Hp deskjet 3940 will NOT print

Once you have added either a USB or networked printer to your PC or Mac computer, you can begin sending documents to print. However, on occasion, a print command will create an error on the printer and take it offline, which will prevent all future jobs from printing. To resolve this issue, you will need to change your printer settings from offline to online.

PC Instructions - Open the Start menu and click on the "Printers and Faxes" icon. This will open a window with a list of the printers currently set up on your computer. - Double-click on the icon of the printer you want to change to online. A pop-up window detailing all current print jobs will open. - Go to Printer in the menu bar of the pop-up window and uncheck "Use Printer Offline." This action will change the printer from offline to online.

Mac Instructions - Open System Preferences by clicking on the icon in the Dock. - Go to the Print & Fax control panel under the Hardware category. - Select the printer you want to take online from the list on the left side of the screen. Then click on the "Open Print Queue" button. - Click on the "Resume Printer" button at the top of the queue window to change the printer from offline to online.

Hi, Try these links and look through them, hopefully 1 may of some use to you.
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c02114788&tmp_task=solveCategory&lc=en&dlc=en&cc=uk&lang=en&product=445449

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c02221706&tmp_task=solveCategory&lc=en&dlc=en&cc=uk&product=445449&lang=en

As for the Power light flashing, maybe due to the fact your trying to print while the printer is offline it might flash to notify you or check this link...
http://h10025.www1.hp.com/ewfrf/wc/searchResults?tmp_product=HP+Deskjet+3940+Color+Inkjet+Printer&product=445449&tmp_qt=hp+3940+power+button+&lc=en&dlc=en&cc=uk

Hope you get a good result.. cheers Ytee

1. Check that your ink-cartridge is not empty.

2. Run the HP Support software (supplied/installed with the printer) to run a "print-head-cleaning-cycle".

3. Replace the printer.

check the cable then try

OPEN YOUR LAPTOP AND ONLINE THE PRINTER

i have HP Deskjet 3940 printer,i do not have CD TO INSTALL SOFTWARE.PL; DO THE NEEDFUL

Hi, Try these links and look through them, hopefully 1 may of some use to you.
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c02114788&tmp_task=solveCategory&lc=en&dlc=en&cc=uk&lang=en&product=445449

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c02221706&tmp_task=solveCategory&lc=en&dlc=en&cc=uk&product=445449&lang=en

As for the Power light flashing, maybe due to the fact your trying to print while the printer is offline it might flash to notify you or check this link...
http://h10025.www1.hp.com/ewfrf/wc/searchResults?tmp_product=HP+Deskjet+3940+Color+Inkjet+Printer&product=445449&tmp_qt=hp+3940+power+button+&lc=en&dlc=en&cc=uk

Hope you get a good result.. cheers Ytee

UNINSTALL AND REINSTALL THE DRIVER SOFTWARE BRO...................

IT MAY LEAD U 2 A SOLUTION.........

TRY IT

I requere drivers to install my printer 3940