Brother HL-4570CDW

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Troubleshooting

157

Colour misregistration

 Make sure that the machine is on a solid level surface.

 Perform the auto colour registration using the control panel (see Auto

Registration on page 80) or perform the manual colour registration using the

control panel (see Manual Registration on page 80).

 Put in a new drum unit. (See Replacing the drum unit on page 98.)

 Put in a new belt unit. (See Replacing the belt unit on page 102.)

Uneven density appears

periodically across the page

 Perform the calibration. (See Color Calibration on page 79.)

 Identify the colour that is uneven and put in a new toner cartridge for that

colour. (See Replacing the toner cartridges on page 93.)

To identify the colour of the toner cartridge, visit us at

http://solutions.brother.com/

to view our FAQs and troubleshooting tips.

 Put in a new drum unit. (See Replacing the drum unit on page 98.)

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 a Windows printer driver, choose Improve pattern printing or

Improve Thin Line in Print Setting of Basic tab. (See Settings Dialog

on page 31.)

Wrinkle

 Change to the recommended type of paper.

 Make sure that the back cover is closed properly.

 Make sure that the two grey 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 Type and size of paper on page 2.)

Offset image

 Make sure that the media type setting in the driver matches the type of paper

you are using. (See Type and size of paper on page 2.)

 Make sure that the two grey levers inside the back cover are in the up position.

 Check the machine’s environment. Conditions such as low humidity and low

temperatures may cause this print quality problem.

 Put in a new drum unit. (See Replacing the drum unit on page 98.)

Examples of poor print quality Recommendation

ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefg hijkl mnop qrstuvw xyz.

ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.

Brother HL-4570CDW - Page 163