensor) controls the rotational position of the LD roller shaft by detecting
the light-shielding plate installed on the shaft. Paper loading operation from the ASF is
described below:
1.
Start of the paper loading operation
The ASF motor moves to rotate the LD roller shaft.
2.
Feeding paper to the paper loading position
2-1.
The LD roller shaft rotates to release the lever that presses the paper anti-
slip tab, and the tabs go down.
Figure 2-20. Lowering the Paper Anti-slip Tab
2-2.
The LD roller shaft rotates to release the hopper actuating the cam that
presses the hopper, and the hopper moves up by the tension of the spring.
Figure 2-21. Raising the Hopper
3.
Picking-up paper
The LD roller shaft rotates to feed a single sheet of paper into the printer with a LD
roller.
Figure 2-22. Picking-up Paper
LD Roller Shaft
ASF Motor
Hopper
Paper Anti-slipTab
Lever
Hopper Actuating Cam
Hopper
Standby
Raising
LD Roller
LD Roller
Retard Roller
Hopper
Paper
Separation Pad
Содержание 3800 - Stylus Pro Color Inkjet Printer
Страница 1: ...EPSONStylusPro3800 3800C 3850 Large Format Color Inkjet Printer S SERVICE MANUAL SEIJ06007 ...
Страница 5: ...Revision Status Revision Date of Issue Description A November 30 2006 First release ...
Страница 9: ...C H A P T E R 1 PRODUCTDESCRIPTION ...
Страница 35: ...C H A P T E R 2 OPERATINGPRINCIPLES ...
Страница 61: ...C H A P T E R 3 TROUBLESHOOTING ...
Страница 85: ...C H A P T E R 4 DISASSEMBLY ASSEMBLY ...
Страница 190: ...C H A P T E R 5 ADJUSTMENT ...
Страница 250: ...C H A P T E R 6 MAINTENANCE ...
Страница 262: ...C H A P T E R 7 APPENDIX ...
Страница 264: ...EPSON Stylus Pro 3800 3800C 3850 Revision A APPENDIX Connectors 264 BLOCK DIAGRAM Figure 7 1 Block Diagram LLK MK PK LK ...
Страница 269: ...EPSON Stylus Pro 3800 3800C 3850 Revision A APPENDIX Exploded Diagrams 269 7 4 Exploded Diagrams ...
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