Brother MFC-9420CN User Manual page 143

Chapter C
Examples of poor print quality
Toner scatter or toner stain
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
The color of your printouts is not
what you expected
All one color
Shade on the transparency
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
Color mis-registration
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
Uneven density appears
periodically across the page
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
C - 18
Recommendation
■
Identify the color causing the problem and replace that 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.)
■
Check that the toner cartridges are installed properly.
■
Check that the toner cartridges are not empty. (See Toner empty message on
page C-29.)
■
Perform the calibration. (Menu/Set, 4, 4)
■
Adjust the color by using the custom setting in the driver. Colors the machine
can print and colors you see on a monitor are different. The machine may not
be able to reproduce the colors on your monitor.
■
Check to make sure the recommended paper was used. (See Recommended
paper on page 2-1.)
Replace the OPC belt cartridge. (See Replacing the OPC belt cartridge (OP-4CL)
on page C-33.)
■
Change to the recommended type of transparency, and then check that the
problem is solved.
■
Check that the media type mode is selected properly.
■
Check that the OPC belt cartridge is installed properly.
■
Check that the cleaning roller is installed properly.
■
Replace the OPC belt cartridge. (See Replacing the OPC belt cartridge
(OP-4CL) on page C-33.)
■
Replace the cleaning roller. (See Replacing the transfer belt cleaner on
page C-37.)
■
Check that the toner cartridges are installed properly.
■
Check that the OPC belt cartridge is installed properly.
■
Check that the cleaning roller is installed properly.
■
Check that the back cover is closed properly.
■
Check that the fusing unit is installed properly.
■
Replace the OPC belt cartridge. (See Replacing the OPC belt cartridge
(OP-4CL) on page C-33.)