Lexmark Printer J110 Uživatelský manuál stáhnout pdf (Strana 79)

Diagnostic Information 2-57

4085-001

Multi-Purpose Feeder (MPF) Motor and Sensor Service

Check

1. Remove the rear cover from the printer.

2. Remove the engine board cover.

3. Install the multi-purpose feeder.

4. Check for a voltage reading at connector (J10) pin 1 for

approximately +36 V dc on the engine board. If the voltage is

incorrect, replace the engine board. If the voltage is correct, go

to step 5.

5. Remove the feeder from the printer.

6. Remove the left cover.

7. To check the motor, check between pins 1 and 5 on the motor

connector for approximately 16.8 ohms. If the reading is

incorrect, replace the multi-purpose feeder motor. If the reading

is correct, check the continuity between each pin 1 and 5 to the

motor case. If continuity exists, replace the motor. If the

symptom remains, go to “Power Supply Service Check” on

page 2-63 . To check the sensor, check pins 7 and 8 to ground

at connector (J10) for a voltage reading of approximately 5 V dc

each, with MPF installed and power on. If the voltage is

incorrect, replace the engine board. If the voltage is correct,

remove the multi-purpose feeder and check between the motor

connector pins 4 and 8 with the negative meter lead on pin 4

and positive lead on pin 8. Check for a reading of approximately

3.7 ohm. If ohm reading is not correct, replace sensor. See “MP

Feeder Sensor Test” on page 3-28 .

Top view of the multi-purpose feeder connector pin numbers:

1 2 ... 74 75 76 77 78 79 80 81 82 83 84 ... 247 248

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Lexmark Printer J110 Uživatelský manuál Strana 79