Epson 440 Manuale Utente

The printer may exhibit different symptoms for the same problem, which makes troubleshooting more
difficult. This section, however, provides simple and effective ways to facilitate troubleshooting.
The following flowchart illustrates the main steps of the trouble shooting process.

CR Motor

CN6(C200 Main)

1-pin & 3-pin,

2-pin & 4-pin

7.8

ƒ¶•}

10%

PF(Pump) Motor

CN7(C200 Main)

1-pin & 3-pin,

2-pin & 4-pin

7.8

ƒ¶•}

10%

Paper end sensor

CN4 / 1-pin, 2-pin

Open: less than 0.7 V

Paper exit

Close: more than 2.4 V

No paper

Carriage home
position sensor

CN5 / 1-pin, 2-pin

Open: less than 0.7 V

Home position

Close: more than 2.4V

Out of home position

ASF phase Sensor

CN11 / 1-pin, 2pin

Open: less than 0.7 V

Home position

Close: more than 2.4 V

Out of home position

Black cartridge
sensor

CN8 / 1-pin, 18pin

On: 0 V

Black cartridge out

Off: more than 2.4 V

Black cartridge exit

Color cartridge
sensor

CN8 / 2-pin, 18-pin

On: 0 V

Color cartridge out

Off: more than 2.4 V

Color cartridge exit

Thermistor

CN8 / 3-pin, 18-pin

Analog data

Change the VH voltage of
charge pulse for common
driver circuit

START

END

Unit Level Troubleshooting

Unit Repair

(C206 PSB/PSE)

Unit Repair

(C200 Main)

Unit Repair

Printer Mechanism

Disassemble and Adjustment