List of Figures
Figure 2-1.
Figure 2-2.
Figure 2-3.
Figure 2-4.
Figure 2-5.
Figure 2-6.
Figure 2-7.
Figure 2-8.
Figure 2-9.
Figure 2-10
Figure 2-11
Figure 2-12
Figure 2-13
Figure 2-14
I
I
I
I
I
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Movement Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Friction Advance Mechanism. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Tractor paper Advance Mechanism . . . . . . . . . . . . . . . . . . . . 2-4
paper Advance Mechanism . . . . . . . . . . . . . . . . . . . . . 2-5
Push-Pull Tractor PaperAdvance Mechanism . . . . . . . . . . . . . . . . . 2-6
Paper Path. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .2-6
Ribbon Advance Gear Linkage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
ColorShift Mechanism.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Platen GapAdjustment Mechanism . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Power Supply Circuit Block Diagram . . . . . . . . . . . . . . . . . . . . . . 2-11
Control Circuit Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
Power On Reset Circuit Diagram. .,..... . . . . . . . . . . . . . . . . . 2-13
HomePositionSensorCircuit Diagram . . . . . . . . . . . . . . . . . . . . 2-13
Figure 2-15. PaperEndSensor Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . 2-14
Figure 2-16
Figure 2-17
Figure 2-18
Figure 2-19
Figure 2-20
Release Lever Position Sensor Circuit Diagram . . . . . . . . . . . . . 2-14
Carriage Motor
Diagram . . . . . . . . . . . . . . . . . . . . . 2-15
Paper Feed Motor
Diagram . . . . . . . . . . . . . . . . . . 2-16
Driver Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . 2-16
Parallel Interface Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
Figure 2-21. Serial interface Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
Figure 2-22
Figure 2-23
Figure 2-24
Control Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . 2-18
CSMotorAssemblyCircuit Diagram . . . . . . . . . . . . . . . . . . . . . . 2-18
Color Ribbon SensorCircuit Diagram . . . . . . . . . . . . . . . . . . . . . 2-19
List of Tables
Table 2-1. CR Motor Assembly Specifications. .
Table 2-2. PF Motor Assembly Specifications . .
Table 2-3. Ribbon Advance Gear Linkage . . . .
Table 2-4. CS Motor Assembly Specifications. .
Table 2-5. Coloring Sequences . . . . . . . . . . . . .
Table 2-6. Power Supply Board. . . . . . . . . . . . .
2-2
2-4
2-7
. .
. . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . 2-8
. . . . . . . . . . . . . . . . . . . . . . . . 2-8
. . . . . . . . . . . . . . . . . . . . . . . 2-10
Table 2-7. Power Supply Output Voltages and Applications . . . . . . . . . . . . . . 2-10
Table 2-8. Functions of the Main
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
Table 2-9. Carriage Motor Drive Modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
Summary of Contents for LX-300
Page 1: ... EPSON TERM NAL PR NTER LX 300 SERVICE MANUAL EPSON ...
Page 4: ...REVISION SHEET Revision Issue Date Revision Page Rev A April 6 1994 1st issue 4 j v ...
Page 95: ...Maintenance LX 300 Service Manual k w n M IL f Figure 6 1 LX 300 Lubrication Points 6 2 Rev A ...
