Lexmark 279 manual Repeating defects appear on prints, Troubleshooting 212

Troubleshooting		212
Action	Yes	No
Step 1	Go to step 2.	The problem is solved.

aReinstall the imaging unit.

1Remove the toner cartridge, and then the imaging unit.

Warning—Potential Damage: Do not expose the imaging unit to direct light for more than 10 minutes. Extended exposure to light may cause print quality problems.

2Install the imaging unit, and then the cartridge.

bResend the print job.

Is the printer printing solid black pages?
Step 2	Contact customer	The problem is solved.
Replace the imaging unit, and then resend the print job.	support.
Is the printer printing solid black pages?

Repeating defects appear on prints

Action	Yes	No
Step 1	Go to step 2.	1 Check if the
Measure the distance between the defects.		distance between
Check for a distance between the defects that equals:		the defects equal
		to 80 mm (3.15 in.)
• 97 mm (3.82 in.)
		2 Take note of the
• 47 mm (1.85 in.)
		distance, and then
• 38 mm (1.5 in.)
		contact customer
		support at
Is the distance between defects equal to one of the listed measurements?		http://support.le
		xmark.com or
		your service
		representative.
Step 2	Contact customer	The problem is solved.
Replace the imaging unit, and then resend the print job.	support at
	http://support.lexma
Do the repeating defects still appear?	rk.com or your service
	representative.