Canon MP-C635 user manual Print Quality Problems, Problem Cause Solution

Print Quality Problems

Problem	Cause	Solution
Print quality is not what	The paper you are using	Make sure you are using
you expect; print is not	may not be supported by	the recommended paper
clear; splashed or missing	the unit.	(see page A-1).
dots, white streaks
	You may be printing on the	Some paper has a right side
	wrong side of the paper.	for printing. If the print
		quality is not as clear as you
		would like it to be, try turning
		the paper over and printing on
		the other side.
	The print head nozzles	Clean the print head (see
	may be clogged.	page 7-8); repeat cleaning
		if necessary. If print quality is
		not recovered after executing
		the cleaning five times, replace
		the BJ cartridge.
	BJ cartridge may be	Make sure the BJ cartridge
	installed incorrectly.	and/or BJ tanks are installed
		correctly.
	A BJ tank in the BC-21e	Replace BJ tanks as necessary
	Color BJ Cartridge may be	(see page 7-16).
	empty.
	The print head may be	The BJ cartridge may need
	worn out.	to be replaced. Replace it with
		a new one (see page 7-11).
Output appears jagged	The resolution selected for	Check your printer driver to
	the MultiPASS printer driver	see what Print Mode you have
	may be Fast (180 dpi).	have selected. Changing the
		Print Mode to Normal or
		Best will improve the quality.

Troubleshooting

Chapter 8 Troubleshooting 8-19