Ink buildup in the internal service station causes the small poorly designed pusher cogs on two drive gears to snap off and the printer is instantly converted to junk. HP was giving new printers out for this problem till Jan 06 or so as they realized it was a poor design. I fixed one with parts from an electronically damaged unit, but usually the blinking lights and "won't print no matter what" problem are sheared gears. Parts are not available. Some people made metal gears (the only answer) on a very short run basis in Europe several years ago because people LOVE this printer. Once you know the problem, it's simple to keep it from happening with some maintenance, but once they shear, it's over. There was some kind of paper-clip fix that was solving the problem even with sheared gears, but I was never able to understand exactly how it was done. Needed a pic or two. Otherwise a great printer, huge cartridges last a long time, great quality on photos too. I have to keep mine running to have a happy wife.
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try this Open the above cover by using screw driver and check the ribbon connecting wires tight them if they r losses and reassemble the printer again and try to print a page. Ur problem is solve Othewise replace it with new printer.
This could mean that a 2-sided document was sent to the printer and the printer is waiting for the page(s) to be reinserted to print on side 2. Check your documentation or the HP support page http://h10025.www1.hp.com/ewfrf/wc/product?product=75045&lc=en&cc=us&dlc=en&lang=en&cc=us for more information.
The power light blinking indicates the printer is preparing to print a document. The resume light indicates 1) needs paper, 2) a paper jam anywhere in the printer, or 3) the ready to print side 2 of the document.
Dear Teleios 'power button blinking without taking a paper to copy' usually means paper jam or no ink error. First ensure you have no paper jam and you just replaced both ink cartridges. If the printer still does not print, or does not print colors or black ink, then the ink must have dried up on printer head/nozzles. You can try using clean nozzles option from hp printer software several times, and see if this fixes the problem. If it does not you will need to physically clean printer heads inside with solvent and cotton. To do this you need to disassemble part of the printer. Having same work done in a service centre should cost around 50 euros. HP DeskJet 3820 InkJet is not an expensive printer, if you cannot fix it with a clean head / nozzles from software you may also consider buying a new one for slightly more than the price of a cartridge change.
If you love it (3820) better learn how to clean the service station or it will shear the gears and be done. See my post under the blinking light problem with 3820s. I really like the printer and wish someone had told me this before mine broke. No answer for your question, but HP.com should have manuals as a pdf download.