operating
Principles
Service
Push - Pull Tractor Method
The push-pull tractor method is a combination of the push method, using the standard tractor, and
the pull method, using an optional tractor. The two tractors operate simultaneously to push and
pull the paper through the printer mechanism. Figure 2-6 shows push-pull &actor operation when
the paper is fed through the rear paper entrance.
.
Figure 2-6. Push-Pull Tractor Paper Advance Mechanism
Disengage Lever
The disengage lever switches whether or not the printer transmits the torque of the PF motor to the
tractor transmission gear. (See Figures 2-5 and 2-6.)
The paper path is different from friction feed and tractor feed. The PF driven roller is not in the
tractor feed paper path, so continuous paper is not advanced by this roller. Figure 2-7 shows the
paper path.
Sheet Guide
Cut Sheet
.
Platen
Continuous paper
PE
Sensor Assembly
PF Driven Roller
Figure 2-7. Paper Path
2-6
Содержание LQ-300 - Impact Printer
Страница 1: ...EPSON TERMINAL PRINTER LQ 300 SERVICE MANUAL EPSON ...
Страница 5: ...REVISION SHEET Revision Issue Date Revision Page Rev A September 28 1994 1st issue f v 1 ...
Страница 34: ...c f ...
Страница 101: ...Maintenance LQ 300 Service Manual Figure 6 1 LQ 300 Lubrication Points 6 2 Rev A ...
Страница 108: ...Appendix LQ 300 Service Manual I I I J a 1 e 1 1 l il G I Figure A 4 C130 PSE Circuit Diagram A 8 Rev A ...
Страница 110: ... Figure A 6 C130 PSB PSE Component Layout ...
Страница 111: ...Lq 3OO Service Manual Appendix A 4 EXPLODED DIAGRAMS Figure A 7 LQ 300 Exploded Diagram 1 Rev A A 1 1 ...
Страница 112: ...Appendix LC MMS vbeMantd Q ix iyii t v Figure A 8 LQ 300 Exploded Diagram 2 A 12 Rev A ...
Страница 113: ...L WOO Service Manual Appendix U3 o b o r I I 4 o u o b f Figure A 9 Color Upgrade Kit Exploded Diagram Rev A A 13 ...
Страница 119: ... f ...