HP Laser MFP 130 User Guide - Page 162

Condition • An unknown image repetitively appears on a few sheets • Loose toner • Light print or contamination occurs Suggested solutions Your machine is probably being used at an altitude of 1,000 m (3,281 ft) or above. The high altitude may affect the print quality, such as loose toner or light imaging. Change the altitude setting for your machine (see "Altitude adjustment" on page 35). Copying problems Condition Suggested solutions Copies are too Adjust the darkness in copy feature to lighten or darken the backgrounds light or too dark. of copies (see "Changing the settings for each copy" on page 80). Smears, lines, marks, or spots appear on copies. • If the defects are on the original, adjust darkness in copy feature to lighten the background of your copies. • Adjust background in copy setup removes the background color (see "Adjust Bkgd." on page 112). • If there are no defects on the original, clean the scanner (see "Cleaning the scanner" on page 137). Copy image is skewed. • Ensure that the original is aligned with the registration guide. • The transfer roller may be dirty. Clean the inside of your machine (see "Cleaning the machine" on page 134). Blank copies print out. Ensure that the original is face down on the scanner glass or face up in the document feeder. If these steps do not correct the problem, contact a service representative. Image rubs off the copy easily. • Replace the paper in the tray with paper from a new package. • In high humidity areas, do not leave paper in the machine for extended periods of time. Frequent copy paper jams occur. • Fan the paper, then turn it over in the tray. Replace the paper in the tray with a fresh supply. Check/adjust the paper guides, if necessary. • Ensure that the paper is the proper type and weight (see "Print media specifications" on page 171). • Check for copy paper or pieces of copy paper remaining in the machine after a paper jam has been cleared. Toner cartridge produces fewer copies than expected before running out of toner. • Your originals may contain pictures, solids, or heavy lines. For example, your originals may be forms, newsletters, books, or other documents that use more toner. • The scanner lid may be left open while copies are being made. • Turn the machine off and back on. Solving other problems | 162