Brother 1840C - Manual (Page 126)

TROUBLESHOOTING AND ROUTINE MAINTENANCE 10 - 13
How to improve print quality
Cleaning the print head
To ensure good print quality, the machine will regularly clean the
print head. You can start the cleaning process manually if needed.
Clean the print head and ink cartridges if you get a horizontal line in
the text or graphics on your printed pages. You can clean Black only
or three colours at a time (Cyan/Yellow/Magenta), or all four colours
at once.
Cleaning the print head consumes ink. Cleaning too often uses ink
unnecessarily.
Caution
Do NOT touch the print head. Touching the print head may cause
permanent damage and may void the print head’s warranty.
1
Press Ink Management .
2
Press ▲ or ▼ to select Cleaning .
Press Menu/Set .
3
Press ▲ or ▼ to select Black , Color or All .
Press Menu/Set .
The machine will clean the print head. When cleaning is
finished, the machine will go back to standby mode
automatically.
■
If you clean the print head at least five times and the print
has not improved, call your Brother dealer for service.
■
The print head controls the flow of ink using tiny pumps to
produce characters or images onto the page.
■
We recommend having the machine powered up at all times.
The periodical cleaning is performed to prevent the drying up
of the ink in the head nozzles and is achieved by purging ink
from the print head. This process is performed automatically,
on average, every two days dependant on room
temperature. The machine is set so that this process occurs
in the early hours of the morning.
■
When the cleaning process is finished, the machine will
automatically return to its previous state.