Lexmark 4200 Series - Manual (Page 25)

Diagnostic information 2-9
4413-XXX
Scanner motor with gear assembly service check
Motor will not run.
FRU Action
1 Scanner Motor with Gear
Assembly Check scanner motor for shorts.
Disconnect connector CN1 from the
system board and check for
approximately 6 ohms between the
following pins on the motor
connector.
CN1-1 and CN1-2
If the ohms reading is incorrect,
replace the scanner motor assembly.
If the motor does not come on during
the scanning process, check
connector CN1 on the system board.
If the connection is okay, check for
voltage reading of approximately 30
volts at pins
CN1-1
CN1-2
CN1-3
CN1-4
If voltage is correct, replace the
scanner motor with gear assembly.
Go to the
“Scanner motor with
gear assembly removal” on
page 4-11
. If voltage is incorrect,
replace the system board. Go to the
“System board removal” on
page 4-19
.
2 Document Scanner Sensor To check the document scanner
sensor, insert a sheet of paper or
press the sensor to see if the
scanner motor is working. Go to
“Control panel problems” on
page 2-3
.