BT DF450 manual Maintenance

Maintenance

Maintenance

To fit a new print head			1 Pull back the clip on
You can buy a ready assembled ink cartridge			the side of the print
and print head and install it as shown in the			head to release the ink
Setting Up section.			cartridge and remove
			it from the print head.
To fit a new ink cartridge		2	2 Remove the protective
It is less expensive to simply replace the ink
	1
cartridge. One print head should last for eight			film from the nozzle of the
ink cartridges.			new ink cartridge and push
			it into the print head until it
• Open the printer cover.			clicks into place.
			Close the printer cover.
	The DF450 will automatically test and clean the
	print nozzles, and then generate a test print-out
	containing a graduated scale, graphic images
	and text. Following the print-out, the display
	will show CHECK PRINT OUT.
	If the graduated scale is uninterrupted and the
The ink cartridge is located inside the print head.
The print head does not need to be removed while	dark areas do not contain white lines, the print
changing the ink cartridge.	quality is to be considered satisfactory. If not,
	repeat the procedure.

•Press 1 if the test print is acceptable.

•Press 0 to repeat the test.

If the print head is still unsatisfactory after a number of tests, replace the printhead.

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