Brother HL-4000CN - Manual (Page 117)

6-9
Symptom Possible Cause Action
Dirt in the paper path. Print several blank sheets. Recurring smudges
The print head cartridge or transfer
roll cartridge is old or damaged. Check the print head cartridge and
transfer roll cartridge and replace
them as necessary.
See 8.2.2 “Replacing the Print Head
Cartridge”
See 8.3.2 “Replacing the Transfer
Roll Cartridge”
Is the paper damp? Replace the paper.
Reference
4.2 “Loading Paper” Ink smears when rubbed.
Is the media suitable? Replace the media with a
recommend size and type, and
confirm that your printer driver
settings are correct.
See 4.1 “Suitable and Unsuitable
Paper Types”
Hair-like marks appear
around black halftone
printing The paper was left unwrapped for a
long time (especially in a dry
environment). Replace the paper.
See 4.2 “Loading Paper”
Is the media suitable? Replace the media with a
recommend size and type, and
confirm that your printer driver
settings are correct.
See 4.1 “Suitable and Unsuitable
Paper Types” Shadows appear around
areas of dense black
printing.
The transfer roll cartridge is old or
damaged. Replace the transfer roll cartridge.
See 8.3.2 “Replacing the Transfer
Roll Cartridge”
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