HP Color LaserJet CM2320nf User Manual

ProblemCauseSolution
Black dots or streaks appear on
copy jobs only.Ink, glue, correction fluid, or an unwanted
substance might be on the automatic
document feeder (ADF) or flatbed scanner.Clean the product. See Clean the product
on page 191.
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.
The product may not be calibrated.Calibrate...

ProblemCauseSolution
More than one sheet feeds at one
time.The media tray might be overloaded.Remove some of the media from the tray.
See 
Load paper and print mediaon page 59.
The media might be wrinkled, folded, or
damaged.Verify that the media is not wrinkled, folded,
or damaged. Try printing on media from a
new or different package.
The product does not pull media
from the media input tray. The product might be in manual feed mode.●
If 
Manual  appears on the product
control-panel display, press OK...

Performance problems
ProblemCauseSolution
No copy came out.The input tray might be empty.Load media in the product. See Load paper
and print media on page 59 for more
information.
The original might have been loaded
incorrectly.In the automatic document feeder (ADF),
load the original with the narrow side forward
and the side to be scanned facing up.
Place the original document face-down on
the flatbed scanner with the upper-left
corner of the document at the corner
indicated by the icon on the...

Scan problems
Solve scanned-image problems
ProblemCauseSolution
The scanned image is of poor
quality.The original might be a second-generation
photo or picture.●
To eliminate the patterns, try reducing
the size of the image after scanning.
● Print the scanned image to see if the
quality is better.
● Verify that the resolution settings are
correct for the type of scan job that you
are performing. See 
Scannerresolution and color on page 107
.
● For best results, use the flatbed
scanner for scanning...

ProblemCauseSolution
Part of the image did not scan.The original might have been loaded
incorrectly.Load the original on the flatbed glass or use
the media guides when you load the
originals into the ADF. See 
Load originals forscanning on page 98.
A colored background might be causing
images in the foreground to blend into the
background.Try adjusting the settings before you scan
the original or enhancing the image after you
scan the original.
The original is longer than 381 mm (15
inches).The maximum...

Scan-quality problems
Prevent scan-quality problemsThe following are a few simple steps you can take to improve copy and scan quality.
●Use the flatbed scanner, rather than the automatic document feeder (ADF) input tray, to scan.
● 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 59
 for instructions.
● Adjust the software settings according to how you plan to use the scanned...

ProblemCauseSolution
Communication errors on the PCOne or more of the printer cables is loose.Check the printer cables and make sure they
are plugged in securely.
The product is not on.Turn the product on.
If the product is connected through a
network, the IP address may have changed.Verify that the IP Address for the product is
correct.
Antivirus, antispyware, or firewall software
may be interfering with communication.Consult the antivirus, antispyware, or
firewall software documentation.
The product...

Fax problems
To solve fax issues, see Solve fax problems on page 147.
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. See 
Paper and
print media on page 53. 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...

Change print-quality settings for all future jobs
NOTE:For Macintosh instructions, see Change printer-driver settings for Macintosh on page 36.
For Windows 2000:
1. In the Windows system tray, click  Start, select  Settings , and then click  Printers.
2. Right-click the product icon.
3. Click  Properties  or Printing Preferences .
4. Change the settings, and click  OK.
For Windows XP:
1. In the Windows system tray, click  Start, click  Control Panel , and then click  Printers and Faxes .
2. Right-click...

Network problems
Verify that the product is on and online
Check the following items to make sure the product is ready to print.
1.Is the product plugged in and turned on?
Make sure that the product is plugged in and turned on. If the problem persists, you might have a
defective power cable, power source, or product.
2. Is the product  Ready light on?
If the light is blinking, you might need to wait until the current job is completed.
3. Is the product control-panel display blank?
●Make sure the product...