Can I print on my hp 6122 deskjet with only a black ink cartridge? I have no color ink.

The HP DeskJet 6122 can print with both or only one ink cartridge installed. The printer driver includes an option to print in gray scale as a substitution for color. If you choose to print a document that has a color other than black and white with only a black cartridge installed, I recommend you select the gray scale print option. To select gray scale, select the printer properties and check the box for gray scale rather than color printing. This selection can be made either at the time a document is ready to print (ie., a one time selection, using the "Properties" box in the print options window), OR as a permenant setting using the Control Panel, Printers, HP DeskJet 6122, "Properties" window. Once changed in the general printer properties, these settings remain active anytime the HP DeskJet 6122 printer is selected to print a document.

you connect it to your computer , I mean software , you can determine which ink needs to be change it

No. You must have ink in all cartridges for the printer to work.

Thanks for your visit today.

Use the HP Printer Assistant software tools to run a "head-cleaning" cycle -- the problem is not with the ink (there is plenty of it) but with the print-heads (that **** the ink, and then spray it onto the paper). Some of the jets are clogged, and so you get "white-stripes".

This printer uses all 4 inks to make black by default. You have run out of magenta in the color cartridge. Go to printing preferencies, Color tab. Check Print in Grayscale and tick "Black only" to disable color use.

Hi There

Yes you have to have all the inks in for it to work, the printer knows if 1 of the inks is not in.

Take care all the best Pineworks

Your printer needs some manual servicing.
It's advised that you leave it for a qualified technician to do that.
From the problem you described, the encoder sensor may be causing this problem.

did you recalabrate after changing cartridges? and if you di is the color printer head bad? run the hp test software at www.hp.com to troubleshoot your problem.

Have you tried replacing the cartridges? Some programs such as Adobe Reader will generate a "black" equivalent from the color cartridge. In this case, if the color cartridge is low in red, the outcome will be blue. This would signify that the color cartridge needs to be replaced. HP supplied a utility program for the HP6122 to detect and report ink levels. If you have this utility, check the levels. The utility will only work if the computer is directly connected to the printer -- not thru a print server. If you don't have the utility, you should be able to get it at the HP website http://h20000.www2.hp.com/bizsupport/TechSupport/DriverDownload.jsp?prodNameId=83028&lang=en&cc=us&taskId=135&prodTypeId=18972&prodSeriesId=88749

You might find that both the black and the color cartridges are out of ink. Some print drivers can detect when the black cartridge is empty, then attempts to print a black equivalent using the color cartridge.

Buy new color and black HP only cartridges.