Brother LX-200 Service Manual page 173

13
Incorrect cutting position at document front or rear edge.
a. Defect in paper feed system.
b. Defect in paper sensor system.
Problem
a. Defect in paper Do the three planet gear units
feed system mounted on chassis L move
smoothly?
Does the rollers slip?
Is LF motor out of step?
b. Defect in paper Does the paper sensor work
sensor system smoothly?
Deformed sensor lever
(paper sensor crank)?
Does the sensor lever work
smoothly?
Check Item
Defective operation of
planet gear units.
Dirt or other foreign
matter stuck to rollers.
Defective driving roller
shaft.
Defective paper sensor.
Defective paper sensor
crank.
Defective paper sensor
crank.
7-21
Cause Remedy
Apply KS64F silicon
grease to the planet
gear units.
Replace the planet
gear units.
Clean the rollers.
Apply KS64F silicon
grease to the driving
roller shaft bearings.
Replace the paper
sensor.
Replace the paper
sensor crank.
Replace the paper
sensor crank.
See
Repair
Section
3.3.1
3.3.3
3.3.4
3.3.5
3.4
3.14.1
3.3.1
3.3.3
3.3.4
3.3.5
3.4
3.3.3
3.3.4
3.3.5