Question about HP LaserJet 2840 Printer

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Problems scanning with the hp 2840

When i try to scan the computer screen says check connection the computer and the scanner are having problems communicating. I currently have to cords going from the machine to the computer. What is the problem?

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  • 12 Answers

Do you have both the ethernet and the USB cable attached at the same time? I've seen issues where this has been the cause. Pick one connection method and stick with it. I suggest the USB.

Posted on Aug 06, 2010

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2840 laser printer only prints on right side and nothing on left side


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Feb 1, 2010 - ... Apr 19, 2007 at 10:57am. 0. HP Color LaserJet 2840 ... I have the same issue as above-Not printing on the left side of pages.I went threw the ...

HP Laserjet 2840, various problems ' FixYourOwnPrinter


Dec 25, 2015 | HP LaserJet 2840 All-In-One Printer

2 Answers

Hp Laserjet 2840 was scanning, suddenly it stopped and gave the message "An error occurred communicating with the scanning device. Please ensure that the scanning device is connected properly and try...


I pulled this from the HP boards from Charlie Bravo

I tried it and it worked for me. (this is a network setup.)
MY FIX (Windows XP):
After trying numerous things, here is what I resolved:

1) Problem: when trying to scan using my 2820 Color Laserjet using "Solution Center", I got the dreaded, yet common error: "An error communicating with the scanning device. Please ensure that the scanning device is connected properly and try again"
My device: HP LJ2820 Color Laserjet

2) The printer worked fine when printing to it and also, scanned fine when using the Windows Wizard (Start/All Programs/Accessories/Scanner and Camera Wizard

3) Hewlett-Packard Support was less than worthless since they used my time and provided no useful information. Their ineptitude is legendary as we all know... To add insult to the injury, the rep wanted to charge me $25 for the "incident" which happens to be to not only identify teir bugs but also to report and fix them as an unwitting test site. Arrogant of them to say the least !

4) SOLUTION: Added an entry in the HOSTS and lmhosts file (this file is located in WINNT/SYSTEM2/DRIVERS/ETC ):
192.168.1.1 HP Color Laserjet
The 192... etc is the default gateway for my printer (look in toolbox and get the network report for yours, my printer is connected using the network, wired to a Linksys router)

Dont's bother with "reinstalling", "de-installing", etc. the problem is related to addressing and not corrupted drivers. It's simply a HP bug, nothing else.

5) Ran the "patch" col10862.exe from the hp site, listed under an unrelated problem to an unrelated printer. http://h10025.www1.hp.com/ewfrf/wc/genericSoftwareDownloadIndex?cc=us&dlc=en&lc=en&softwareitem=sj-32245-2&jumpid=reg_R1002_USEN

6) Now I can can use the the scanner I paid for...

7) Time to resolve the issue: 2 minutes. time to find the resolution to the issue: 4 hours.

May 13, 2009 | HP LaserJet 2840 Printer

2 Answers

HP PRI


completely uninstall all software realated to this printer. disconnect your pc from the web. disable your anti virus and firewall then run your fresh install. if you are getting the diver/software from the web save it to your desktop and follow the first dsirections this should solve your problem

Mar 06, 2009 | HP LaserJet 2840 Printer

3 Answers

My computer says the scanner is not hooked up to the computer


Hi mil0153, go to this web site: http://welcome.hp.com/country/us/en/welcome.html#Support
Make sure your printer is connected to the computer & the printer is turned on.
In Step 1. Click the emty circle next to, "Download drivers and software (and firmware)".
In Step 2, click "Start Detection >>" button. Allow HP to install some software. HP will scan your system & find your printer. HP will install the correct updated software & or tell you what is needed for the LaserJet 2840 to function correctly. Follow all on screen instructions.

Good luck mil0153!
Thank you for using fixya
Merry xMiss!
Mike

Dec 17, 2008 | Office Equipment & Supplies

1 Answer

HP 2840 scan to folder problem


Kiss off your money and get a commercial grade AIO
like Ricoh or Samsung. The 2840 has been a problem for us since the check cleared. 2840 Phone support is worthless. All the other HP products we have work perfectly every time.

Jun 11, 2008 | HP LaserJet 2840 All-In-One Printer

2 Answers

HP LaserJet 2840 Scanner problem


Have you looked to see if there is any paper at all in the trays. That are getting hung up.?? I can help

Feb 10, 2008 | HP LaserJet 2840 Printer

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