LX-300+/1170
Revision C
Operating Principles
Printer Mechanism
53
2.2.5 Paper Feed Mechanism
This mechanism consists of paper feed motor (PF motor), paper feed gears, platen, rear
paper end detector, bottom paper end detector and push tractor unit. (Refer to Refer to
Figure 2-2.)
o
Paper Feed Method
n
Friction feed
n
Push tractor feed
Uses standard push tractor
n
Push-pull tractor feed
Uses standard push t Option tractor
n
Pull tractor feed
Replace the standard push tractor with option tractor
o
Feeder
n
Simple CSF (option)
n
Tractor (standard)
Push / Pull
n
Pull tractor (option)
n
Roll paper holder
o
Paper path
n
Manual loading
Rear paper load, top paper load
n
CSF
Rear paper load, top paper load
n
Push tractor
Rear paper load, top paper load
n
Pull tractor
Rear / Bottom paper load, top paper load
o
Auto loading
When loading paper manually, push paper between the platen and the driven paper
load roller. Paper will be loaded automatically.
PF MOTOR
LX-300+/1170 uses a stepping motor for PF motor. Open loop control switches the phases
according to the setting period and this mechanism loads and carries paper to the appointed
position and eject paper.
The table below is the PF motor specifications.
Table 2-10. PF Motor Specifications
Item
Specification
Motor type
2-phase/96-pole Hybrid stepping motor
Coil resistance
16.0
Ω
±10% (25°C, per 1 phase)
Control method
bi-polar rated current drive
Phase drive
1-2 phase, W1-2 phase
Drive voltage
36.75 ± 1.75 VDC
(This voltage is added to driver.)
Drive current
0.1 to 0.9A
Paper feed pitch
Minimum Resolution:
0.059 mm (1/432”) (1-2 phase, 2 pass)
Содержание LX-1170
Страница 1: ...EPSONLX 300 1170 9 pin Serial Impact Dot Matrix Printer SEDM997003 SERVICE MANUAL LX 300 LX 1170 ...
Страница 8: ...C H A P T E R 1 PRODUCTDESCRIPTION ...
Страница 44: ...C H A P T E R 2 OPERATINGPRINCIPLES ...
Страница 60: ...C H A P T E R 3 TROUBLESHOOTING ...
Страница 69: ...C H A P T E R 4 DISASSEMBLYANDASSEMBLY ...
Страница 89: ...LX 300 1170 Revision C Disassembly and Assembly Disassembly and Assembly 89 ...
Страница 90: ...C H A P T E R 5 ADJUSTMENT ...
Страница 98: ...C H A P T E R 6 MAINTENANCE ...
Страница 103: ...C H A P T E R 1 9 7 APPENDIX ...
Страница 112: ...LX 300 1170 Revision C Appendix Component Layout 112 C294 MAIN B BOARD Figure 7 3 Component Layout C294 MAIN B Board ...
Страница 114: ...LX 300 1170 Revision C Appendix Component Layout 114 C294PNL BOARD Figure 7 6 Component Layout C294PNL ...
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