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EPSON Stylus CX4100/CX4200/CX4700/CX4800/DX4200/DX4800/DX4850
Revision A
OPERATING PRINCIPLES
Printer Mechanism
67
For your reference, the top or the end of a paper is usually detected with the PE Sensor.
In case that the PE Sensor cannot detect the top of a paper in the paper loading
sequence, the printer indicates the “Paper Out error”. If the PE Sensor cannot detect the
end of a paper in the paper feeding sequence, the printer indicates the “Paper Jam
error”. As for the details, refer to Chapter 3
.
2.2.4.1 Paper Loading Mechanism
The Paper loading mechanism consists of the Change Lever in the Pump Unit, the
Holder Shaft Unit (including the Clutch mechanism) and the ASF Unit.
The Change Lever and the Clutch mechanism play a major role in the Paper loading
mechanism as follows.
1. ASF home position detection function
The ASF Unit on this printer does not have the ASF Home Position Sensor.
Instead of the ASF Home Position Sensor, the Change Lever and the Clutch
mechanism is used to detect the ASF home position.
When the Change Lever is set on the Clutch mechanism with the counterclockwise
rotation of the PF Motor pinion gear, the ASF home position is detected by this
lever for the paper loading operation. In this time, the printer cannot load a paper
from ASF Unit because the drive of the PF Motor is not transmitted to the LD
Roller Shaft.
2. Paper loading function
When the Change Lever is released from the Clutch mechanism with the
clockwise rotation of the PF Motor pinion gear, the ASF home position detection
function is changed over to the paper loading function. Therefore, the printer can
load a paper from ASF Unit because the drive of the PF Motor is transmitted to LD
Roller Shaft.
During paper loading, paper is transported from the ASF Unit into the printer by the
rotation of the 2 cams of the LD Roller.
Cam (Large) : Hopper release
Cam (Small) : Paper Back Lever release
When 1 page paper is loaded, the cams mentioned above prepare the Hopper and Paper
Back Lever for the next paper loading operation, and the remaining paper is returned to
the standby position.
show you the ASF paper loading sequence and
the operation of each mechanism.
Summary of Contents for CX4200 - Stylus Color Inkjet
Page 9: ...C H A P T E R 1 PRODUCTDESCRIPTION ...
Page 60: ...C H A P T E R 2 OPERATINGPRINCIPLES ...
Page 87: ...C H A P T E R 3 TROUBLESHOOTING ...
Page 121: ...C H A P T E R 4 DISASSEMBLY ASSEMBLY ...
Page 171: ...C H A P T E R 5 ADJUSTMENT ...
Page 187: ...C H A P T E R 6 MAINTENANCE ...
Page 194: ...C H A P T E R 7 APPENDIX ...
Page 221: ...Model PX A650 Stylus CX4700 CX4800 DX4800 DX4850 Board C571 PNL Rev D Sheet 1 1 ...
Page 222: ...Model Stylus CX4100 CX4200 DX4200 Board C577 PNL Rev A Sheet 1 1 ...