Brother DCP-9020CDN User Manual page 115

Examples of poor print quality
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
Colours are light or unclear on the
whole page
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
White streaks or bands down the
page
Recommendation

Perform the calibration using the Touchscreen or the printer
driver (see Calibration on page 81).

Adjust the copy density and contrast if you are copying
(see Advanced User's Guide: Adjusting Density and
Contrast).

Make sure Toner Save mode is off in the Touchscreen or the
printer driver.

Make sure the media type setting in the driver matches the
type of paper you are using (see Acceptable paper and other
print media on page 26).

Shake all four toner cartridges gently.

Wipe the windows of all four LED heads with a dry lint free
soft cloth (see Cleaning the LED heads on page 69).

Wipe the windows of all four LED heads with a dry lint free
soft cloth (see Cleaning the LED heads on page 69).

Wipe the scanner glass strip with a dry lint free soft cloth
(see Cleaning the scanner glass on page 70).

Make sure foreign material such as a torn piece of paper,
sticky notes or dust is not inside the machine and around the
drum unit and toner cartridge.

Clean the drum unit (see Cleaning the drum unit
on page 74).
Troubleshooting
107
B