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For my hp color laserjet 2840

My hp color laserjet 2840, is showing some erro message saying the scan bulb warning up, copy pending and scan error 2 turn off and on. what is the solution?

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You have a bad scanner assembly. Very expensive to get fixed

Posted on Mar 17, 2009

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Scanner Error 5 "error message" on my all in one


I had this problem and it had to do with the scan bulb head not recognising the marker. My temporary fix until the bulb is replaced is to turn the printer off, open the top (ADF and all) with the gray button on the right so that it's slightly raised and then switch the printer on. When it comes up, just close and print/scan/copy as usual. Apparently the spring in the arm warped the interior surface where the head moves and it can't line up when it's closed. Hope this helps.

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HP Color LaserJet 2840 keeps showing 50.2 Fuser error message. Nothing helps correct problem. What to do? Have tried repeatedly turning printer off, waiting several seconds and turning on again. Each time...


The fuser is the heating unit near the paper exit, and that error means the lamp is burned out, the overtemp sensor is out, or the thermistor in the fuser is bad. About all you can do is replace the fuser. www.precisionroller.com will have a new fuser for you.

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The hp color laser jet 2840 does not print. message "50.2 fuser error" appears


HP recommended checks: 1. adequate 120 VAC power supply, 2. Remove Fuser Assembly, wait 5 minutes and then reseat. 3. Reset the printer to Factory Default settings (remember to copy down the IP address, mask and gateway numbers first).

While this may solve the problem, it is much more likely it's time to replace the fuser. Cost is approx $125 if you buy it online. Just do a Google search on HP 2840 fuser.

This link will show you where your fuser is and how to remove and replace it.
http://h20464.www2.hp.com/resultsCSR.htm?prodSeriesId=445194&MEID=631309C6-088F-43F9-931F-604BAE10EB69

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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.

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HP error message 50.X is usually a fuser error. replace fuser

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