Paper Problems; Paper Loading Problems - Brother mfc8440 Service Manual

3.

PAPER PROBLEMS

3.1

Paper Loading Problems

First, make sure that you are using paper that meets Brother recommended paper
specifications. See 2.12 Paper in Chapter 1.
Problem
The machine does not feed
paper.
The machine does not feed
paper from the manual feed
slot.
The machine will not feed
envelopes.
A paper jam has occurred.
The machine does not print
into the top output tray.
The machine does not print on
the specified paper.
(with optional lower tray unit)
The back light not light up
appears although documents
are set.
Document not fed.
Document double feeding.
Document jam.
• If there is paper in the paper tray, make sure it is straight. If
the paper is curled, you should straighten it before printing.
Sometimes it is helpful to remove the paper, turn the stack
over and put it back in the paper tray.
• Reduce the amount of paper in the paper tray, and then try
again.
• Check that manual feed mode is not selected in the printer
driver.
• Re-insert the paper firmly, one sheet at a time.
• Make sure that manual feed mode is selected in the printer
driver.
• The machine can feed envelopes from the manual feed
tray or multi-purpose tray. Your application software must
be set up correctly to print on the envelope size you are
using. This is usually done in the page setup or document
setup menu of your software. Please see your software
application manual.
• Clear the jammed paper. Please see paper jams and how
to clear them or the paper jam instructional video on the
CD-ROM.
• Close the back output tray.
• Make sure that the appropriate printer driver is selected.
• Check the sensors by using the maintenance-mode
function code 32. (Refer to Chapter 7, Subsection 3.9)
• Check the document front sensor actuator and document
rear sensor actuator.
• Check the main PCB.
• Check the ADF and its related sections.
• Check the ADF motor and its harness.
• Check the document feed roller and its related gears.
• Check the main PCB.
• Check the ADF parts.
• Check the ADF motor.
6-11
MFC-8440/8840D/8840DN, DCP-8040/8045D/8045DN
Remedy
SERVICE MANUAL