I have a HP Photosmart C5280 printer. There is no explanation about printing envelopes. Can envelopes be printed? If so how?

Yes you can print an address on an envelope. Do you have Microsoft Office? If so, click on new office document and click the tab that says Letters & faxes (for versions before 2007) and choose the label wizard. When the window opens, click the tab that says envelope instead of label and follow the prompts to type in the information you want to print on yoru envelope.

If you have Office 2007 - or newer, click on new office document and then choose blank document. Click on the tab at the top that says mailings and then choose envelope and type in the information you want to print on your envelope. Then click on file, and print. You will need to load your envelopes in the printers tray and put them in the correct direction according to the settings your machine requires. You might need to waste a few envleopes until you get it right.

Yes this can happen.
Inkjet printers need to be used frequently to prevent inkdrying out in the print head nozzles.
If the print head cleaning maintenance routine does not clear the blockages,then print head needs replacing, but it may be expensive.
It may be more cost effective to buy a later model and better printer thanreplace the print head.

The easiest way to print an envelope is to use Microsoft Word. If you have the software installed, go to start and then create new office document and click blank document. When the document opens, click on help and type in envelope. This will give you instructions on how to create an envelope and save a copy to your document. When you save a copy to your document, it gives you a picture of an envelope which helps to create it. Then click on file, and slide down the print and click ok. Creating the envelope through Word helps to change the printers paper settings. Word will send a signal to the printer to tell it what type of paper and size of envelope you are creating.

Hope this helps?

yes,you can print envelopes on photosmart 8450 Photo Printer. here are the links for loading and printing envelopes: http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00032038&cc=us&lc=en&dlc=en&product=402150&tmp_track_link=ot_search
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00248567&cc=us&lc=en&dlc=en&product=402150&tmp_track_link=ot_search

Did you install vista drivers for the printer?

Trial and error.

This is a direct quote from HP.

Media Types, "Paper (plain, inkjet, photo), envelopes, transparencies, labels, cards, HP's premium media, iron-on transfers, borderless media, panorama"
So to answer your question, it would be yes.
I hope this helps and good luck!

Try to reinstall the driver on your printe.

I also contacted HP and they directed me to a workaround which I have not implemented yet!

Manual here: Manuals

Here is the support page with more documentation: HP Photosmart C5280 All-in-One Printer