REV.-A
PRINCIPLES OF OPERATION
2.3.10 RIBBON-FEED MECHANISM
The ribbon-feed mechanism consists of the ribbon cartridge and the ribbon-feed section. The ribbon-driving
gear always is driven counterclockwise (regardless of the timing-belt direction) via the gear trains shown
in Table 2-10.
Table 2-10. Ribbon-Feed Gear Train
Direction of Movement of Carriage
Left to right
( a r r o w
Right to left
(arrow
)
Gear Train
Beltdriven pulley
Platen gear
(1)
Platen gear (2)
Ribbon-driving gear
Beltdriven pulley Platen gear (1)
(arrow
Platen gear (3) Platen gear (4)
Ribbon-driving gear
Figure 2-71 shows the ribbon-feed mechanism. The inked ribbon is held in the cartridge case between the
ribbon-feed and the ribbon-pressure roller mounted on the ribbon-driving gear. The ribbon configuration is
such that the ribbon can feed endlessly. The ribbon-driving gear drives the rollers, which causes the ribbon
to be fed. To prevent ribbon slack, a ribbon-braking spring is attached at the exit of the cartridge case. A
ribbon mask is installed to prevent the ribbon from staining the paper.
Ribbon Feed
Ribbon Pressure Roller,
Ribbon Transmission Gear
Ribbon Braking
Spring
Figure 2-71. Ribbon-Feed Mechanism
LQ-510
2-65
Summary of Contents for AP-4000
Page 1: ...LQ 510 AP 4000 T E C H N I C A L M A N U A L EPSON ...
Page 4: ...REV A REVISION SHEET iv LQ 510 ...
Page 103: ...REV A PRINCIPLES OF OPERATION LQ 510 Figure 2 68 A D Converter Circuit 2 61 ...
Page 125: ...OPTIONAL EQUIPMENT REV A 3 16 Figure 3 12 Lubrication Points 2 LQ 510 ...
Page 167: ......
Page 192: ...MAINTENANCE REV A L __ w w n Figure 6 3 LQ 510 Lubrication Points 6 3 LQ 510 ...
Page 202: ...APPENDIX REV A Table A 6 E01A05 Pin Functions A 8 LQ 510 ...
Page 212: ...3 L CN 1 ...
Page 213: ...REV A APPENDIX Figure A 25 SANPSE Board Component Layout LQ 510 A 19 ...
Page 214: ...REV A APPENDIX J Figure A 26 SANPSE Board Circuit Diagram A 20 LQ 510 ...
Page 215: ...REV A APPENDIX Figure A 27 SANPNL W Board Circuit Diagram LQ 510 A 21 ...
Page 216: ... w 3 0 4 CN1 14 18 22 I IP I9 3 1 2LSl39 2 6 8 2 4 9 TOM4 BOARD Y 4 5 4 2 0 9 0 0 0 0 0 ...
Page 220: ...h i ...
Page 221: ...REV A APPENDIX 506 Figure 14 32 Model 5710 Printer Mechanism Exploded Diagram A 29 ...
Page 222: ...APPENDIX REV A Figure A 33 C80006 Pull Tractor Exploded Diagram A 30 LQ 510 ...
Page 223: ... Y ...
Page 224: ...APPENDIX REV Figure A 35 LQ 510 Printer Cover A Case Outline Drawing A 32 LQ 510 ...
Page 225: ...APPENDIX REV A J 2 7 J Bl Figure A 36 LQ 510 Printer Cover B Case Outline Drawing LQ 510 A 33 ...
