Brother MFC-9420CN User Manual
Page 144
Troubleshooting and routine maintenance
C - 19
C
Missing image at edge
■
Check that the toner cartridges are installed properly.
■
Check that the OPC belt cartridge is installed properly.
■
Identify the color causing the problem and replace the toner cartridge.
(See Replacing a toner cartridge on page C-29.)
■
Replace the OPC belt cartridge. (See Replacing the OPC belt cartridge
(OP-4CL) on page C-33.)
Wrinkle
■
Change to a recommended type of paper, and then check that the problem is
solved. (See Recommended paper on page 2-1.)
■
Check that the back cover is closed properly.
■
Check that the transfer roller is installed properly.
■
Check that the fusing unit is installed properly.
■
Replace the fusing unit. (See Replacing the fusing unit on page C-35.)
Mixed color image
■
Check that the front cover is closed properly.
■
Check that the toner cartridges are installed properly.
■
Check that the transfer roller is installed properly.
■
Replace the toner cartridges. (See Replacing a toner cartridge on page C-29.)
Insufficient gloss
Check that the recommended paper is being used. (See Recommended paper on
page 2-1.)
Offset image
Check that the recommended paper is being used. (See Recommended paper on
page 2-1.)
Poor fixing
■
Check that the recommended paper is used. (See Recommended paper on
page 2-1.)
■
Check that the media type mode is selected properly.
■
Check that the release lever of the fusing unit is set properly.
■
Replace the fusing unit. (See Replacing the fusing unit on page C-35.)
Poor fixing when printed on thick
paper
Set the machine to thick paper mode through the control panel or the printer driver.
(See the Software User’s Guide on the CD-ROM.)
Examples of poor print quality
Recommendation
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