HP LaserJet M1120 HP LaserJet M1120 MFP Series User Guide - Page 107
Image problems, cartridge might have been scratched.
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Image problems Problem Images are missing or faded. Cause The print-cartridge might be defective. The original might be of poor quality. The contrast settings might be set incorrectly. The original might have a colored background. Vertical white or faded stripes appear on the copy. The media might not meet HP specifications. The print-cartridge might be defective. Solution Replace the print cartridge. See Print cartridge on page 73. If your original is too light or damaged, the copy might not be able to compensate, even if you adjust the contrast. If possible, find an original document in better condition. Use the control-panel Lighter/Darker button to change the contrast setting. Colored backgrounds might cause images in the foreground to blend into the background, or the background might appear in a different shade. If possible, use an original document without a colored background. Use media that meets HP specifications. Replace the print cartridge. See Print cartridge on page 73. Unwanted lines appear on the copy. AaBbCc AaBbCc AaBbCc AaBbCc AaBbCc The flatbed scanner might be dirty. The photosensitive drum inside the print cartridge might have been scratched. Clean the flatbed scanner. See Clean the scanner glass on page 65. Install a new HP print cartridge. See Print cartridge on page 73. Black dots or streaks appear on Ink, glue, correction fluid, or an unwanted Clean the flatbed scanner. See Clean the the copy. substance might be on the flatbed scanner. scanner glass on page 65. The power to the product might have fluctuated. Reprint the job. Copies are too light or dark. The printer driver or product software settings may be incorrect. Verify that the quality settings are correct. See the product software Help for more information about changing the settings. Text is unclear. The printer driver or product software settings may be incorrect. Verify that the quality settings are correct. Verify that the EconoMode setting is off. See the product software Help for more information about changing the settings. ENWW Solve image-quality problems 97