Epson DFX-9000
Revision B
Operating Principles
Printer mechanism
61
2.2.2 Carrier drive mechanism
The Carrier unit is attached to the SP (CR) belt, which has a driven
pulley on one end and an idle pulley on the other. Drive force is
transmitted from the SP motor to the SP belt, and the Carrier unit moves
horizontally guided by both the Carriage shaft and Guide stay.
The Shield plate on the left side of the Guide Stay is used to detect a
horizontal reference position for the Carrier unit.
When printing, the position of the Carrier unit is determined by the CES
scale and the CES sensor on the Carrier unit, with reference to the print
start position and the motor speed. The resolution of the CES scale is 1/
120 inch.
Figure 2-5. The Drive Section of the Carrier Unit
CES Scale
Carrier Shaft
Carrier Unit
Guide Stay
SP Belt
SP Motor
Shield plate
Summary of Contents for DFX-9000
Page 1: ...EPSONDFX 9000 Serial Impact Dot Matrix Printer SEDM04003 SERVICE MANUAL ...
Page 8: ...C H A P T E R 1 PRODUCT DESCRIPTION ...
Page 61: ...Epson DFX 9000 Revision B Product Description Dimensions and weight 54 ...
Page 62: ...C H A P T E R 2 OPERATING PRINCIPLES ...
Page 99: ...Epson DFX 9000 Revision B Operating Principles Circuit operation 92 ...
Page 100: ...C H A P T E R 3 TROUBLESHOOTING ...
Page 104: ...Epson DFX 9000 Revision B Troubleshooting Overview 97 Mechanism initialization e e e e e ...
Page 107: ...Epson DFX 9000 Revision B Troubleshooting Overview 100 PAPER FEEDING FF APG APPROACH ...
Page 130: ...C H A P T E R 4 DISASSEMBLY AND ASSEMBLY ...
Page 218: ...C H A P T E R 5 ADJUSTMENT ...
Page 263: ...Epson DFX 9000 Revision B Adjustment Additional functions 256 ...
Page 264: ...C H A P T E R 6 MAINTENANCE ...
Page 286: ...C H A P T E R 7 APPENDIX ...
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Page 324: ...EPSON DFX 9000 Revision B Appendix Component Layout 317 7 4 Component Layout ...
Page 333: ...EPSON DFX 9000 Revision B Appendix Parts list 326 ...