Recording Paper Feeding Problems; Paper Is Not Fed From Paper Tray - Brother MFC-J3520 Service Manual

4.2

Recording Paper Feeding Problems

Problems related to paper feeding are end user recoverable if following the User
Check items.
If the same problem occurs, follow each procedure in the order of the number
described in the Step column in the tables below.

4.2.1 Paper is not fed from paper tray

User Check
- Check that setting of tray selection is not fix to other tray.
- Check that recording paper is loaded correctly in the paper tray.
- Check that the paper smaller than the specified size is not loaded.
- Adjust the paper guide to match the recording paper size.
- Try reversing the recording paper in the paper tray, or rotating direction of the paper
for 180 degrees.
- Check thickness of recording paper is within tolerance of each type.
- Check that the number of recording paper loaded in the paper tray is within specified
volume.
- Clean the paper pull-in roller.
Step
1 Paper pull-in roller not
mounted in place
2 CR encoder strip stained
3 PF encoder disk stained
4 Bank ASSY out of place
5 The grease of the switching
lever guide of the maintenance
unit is not enough
6 Paper feed motor harness
connection failure
7 Registration actuator out of
place
8 Paper feeding path parts out of
place
9 Paper pull-in roller worn out
10 CR encoder strip defective
11 CR encoder sensor defective
12 Switching lever guide defective Replace the maintenance unit.
13 Registration sensor defective
14 Paper feed motor defective
15 Main PCB defective
Cause
Set the paper pull-in roller into place.
Clean the CR encoder strip.
Clean the PF encoder disk and flushing guide
(refer to
BEFORE
Set the bank ASSY into place.
Apply the grease for the switching lever guide of
the maintenance unit (refer to
Reconnect the paper feed motor harness.
Set the registration actuator into place.
Set the feeding path parts into place.
Replace the paper pull-in roller.
Replace the CR encoder strip
Replace the carriage PCB ASSY.
Replace the registration sensor PCB ASSY.
Replace the paper feed motor.
Replace the main PCB ASSY.
2-54
Solution
Chapter 3, Section 1 "PRECAUTIONS
PROCEEDING.")
Fig. 2-8 (2-55).)
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