HP LaserJet Enterprise M551n User Manual

Paper does not feed automatically
Paper does not feed automatically
Cause Solution
Manual feed is selected in the software program. Load Tray 1 with paper, or, if the paper is loaded, press theOK button.
The correct size paper is not loaded. Load the correct size paper.
The input tray is empty. Load paper into the input tray.
Paper from a previous jam has not been completely removed. Open the product and remove any paper in the paper path.
The paper size is not configured correctly for the input tray....

Improve print quality
You can prevent most print-quality problems by following these guidelines.
●
Use the correct paper type setting in the printer driver
●
Adjust color settings in the printer driver
●
Use paper that meets HP specifications
●
Print a cleaning page
●
Calibrate the product to align colors
●
Check the print cartridges
●
Use the printer driver that be st meets your printing needs
Use the correct paper type setting in the printer driver
Check the paper type setting if you are having any of...

4.Open the  Finishing  menu.
5. Select a type from the  Media-type drop-down list.
6. Click the Print button.
Adjust color settings in the printer driver
Change the color theme for a print job
1.On the File  menu in the software program, click  Print.
2. Click  Properties or Preferences .
3. Click the Color  tab.
4. Select a color theme from the  Color Themes drop-down list.
●Default (sRGB)
: This theme sets the product to print RGB data in raw device mode. When
using this theme, manage color in the...

Change the color options
Change the color options settings for the current print job from the color tab of the printer driver.
1.On the File  menu in the software program, click  Print.
2. Click  Properties or Preferences .
3. Click the  Color tab.
4. Click the  Automatic  or Manual  setting.
● Automatic
 setting: Select this setting for most color print jobs
● Manual
 setting: Select this setting to adjust th e color settings independent from other
settings.
NOTE: Changing color settings manually can...

Always use a paper type and weight that this product supports. In addition, follow these guidelines
when selecting paper:
● Use paper that is of good quality and free of cuts, nicks, tears, spots, loose particles, dust,
wrinkles, voids, staples, and curled or bent edges.
● Use paper that has not been previously printed on.
● Use paper that is designed for use in laser printers
. Do not use paper that is designed only for use
in Inkjet printers.
● Use paper that is not too rough. Using smoother 
paper...

Check the print cartridges
Check each print cartridge, and replace it if necessary, if you are having any of the following
problems:
● The printing is too light or seems faded in areas.
● Printed pages have small unprinted areas.
● Printed pages have streaks or bands.
If you determine that you need to replace a print ca rtridge, print the supplies status page to find the
part number for the correct genuine HP print cartridge.
Type of print cartridge Steps to resolve the problem
Refilled or remanufactured...

HP UPD PS driver●Recommended for printing with Adobe® software programs or with other
highly graphics-intensive software programs
● Provides support for printing from postscript emulation needs, or for postscript
flash font support
HP UPD PCL 5 ●Recommended for general office printing in Windows environments
● Compatible with previous PCL versions and older HP LaserJet products
● The best choice for printing from third-party or custom software programs
● The best choice when operating with mixed...

The product does not print or it prints slowly
The product does not print
If the product does not print at all, try the following solutions.
1.Make sure the product is turned on and that the control panel indicates it is ready.
◦If the control panel does not indicate the product is ready, turn the product off and then on
again.
◦ If the control panel indicates the product is ready, try sending the job again.
2. If the control panel indicates the product has an  error, resolve the error and then try...

The product prints slowly
If the product prints, but it seems slow, try the following solutions.
1.Make sure the computer meets the minimum sp ecifications for this product. For a list of
specifications, go to this Web site: 
www.hp.com/support/lj500colorM551 .
2. When you configure the product to print on some paper types, such as heavy paper, the product
prints more slowly so it can correctly fuse the to ner to the paper. If the paper type setting is not
correct for the type of paper you are using,...

Solve walk-up USB printing problems
●The Retrieve From USB Settings menu does not open when you insert the USB accessory
●
The file does not print from the USB storage accessory
●
The file that you want to print is not listed in the Open From USB menu
The Retrieve From USB Settings menu does not open when you
insert the USB accessory
1. You must enable this feature by using the co ntrol-panel menus or the HP Embedded Web Server
before it can be used.
To enable this feature by using th e control-panel...