Epson SQ-1170, Service Manual

Page: 39 / 176

Figure 2-35.
Figure 2-36.
Figure 2-37.
Figure 2-38.
Figure 2-39.
Figure 3-40.
Figure 2-41.
Figure 2-42.
Figure 2-43.
Figure 2-44.
Figure 2-45.
Figure 2-46.
Figure 2-47.
Figure 2-48.
Figure 2-49.
Figure 2-50.
Figure 2-51.
Table 2-1.
Table 2-2.
Table 2-3.
Table 2-4.
Table 2-5.
Table 2-6.
Table 2-7.
Operational Sequence of Ink Mechanism and
Carriage Position
Interlock Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-26
Power Supply Circuit Block Diagram
Control Circuitry Block Diagram ........................................2.29
Reset Circuit Block Diagram 1
Detection Circuit Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-31
Paper Feed Motor Drive
Carriage Motor Drive Circuit
Printhead Drive
Charge/Discharge Circuit
Head Charge
Head Discharge Condition
Timing for Discharge/Charge
Block Diagram of Pump Motor Drive
Block Diagram of TE Motor Drive
Block Diagram of Timer Circuit/Backup Circuit ..........2-37
EEPROM Control Circuit
LIST OF TABLES
Paper Feeding Method and Paper
Rotational Direction and Operation of Each Part ............2 -15
Ink End/Ink Cartridge Signal
Ratings of Power Supply
Voltage Allocation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-27
Major Elements on C076 MAIN Board and
Their Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...................2 -30
Carriage Motor Drive Modes