Paperpath Sensor Service Check; Printhead Service Check - Lexmark X203n Servise Manual

7011-2xx / 3xx

Paperpath sensor service check

FRU
All sensors
MPF sensor
Exit sensor
Paper in sensor
Controller card

Printhead service check

FRU
Printhead
2-32
Service Manual
Action
Check all the sensor flags for breakage or if they are jammed.
Check all the sensors for dirt.
Check pin 1 on connector J18 for +5V and pin 2 on J18 for +3.3 V.
Pins 3, and 4 should be ground.
Check pin 1 on connector J8 for +5V and pin2 on J8 for +3.3V. Pin 3
should be ground.
Check pin 1 on connector J17 for +5V and pin2 on J17 for +3.3V. Pin
3 should be ground.
If any of the readings are incorrect, replace the controller card. If they
are correct, replace the malfunctioning sensor.
Action
Unplug the MFP.
Disconnect the printhead cables from J13 and J12 on the controller
card.
Turn the MFP on.
On the 7011-2xx controller card, verify +24 V dc on pin 5 at J13 and
+5 V dc on pin 7 at J12.
On the 7011-3xx controller card, verify +24 V dc on pin 2 at J13 and
+5 V dc on pin 10 at J12.
Verify grounds on pin 4 at J13 and on pins 2, 6, and 8 at J12.
• If voltages or grounds are incorrect, check the controller card. See
"Controller card service check" on page 2-25
information.
• If voltages are correct, replace the printhead (cables are
included).
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