Question about HP LaserJet 2840 All-In-One Printer

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Does somebody know an easy way to fix hp 2840 that is only printing on the right hand side?

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It is catridge problem.May be your printer catridge has been faulty.You can refix the catridge after shaking.if problem is not solve then replace the catridge.

Posted on Oct 08, 2009

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


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

2 Answers

Hp laserjet 2840 not printing


http://h30499.www3.hp.com/t5/Printers-LaserJet/HP-2840-prints-blank-pages-or-yellow-only/td-p/2326639#.Ur1kMH_lMgU

Aug 04, 2013 | HewlettPackard HP Color LaserJet 2840 All...

1 Answer

How do I know which toner cartridge needs replacing?


The printer will alert you when the cartridge is running low on the display of the unit itself and also on your computer screen in the lower right hand side corner with an error display. Each place will identify the cartridge that is running low until the level is too small to print. Then printing stops until the cartridge is changed.

Sep 28, 2010 | HP LaserJet 2840 All-In-One Printer

2 Answers

2840 only prints on right side


If you are a bit adventurous and a bit patient, you perhaps can fix this yourself, and not require any disassembling. It worked for me on a similar 'carousel' unit... hp2550L.

For extra info, check this post out. http://www . fixyourownprinter . com/forums/laser/40284 (remove spaces)

If you look closely at the spot where a toner cartridge slips into a slot of sorts, you might see left side aligned and right side just a little off of 'good alignment' for that slot. What I did is to pull on the top of the black-plastic gear. Pull it toward the center of the printer.

There is a small, white gear at the very top of the black gear (not easy to see at first). By this pulling and bending of the black-plastic gear, you can get the gear teeth free of the white gear --- for just a moment. Just enough for the gear teeth to free-up and find their proper place. It doesn't take much.

When done, take a breadth and relax. Turn power off/on, and try it out.

May 26, 2010 | HP LaserJet 2840 Printer

1 Answer

Hp 2840 prints color line on left hand side of paper


What is the color of the line?
If it's blue, replace the cyan cartridge. If it's red swap out the magenta. Do the same for the yellow and black.

Dec 15, 2009 | HP LaserJet 2840 All-In-One Printer

1 Answer

Partial printing


it may happen that toner is low or it may also happen that OPC drum is faulty.

Oct 08, 2009 | HP LaserJet 2840 All-In-One Printer

1 Answer

I have a hp 2820 and it only prints on the right hand side


If you make a copy and it only prints one side, the problem is the CIS. The CIS is the strip that lights up when the paper goes through the document feeder. If it is only lighting on on one side, this is your problem. It could also be a problem with the laser unit.
If you print an internal document, such as a report or help page and it is only printing on one side, then the problem is most likely your drum unit or toner. Good luck

Jul 24, 2009 | HP LaserJet 2840 All-In-One Printer

2 Answers

Not printing on left side of page


The problem is that the revolving drum doesn't contact the OPC drum proberly. You have to open the left side off the machine and replace the little white gear on the shaft that drive revolving drum. The gear has "jumped"one step and the revolving drum isn't parallell to the OPC drum. I fixed my 2840 last night it takes some time but now it works perfect.

Feb 25, 2009 | HP LaserJet 2840 Printer

1 Answer

Toner refill kits for hp 2840


I have the same problem. Happended under warentee and the HP techs have replaced about everything but the printer's shell. They fix one thing and break another, but refuse to replace the printer and we are going on 5-6 service calls.

It all started when I replaced the magenta toner. BTW the HP techs constantly lie about what they did and when they will be back.

Nov 26, 2007 | HP LaserJet 2840 All-In-One Printer

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