Brother International 4000CN Users Manual - English - Page 117

See 8.2.2 Replacing the Print Head

Page 117 highlights

Symptom Recurring smudges Possible Cause Dirt in the paper path. The print head cartridge or transfer roll cartridge is old or damaged. Action Print several blank sheets. 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" Ink smears when rubbed. Is the paper damp? Is the media suitable? 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. Reference 4.2 "Loading Paper" 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" Replace the paper. See 4.2 "Loading Paper" Shadows appear around areas of dense black printing. Is the media suitable? The transfer roll cartridge is old or damaged. 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" Replace the transfer roll cartridge. See 8.3.2 "Replacing the Transfer Roll Cartridge" 6-9

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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”