Epson LX-300 Service Manual page 30

Figure 2-1.
Figure 2-2.
Figure 2-3. I Friction Advance Mechanism. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Figure 2-4. I
Figure 2-5.
Push-Pull Tractor PaperAdvance Mechanism . . . . . . . . . . . . . . . . . 2-6
Figure 2-6. I
I Paper Path. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .2-6
Figure 2-7.
Figure 2-8. I Ribbon Advance Gear Linkage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Figure 2-9. ColorShift Mechanism.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Figure 2-10 Platen GapAdjustment Mechanism . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Figure 2-11 Power Supply Circuit Block Diagram . . . . . . . . . . . . . . . . . . . . . . 2-11
Figure 2-12 Control Circuit Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
Power On Reset Circuit Diagram. .,..... . . . . . . . . . . . . . . . . . 2-13
Figure 2-13
HomePositionSensorCircuit Diagram . . . . . . . . . . . . . . . . . . . . 2-13 ,.
Figure 2-14
Figure 2-15. PaperEndSensor Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . 2-14
Figure 2-16 Release Lever Position Sensor Circuit Diagram . . . . . . . . . . . . . 2-14
Figure 2-17
Carriage Motor DriverCircuit Diagram . . . . . . . . . . . . . . . . . . . . . 2-15
Figure 2-18 Paper Feed Motor DriverCircuit Diagram . . . . . . . . . . . . . . . . . . 2-16
Figure 2-19
Figure 2-20 Parallel Interface Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
Figure 2-21. Serial interface Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
Figure 2-22
Figure 2-23
CSMotorAssemblyCircuit Diagram . . . . . . . . . . . . . . . . . . . . . . 2-18
Figure 2-24 Color Ribbon SensorCircuit Diagram . . . . . . . . . . . . . . . . . . . . . 2-19
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. . . . . . . . . . . . .
Table 2-7. Power Supply Output Voltages and Applications . . . . . . . . . . . . . . 2-10
Table 2-8. Functions of the Main IC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
Table 2-9. Carriage Motor Drive Modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
List of Figures
List of Tables
. . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . 2-8
. . . . . . . . . . . . . . . . . . . . . . . . 2-8
. . . . . . . . . . . . . . . . . . . . . . . 2-10
2-2
2-4
2-7