HP Color LaserJet 2550L User Manual

Repetitive defects on the back
Marks repeatedly appear at even intervals on the unprinted side of the page.
●Internal parts might have toner on them. The problem will likely correct itself after a few
more pages.
●Clean the printer. See 
Cleaning the printer.
●The fuser might be damaged. Contact HP Customer Care. See 
HP customer care or the
support flyer that came in the printer box.
●If the problem is not resolved, see 
If the problem is not resolved.
Misformed characters
The printed page contains...

Curl or wave
The printed page is curled or wavy.
●Turn over the stack of paper in the tray. Also try rotating the paper 180 degrees in the
input tray.
●Set the correct Type in the printer driver. Heavier paper might take longer to print.
●Open the rear output door to print to the straight-through paper path.
●Check the paper type and quality. Both high temperature and humidity will cause paper
curl. Use a different paper, such as high-quality paper intended for laser printers. See
Print-media...

Wrinkles or creases
The printed page contains wrinkles or creases.
●Make sure that paper is loaded properly.
●Turn over the stack of paper in the input tray, or try rotating the paper 180 degrees in the
input tray.
●Open the rear output door to print to the straight-through paper path.
●Check the paper type and quality. Use a different paper, such as high-quality paper
intended for laser printers. See 
Print-media specifications.
●If the problem is not resolved, see 
If the problem is not resolved.
Toner...

Random image repetition
If an image that appears at the top of the page (in solid black) repeats farther down the page
(in a gray field), the toner might not have been completely erased from the last job. The
repeated image might be lighter or darker than the field in which it appears.
●In your program, change the tone (darkness) of the field that the repeated image
appears in.
●In your program, rotate the whole page 180 degrees to print the lighter image first.
●Change the order in which the images are...

NoteWhenever you are experiencing color-related issues, calibrate the printer before trying any
other steps. See 
Calibrating the printer.
Only black prints
Missing or incorrect
colorColor prints
inconsistently
Colors do not match
Color pages have
inconsistent finish
Only black prints
Only black is printing when the document should be printing in color.
●Color mode is not selected in your program or printer driver. Select color mode instead
of grayscale mode.
●The correct printer driver is not selected...

Missing or incorrect color
One or more colors are not printing, or are inaccurate.
●Perform a calibration. See Calibrating the printer.
●You have changed the color settings manually. Return the color setting to Automatic.
See 
Changing the color settings.
●Make sure that the sealing tape has been completely removed from the print cartridge.
●Turn the printer off and then on again.
●Your print media does not meet the specifications for this printer. Use a different paper,
such as a high-quality paper...

Colors do not match
The colors on the printed page do not match the colors as they appear on the screen.
●Perform a calibration. See Calibrating the printer.
●The colors on your computer monitor differ from the printer output. Try selecting Screen
Match in the Color tab of the printer driver.
●Print the Configuration and Supplies Status pages to ensure that they print correctly. If
not, the problem is with the printer.
●Try printing from a different program or one of the other printer drivers. For...

118Chapter 7 Problem solvingENWW
 

A
Accessories and ordering
information
The following list of accessories was current at the time of printing. Ordering information and
availability of the accessories might change during the life of the printer. For the most current
ordering information, visit the most appropriate of the following websites:
●North America: http://www.hp.com/go/ordersupplies-na
●Europe and Middle East: http://www.hp.com/go/ordersupplies-emea
●Asia Pacific countries/regions: http://www.hp.com/go/ordersupplies-ap
●
Latin...

Supplies
Product nameDescriptionPart number
Black print cartridgeLife of 5,000 pages at 5
percent coverage.Q3960A
Cyan print cartridgeLife of 4,000 pages at 5
percent coverage.Q3961A
Yellow print cartridgeLife of 4,000 pages at 5
percent coverage.Q3962A
Magenta print cartridgeLife of 4,000 pages at 5
percent coverage.Q3963A
Cyan print cartridgeLife of 2,000 pages at 5
percent coverage.Q3971A
Yellow print cartridgeLife of 2,000 pages at 5
percent coverage.Q3972A
Magenta print cartridgeLife of 2,000 pages...