Question about HP LaserJet 2840 Printer

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Replacing toner in laserjet 2840 - HP LaserJet 2840 Printer

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Just follow this link and get the procedure

http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&objectID=bpl06345&prodTypeId=18972&prodSeriesId=445194
and if u required our technician support contact us at http://tinyurl.com/mtgjzz

Posted on Jun 22, 2009

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I installed an original Q3971A toner into the HP 2840 laser printer, However there is still a notice to install cyan catridge. Can you help please


PDF]HP Color LaserJet 2840 and 2820 All-in-One for small and ...

h10010.www1.hp.com/wwpc/.../clj2820_clj2840_bro.p...

Hewlett?PackardColour laser printing. HP Color LaserJet ... •Convert hardcopy documents into digital format for easy ... Color LaserJet 2820 All-in-One gives you high quality, ... Oth ring. Why HP. Save time. Printing a file. Printing a paper fax. Receiving a .... Install, configure and manage multiple networked ... Replace toner cartridges easily.

HP Environment: Product Safety Information - LaserJet ...


Dec 18, 2015 | HP LaserJet 2840 All-In-One Printer

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Can u help me my 2840 laserjet paint error 54.2 ..rotating to mageta ?


if its error comes on only margenta toner, so it is posible that the toner powder senser sence no ink, but counter says there is remain some,
1 trick replace the toner
2 trick go to printer menu -> servises -> restore factory

Apr 03, 2015 | HP LaserJet 2840 Printer

1 Answer

How to reset supplies on HP 2840 laserjet?


"Would like report of supplies from 2840 laserjet. How to get it to show report"

Select 'Menu" button, then select "Reports", then select "Supplies Report".

This will print the status of the four toner cartridges and the drum.

It doesn't make sense to reset toner cartridges UNLESS you refill them
first. On the HP 2840 each cartridge/drum contains a chip that measures
the life of the unit.

You can purchase toner/chip combinations online cheaper than new
cartridges. I also purchase drum chips to extend the use of my drum
until print quality actually starts to deteriorate.

I use both of these methods to save money on supplies - buy toner and
toner chips, buy drum chip to get full use of drum unit.

Hope this helps.

Mar 19, 2012 | HP LaserJet 2840 Printer

2 Answers

I have an HP color laserjet 2840 and just replace the drum not long ago, maybe back in the spring, and changed all the colour cartridges in the summer, now it's saying to replace the drum again, the...


The HP Color Laserjet 2840 Is a Very Good Reliable Printer. I'm curious if you are buying American made components or cheap components from some thrid world country sold at ahuge retailer. They really should stand behind their laser drums, but if they don't then shop over at www.officeinks.com or www.wowsuperdeal.com and Purchase American Made Toner Cartridges and Laser Drums. Office Inks has a 1 year satisfaction and quality guarantee and free return shipping if their ink, toner, drums, ribbons etc, don't make you happy. Only Ships USA Though.

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

1 Answer

Incorrect yellow of HP laserjet 2840


Turn off the printer and open the cover and manually rotate the assembly for the toner.

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

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JUST CHANGED TONER...GET RESPONSE TO REPLACE SUPPLYS


While holding down the Check-Mark key turn the printer off then back on.

Jan 22, 2009 | HP LaserJet 2840 Printer

1 Answer

Replace Cathridge


The front panel tells you witch toner cartridge should you replace. If a supply memory error ocures then the cartridge should be replaced or exchanged with a new one. The imaging drum unit is also consumable. for "Joe 50" - there are 4 toner cartridges in the printer.

Dec 28, 2007 | HP LaserJet 2840 Printer

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