EPSON Stylus COLOR 860/1160
Revision C
Operating Principles
Overview
37
Torque sent from the ASF/Pump motor to the ASF unit via the disengage
mechanism is used for the following operation.
o
Paper loading operation
Like the Stylus COLOR 440/640/740, ASF of this printer has the multiple paper
loading prevention mechanism to provide steady paper loading. This
mechanism prevents a sheet of paper from falling from the paper set
position into the paper path. A paper return lever in the mechanism pushes
paper that may have fallen off back onto the hopper. After this motion is
completed, the LD roller starts loading paper. The paper loading
mechanism, including the multiple paper loading prevention mechanism, is
described in the following steps.
1. When the printer power is turned on, the ASF/Pump motor rotates
counterclockwise to detect ASF home position. Then the motor rotates
clockwise specified steps to set the LD roller and paper turn lever in place.
(See “Standby State” in Figure 2-10.)
2. When the paper loading signal is sent from the PC and the Load/Eject
button is pressed, ASF/Pump motor turns counterclockwise to let the LD
roller load paper. (See “Paper Pick Up State” in Figure 2-10.)
3. When the paper is transported to the PF roller, the LD roller stops where it
loses friction. (See “PF Roller Paper Feed State” in Figure 2-10.)
4. When the next print signal is sent and Load/Eject button is pressed, the
ASF/Pump motor rotates clockwise specified steps to set the LD roller and
the paper return lever in place. (See “Standby State” in Figure 2-10.)
NOTE:
If no print signal is sent for several seconds in step 4, the LD roller and the
paper return lever automatically return to the standby state.
Figure 2-10. Multiple Paper Loading Prevention Mechanism
2
3
LD Roller
Cam
Hopper
Hopper Spring
Pinch Roller
Pad
Pad Spring
Paper Return
Lever
[Stand-by State]
[Paper Pickup State]
[PF Roller Paper Load State]
Содержание Stylus COLOR 1160
Страница 8: ...C H A P T E R PRODUCTDESCRIPTION ...
Страница 28: ...C H A P T E R OPERATINGPRINCIPLES ...
Страница 53: ...C H A P T E R TROUBLESHOOTING ...
Страница 74: ...C H A P T E R DISASSEMBLYANDASSEMBLY ...
Страница 116: ...C H A P T E R ADJUSTMENT ...
Страница 150: ...C H A P T E R MAINTENANCE ...
Страница 160: ...APPENDIX C H A P T E R ...
Страница 171: ...PSON Stylus COLOR 860 1160 Revision C ppendix Circuit Board Component Layout 171 Figure 7 5 C298PNL Component Layout ...