Brother HL-3075CW Manuale Utente

Troubleshooting

158

Color misregistration



Make sure that the printer is on a solid level surface.



Perform the auto color registration using the control panel (see Auto
Registration on page 96) or perform the manual color registration using the
control panel (see Manual Registration on page 97).



Identify the color causing the problem and put in a new drum unit. (See
Replacing the drum units on page 112.)
To identify the color of the drum unit, visit us at http://solutions.brother.com/
to view our FAQs and troubleshooting tips.



Put in a new belt unit. (See Replacing the belt unit on page 117.)

Uneven density appears
periodically across the page



Perform the calibration. (See Calibration on page 95.)



Identify the color that is uneven and put in a new toner cartridge for that color.
(See Replacing the toner cartridges on page 104.)
To identify the color of the toner cartridge, visit us at
http://solutions.brother.com/ to view our FAQs and troubleshooting tips.



Identify the color that is uneven and put in a new drum unit. (See Replacing
the drum units on page 112.)
To identify the color of the drum unit, visit us at http://solutions.brother.com/
to view our FAQs and troubleshooting tips.

Missing image at thin line



Make sure toner save mode is off in the control panel or the printer driver.



Change the print resolution.



If you use Windows printer driver, choose Improve pattern printing or Improve
Thin Line in Print Setting of Basic tab. (See Settings Dialog on page 38.)

Wrinkle



Change to the recommended type of paper.



Make sure that the back cover is closed properly.



Make sure that two

gray

levers inside the back cover are in the up position.



Make sure that the media type setting in the driver matches the type of paper
you are using. (See About paper on page 1.)

Offset image



Make sure that the media type setting in the driver matches the type of paper
you are using. (See About paper on page 1.)



Make sure that two

gray

levers inside the back cover are in the up position.



Check the printer’s environment. Conditions such as dry and low
temperatures may cause this print quality problem. (See Choosing a location
in the Quick Setup Guide.)



Examples of poor print quality

Recommendation

ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.