Manual

Scan-quality problems
Prevent scan-quality problems
The following are a few simple steps you can take to improve copy and scan quality.
●
Use high-quality originals.
●
Load the media correctly. If the media is loaded incorrectly, it might skew, which causes unclear
images. See
Load paper and print media on page 35 for instructions.
●
Adjust the software settings according to how you plan to use the scanned page. See
Scanner
resolution and color on page 64 for more information.
●
If your product frequently feeds more than one page at a time, the separation pad might need to
be replaced. Contact HP. See
www.hp.com/support/LJM1120 or the support flyer that came in the
product box.
●
Use or make a carrier sheet to protect your originals.
Solve scan-quality problems
Problem Cause Solution
Blank pages The original might have been loaded upside
down.
On the flatbed scanner, place the original
document face-down with the upper-left
corner of the document at the corner of the
glass indicated by the icon on the scanner.
Too light or dark The resolution and color levels may be set
incorrectly.
Verify that you have the correct resolution
and color settings. See
Scanner resolution
and color on page 64.
Unwanted lines Ink, glue, correction fluid, or an unwanted
substance might be on the glass.
Clean the flatbed scanner surface. See
Clean the scanner glass on page 65.
Black dots or streaks Ink, glue, correction fluid, or an unwanted
substance might be on the glass.
Clean the flatbed scanner surface. See
Clean the scanner glass on page 65.
The power to the product might have
fluctuated.
Reprint the job.
Unclear text The resolution levels might be set
incorrectly.
Verify that the correct resolution settings are
correct. See
Scanner resolution and color
on page 64.
Optimize and improve image quality
Print-quality checklist
General print-quality problems can be solved by using the following checklist:
1. Make sure that the paper or print media that you are using meets specifications. Generally,
smoother paper provides better results.
2. If you are using a special print media such as labels, transparencies, glossy, or letterhead, ensure
that you have printed by type. See
Change the print driver to match the media type and size
on page 38.
102 Chapter 11 Problem solve ENWW