HP LaserJet M9040M9050 Multifunction Printer series - Manual (Page 243)

Solve copy problems
Prevent copy problems
The following are a few simple steps you can take to improve copy quality:
● Copy from the flatbed scanner. This will produce a higher quality copy than copying from the
automatic document feeder (ADF).
● Use quality originals.
● Load the media correctly. If the media is loaded incorrectly, it might skew, causing unclear images
and problems with the OCR program. See
Load paper and print media on page 85 for instructions.
● Use or make a carrier sheet to protect your originals.
Image problems
Problem Cause Solution
Images are missing or faded. The print cartridge might be defective. Replace the print cartridge. See Manage
supplies on page 179 .
The original might be of poor quality. If your original is too light or damaged,
the copy might not be able to
compensate, even if you adjust the
darkness. If possible, find an original
document in better condition.
The original might have a colored
background. Touch Copy , and then touch Image
Adjustment. Adjust the Background
Cleanup slider to the right to decrease
the background.
Vertical white or faded stripes appear on
the copy. The media might not meet
HP specifications. Use media that meets HP specifications.
See
Supported paper and print media
sizes on page 81 .
The print cartridge might be defective. Replace the print cartridge. See Manage
supplies on page 179 .
Unwanted lines appear on the copy. The flatbed scanner or the ADF glass
might be dirty. Clean the flatbed scanner or the ADF
glass. See
Clean the MFP on page 170 .
The photosensitive drum inside the print
cartridge might have been scratched. Install a new HP print cartridge. See
Manage supplies on page 179 .
Black dots or streaks appear on the
copy. Ink, glue, correction fluid, or an unwanted
substance might be on the automatic
document feeder (ADF) or flatbed
scanner. Clean the device. See Clean the MFP
on page 170 .
Copies are too light or dark. The darkness setting needs to be
adjusted. Touch Copy , and then touch Image
Adjustment. Adjust the Darkness slider
to lighten or darken the image.
Text is unclear. The sharpness setting needs to be
adjusted.
The image should be optimized for text.
To adjust the sharpness, touch Copy ,
and then touch Image Adjustment.
Adjust the Sharpness slider to the right to
increase the sharpness.
ENWW Solve copy problems 229