HP Deskjet 1120C, test page prints perfectly, but I get a blank page when printing B. and W. from any other program

SOURCE: HP Deskjet 6940 printer - printing but no ink transferred to page itself

I have the same issue, but with a HP DJ 3550, I´ve heard about the data execution protection (DEP) migth help when changing the options, but still have to try it

Posted on Jul 17, 2008

SOURCE: hp F4200 deskjet problem

Please follow the best option that are given : 
1) Check all the cable. 
2) Check you cartridge position and install it correctly. 
3) Remove the old copy of your driver and try to download latest driver from http://h20180.www2.hp.com/apps/Nav?h_pagetype=s-002&h_lang=en&h_cc=us&h_product=14438&h_client=S-A-R163-1&h_page=hpcom&lang=en&cc=us and install it.
4) If cartridge condition or its refill time is over then try to use new cartridge.

Posted on Feb 22, 2009

SOURCE: the printer acts like it is printing, but doesnt actually print

1. Clean the scanner/copier glass and white scan backing on the inside of the top lid with glass cleaner. If there is any foreign material on the glass or white scan backing, the scanner will include it as part of the image resulting in extra pages. OR FOLLOW THESE STEPS This normally occurs because one of the ink cartridges is low on ink. To fix this, do the following:

1. Check the amount of ink remaining in the ink cartridges by checking the Estimated Ink Levels tab in the HP Toolbox. The HP Toolbox can be opened by one of the following methods:
   • To open the HP Toolbox click Start , click Programs ( All Programs in Windows XP), click Hewlett-Packard , locate and click the HP all-in-one product folder, and then click HP Toolbox .
   • If the HP Toolbox cannot be found using the above method, it can be opened from the HP Director. Click Settings , click Printer Settings , and then click Printer Toolbox .
   Replace any ink cartridge that is low on ink.
2. Print a self-test page from the all-in-one. If the colors are correct on the self-test page and are not faded or light, continue troubleshooting with Step 3. If one or more colors are incorrect, missing, or fade out, the ink cartridge should be replaced. To print a self-test page:
   1. Press the Setup or Menu button until Print Report appears in the display, and then press Enter .
   2. Press the Setup or Menu button until Self-Test appears in the display, and then press Enter .
3. If the colors are only slightly off, some all-in-ones have a Color Intensity setting that can be adjusted. Increase the Color Intensity slider to enhance the colors. If your all-in-one has this option, it can be found in the Copy screen when using the Director to setup the copy. For more information on this setting, review the copying information in the Reference Guide or click Help in the Director to view the help files.
4. When printing on some photo papers, the black areas may have a greenish cast when photo paper is the selected paper type. Try changing the paper type setting to HP Bright White paper or Plain paper.
5. Perform the steps listed in the Step 3 of the 'White lines through copies' section above to clean the ink cartridges and then make another copy to see if the problem still exists.
6. Service your product, if the problem still exists. (PLEASE TAKE NOTE OF QUESTION 6)

Posted on Jun 16, 2009

SOURCE: HP Deskjet F4200, prints blank page

I went into print settings after failing the diagnostics.
Printing normally would just feed the paper through with no ink.
I set the settings to specifically "Fast Draft" and adjusted
minor things like paper to A4 and color to grayscale for the
print job at hand.

Bingo!

Posted on Dec 30, 2009

SOURCE: My HP Deskjet F380 will

the body of text of the test page is black ink. From what you describe, the print heads are clogged. Most HPs use cartridges that have the head built in, but if not used for an externded period they can dry up and clog.
Try repeated head cleanings (10 or more) see if any change. If none, try new HP ink cartridges

Posted on Jul 12, 2011