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HP Officejet K7100, K7103, and K7108 Printer Series - Missing Colors in Printout

Issue
The printer is working, but the colors in the printed output are not the expected colors. The display might look as if only one color has printed, as if a color has not printed, or as if the wrong colors have been printed.
Solution
Print and evaluate a diagnostic page to see if the cartridges or printer is causing the problem.
Step one: Print a diagnostic page
  1. Load plain paper in the main tray.
  2. Press and hold the Power button.
  3. Press the Cancel button.
  4. Release both buttons. The test page prints.
Step two: Note which cartridges printed which areas of the diagnostic page
Identify which cartridge printed which part of the diagnostic page, so that if you find defects on the page, you know which cartridge is the problem.
However, you can install different combinations of ink cartridges in your printer, and different cartridge combinations print different diagnostic page patterns. The diagnostic page might not look exactly like the example presented here, but the right and left cartridges print in the same areas of the page no matter which cartridges are installed.
    Figure : Diagnostic page layout (the patterns in each area might look slightly different on your page)
  1. Printed by the right cartridge
  2. Printed by the left cartridge
  note:
If you are printing in reserve mode (one cartridge is missing), the area of the diagnostic page where that cartridge prints is blank.
Step three: Check ink levels
  note:
If you have installed a refilled or remanufactured ink cartridge, or a cartridge that has been used in another product, the ink level indicator is inaccurate or unavailable.
Look in the middle of the diagnostic page. The bars with "E" (for "empty") and "F" (for "full") at each end show the ink levels in the cartridges. As ink is used, the solid color changes to a faded color.
Figure : Left (tri-color) cartridge almost full - right cartridge empty
Figure : Both left and right cartridges almost full
Step four: Look for defects
In general, if the printer and print cartridges are working properly, the patterns (which look like grids of lines) contain few or no missing lines. Also, the colors of the patterns and bars should be approximately the same as the color dots on the print cartridge label.
  note:
Do not compare the colors on your diagnostic page to the colors on this Web page. Unless your monitor is calibrated, the colors are not correct. Instead, compare the colors on the page to the color dots on the print cartridge label. While the color dots might not be perfectly accurate, they are likely to be more accurate than the colors on the monitor.
Missing lines or streaked bars
If a pattern shows more than a few missing lines, or a bar is streaked, that print cartridge is not functioning properly.
Figure : The right cartridge (a photo cartridge) shows missing lines and a streaked bar - the cartridge is not functioning properly
Figure : The left cartridge (a tri-color cartridge) shows missing lines and a streaked bar - the cartridge is not functioning properly
If your diagnostic page shows missing lines or streaked bars, click here to continue troubleshooting. (c00832192) (in English)
Color mix
If the color of the patterns or bars is different from the color dots on the cartridge label, the cartridge is not functioning properly.
Figure : Color dots on the left (tri-color) cartridge label
Figure : The color of one of the left cartridge bars is different from the color on the cartridge label - the cartridge is not functioning properly
If your diagnostic page shows colors that are different from the colors on the cartridge label, click here to continue troubleshooting (c00832204) (in English).
Missing colors
If any of the color blocks or patterns is entirely missing, the cartridge is not functioning properly.
Figure : The yellow pattern and bar for the left (tri-color) cartridge is missing
If any of the patterns or color blocks is entirely missing, click here to continue troubleshooting. (c00832204) (in English)
Ink smears
If the diagnostic page shows smeared ink, you might need to clean your cartridges.
Figure : Left (black) cartridge shows smeared ink
If your diagnostic page shows smeared ink, click here to continue troubleshooting. (c00726682) (in English)
If no defects appear on the diagnostic page, the cartridges and product are probably working correctly. Click here to continue troubleshooting (c00211601) (in English).
Step six: Service the product
Service or replace your HP product if you completed all preceding steps.
To see if your product is still under warranty, go to the warranty check website http://www.support.hp.com/checkwarranty. Contact HP Support to schedule a repair or replacement. If you are in Asia Pacific, Contact HP Support to find a local service center in your area.
Repair fees might apply for out-of-warranty products.

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