Question about HP DeskJet 3940 InkJet Photo Printer

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NOT WORKING i requst sir i am using the 3940 printer but presently this priter paper jam OR the indication bulb is the bliking continuley. what is the problem si but paper canot put in the printer but can display pape jam .so please solution &one moe requst sir pls give me the service engineer in the my locality, my compny address PAC COMPUTERS 606,MAITHRI VANAM. S.R.NAGAR HYDERABAD (A.P). INDIA.500038. PLS CONTACT MY NO SIR :+91-9966221075

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Try unplugging ALL power and USB cables. ESPECIALLY IMPORTANT... Unplug the USB cable from the back of the computer.

Then power down your computer and start it up again.

This worked for me last year when I had the problem you are having.

Posted on Feb 04, 2008

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My HP 3940 Printer Had Paper Jam But We Removed All The Papers Already But It Just Keeps Saying Paper Jam

Make sure that all of the doors are shut, all trays are in properly, shut off printer, unplug from the wall. Press the power button while unplugged to clear any residual power. Wait a couple of minutes, plug in, and power up the printer. Good luck!!

May 21, 2011 | HP DeskJet 3940 InkJet Photo Printer

1 Answer

Hp 3940 power light blinks no paper jam crtridge tray is at left does not come to centre on opening cover

Please follow the directions in the link below:
The Power light (c01602202.gif ) might blink (flash) or be off. A blinking Power light indicates that the product requires maintenance, or is in an error state.

Feb 26, 2011 | HP DeskJet 3940 InkJet Photo Printer

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URGENT .. really need help sir.. my Printer Canon MX328, don;t want to feeding the paper. i don't know why . and sometime if the printer can feeding, 80% gonna be jammed. please help !

From your description,it seems that other material present inside your printer and blocking the paper path. Sometimes,broken paper feeder indicates the same way. I recommend you to bring your printer to the nearest service center unless you are quit familiar with assembly and reassembly of this printer.

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Feb 19, 2011 | Canon Printers & Copiers

1 Answer

Canon mx310 indicates paper jam but no paper

The printer has several switches in it to detect paper jams. When paper feeds in it trips the first one indicating that paper is present. Another switch further along the feed path indicates that the paper is feeding okay.
Your problem can be a jammed switch (loose scrap of paper), a broken switch, a switch disconnected from the controller board or a possible bad controller board.
One thing you didn't mention was does it respond the same with paper loaded? It might be that the first switch is looking for some and not finding it, so it is programmed to assume a jam.

Aug 25, 2010 | Canon PIXMA MX310 All-In-One Printer

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Dear Sir,,

plz folow this step,

Follow these steps in the order presented to resolve the issue. Step one: Remove any loose paper Remove any loose sheets of paper from the input tray and the output tray. CAUTION: Do not remove jammed paper at this stage. Trying to clear jammed paper from the front of the product can damage the print mechanism. Step two: Clear the paper jam from the rear of the All-in-One CAUTION: Do not try to clear a paper jam from the front of the product, which can damage the print mechanism.
  1. Press the Power button ( spacer.gif c016022020.gif spacer.gif spacer.gif View Full Image spacer.gif) to turn off the product.
  2. Turn the product to access its rear side.
  3. Press in the tab on the left side of the rear access door to release it, and then pull the rear access door out to remove it. Figure 2: Remove the rear access door spacer.gif c01422030.gif spacer.gif spacer.gif View Full Image spacer.gif
  4. Gently remove any jammed paper from the rollers.
  5. Replace the rear access door, with the right side inserted first.
  6. Gently push the door forward until it snaps into place. Figure 3: Replace the rear access door spacer.gif c01422031.gif spacer.gif spacer.gif View Full Image spacer.gif
  7. Open the front access door, and then remove any torn pieces of paper from the opening. Figure 4: Open the front access door spacer.gif c01669517.gif spacer.gif spacer.gif View Full Image spacer.gif
  8. Press the Power button ( spacer.gif c016022020.gif spacer.gif spacer.gif View Full Image spacer.gif) to turn on the product, and then try printing again.

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Thanks For Your TIme,

Apr 08, 2010 | HP PSC 1510 All-In-One InkJet Printer

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My hp 3940 had a jam. I removed the paper now it

Hello there
i know you have cleared the jam but i would go back and really look closley at the paper path and the internals a small piece off of a paper can cause this to claim it has a jam also if you turn off the printer and use canned air to blow out the whole insides this will help too also clean offf any lenses with a eyeglass cleaner ok ?
best regards mike

Aug 06, 2009 | HP DeskJet 3940 InkJet Photo Printer

4 Answers

HP Deskjet 3940 (Paper Jam)

I have a HP Deskjet 3940 printer. And similarly to this problem here I had a paper jam that would not clear, despite removing all the paper that was stuck in it, and following all 4 steps stated on the HP website. Such as taking the back cover off and blowing dust away and turning it off and on, etc.

None of these steps worked for me and consequently I couldnt get any new jobs to print - kept saying 'paper jam'. I was about to head down the shop to buy a new printer when i tried one last thing, which HAS fixed the problem!

I put in a large stack of paper onto the feeder. and then pushed it forcefully in and out repeatedly. To my amazement this has solved the paper jam. As a very last resort, might be worth trying this?

Jul 25, 2008 | HP DeskJet 3940 InkJet Photo Printer

1 Answer

Printer printing prblem

do not load the printer with lots of papers... reduce them...

Jun 22, 2008 | Epson Stylus 880 InkJet Color Printer

1 Answer

Light blinking

Sounds like you have a paper jam somewhere. Open up the printer and look for some paper. If the page is still in the machine, sometimes you can gently pull ever so slowly and finish getting the paper out of the machine. Power cycle the machine and if it was a jam, you should be fine.

Jun 07, 2008 | HP DeskJet 3940 InkJet Photo Printer

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