EPSON LX-300+II/300+II RTP/1170II
Revision D
Operating Principles
Printer Mechanism
51
2.2.5 Paper Feed Mechanism
This mechanism consists of the paper feed motor (PF motor), paper feed gears, platen, rear
paper end detector, bottom paper end detector and push tractor unit. (Refer to Figure 2-2,
"Printer Mechanism Block Diagram")
Paper Feed Method
Friction feed
Push tractor feed
Uses standard push tractor
Push-pull tractor feed
Uses standard push t Option tractor
Pull tractor feed
Replace the standard push tractor with option tractor
Feeder
Simple CSF (option)
Tractor (standard)
Push / Pull
Pull tractor (option)
Roll paper holder
Paper path
Manual loading
Rear paper load, top paper load
CSF
Rear paper load, top paper load
Push tractor
Rear paper load, top paper load
Pull tractor
Rear / Bottom paper load, top paper load
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+II/1170II 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 shows the PF motor specifications.
Table 2-11. PF Motor Specifications
Item
Specification
Motor type
2-phase/96-pole Hybrid stepping motor
Coil resistance
LX-300+II:
12
Ω
±10% (25°C, per 1 phase)
LX-1170II:
10.6
Ω
±10% (25°C, per 1 phase)
Control method
bi-polar rated current drive
Phase drive
2-2 phase, 1-2 phase
Drive voltage
35 VDC +5 /-10 %
(This voltage is added to driver.)
Drive current
0.25, 0.72, 0.8A
Paper feed pitch
Minimum Resolution:
0.059 mm (1/432”) (1-2 phase, 2 pass)
Содержание cLX-300+II RTP
Страница 8: ...C H A P T E R 1 PRODUCTDESCRIPTION ...
Страница 42: ...C H A P T E R 2 OPERATINGPRINCIPLES ...
Страница 56: ...C H A P T E R 3 TROUBLESHOOTING ...
Страница 65: ...C H A P T E R 4 DISASSEMBLYANDASSEMBLY ...
Страница 85: ...C H A P T E R 5 ADJUSTMENT ...
Страница 92: ...C H A P T E R 6 MAINTENANCE ...
Страница 97: ...C H A P T E R 7 LX 300 IIRTP ...
Страница 110: ...APPENDIX ...
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