Dell B1160 manual Condition Suggested Solutions Curl, An unknown image, Repetitively appears on a

Printing quality problems

Condition		Suggested Solutions
Curl	If the printed paper is curled or paper does not feed into the machine:
	•	Turn the stack of paper over in the tray. Also try rotating the paper 180° in the tray.
	•	Change the printer’s paper option and try again. Go to Printing Preferences, click the Paper tab, and set type to Thin (see
		"Opening printing preferences" on page 32).

•	An unknown image	Your machine is probably being used at an altitude of 1,000 m (3,281 ft) or above.
	repetitively appears on a	The high altitude may affect the print quality, such as loose toner or light imaging. Change the altitude setting for your machine (See
	few sheets
		"Altitude adjustment" on page 107).
•	Loose toner
•	Light print or
	contamination occurs

5. Troubleshooting 147