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I am installing a new black cartridge for my HP LaserJet 2840. Is the case suppose to fit in to the "C" ? I cannot get it to fit into the notched edge.

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FIXED!

Posted on Jan 29, 2009

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Black stripe when printing from hp laserjet 2840


Cartridge faulty...
Two ways you can find out the faulty cartridge.
1. Remove each cartridge, just flip the drum shutter & chk for any toner bands appears on drum surface.. if found replace that cartridge..
2. Go to the paint. create four colored page as shown, print & verify which colored print mixed with bads.. replace that cartrdige.. ">

Mar 01, 2014 | HP LaserJet 2840 All-In-One 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

1 Answer

We have an HP Color Laserjet 2840 printer in our office. We were low on our black ink drum, bought a new drum and installed it. Copies are coming out perfectly but the "replace black...


The 2840 is a slightly different sort of machine when it comes to supplies. There is a main imaging drum unit which works for all four colors, and then there of course are the 4 colors. If the unit was asking for a drum unit then you should have instaled a Q3964A. It is entirely possible that your drum unit and black cartridge both expired at the same time, in which case, you need a black toner cartridge now.

Jul 28, 2011 | HP LaserJet 2840 All-In-One Printer

1 Answer

I have HP laserjet all in one 2840. got massage replace supplies. replace black ink. massage still there. printer does not work. please help tell me what to do thanks, Troy


Did you purchase a new cartridge or refill? These supplies have a non-resetable chip on them that must be replaced when a cartridge is refilled. If it is an new HP original cartridge, contact HP and have them replace it. If it is a refill, contact whoever you bought it from and get them to replace it.

Apr 14, 2011 | HP LaserJet 2840 All-In-One Printer

1 Answer

HP Laserjet 2840 when operating is making a really bad squeaking noise, what do i need to do, is it just a case of removing all the colour laserjet cartridges and cleaning the printer and lubricating, when...


If you hear the noise when you power up when just the transport is running, you may need a new fuser. If the noise only comes during printing after the transport starts it could be a bad laser unit. The levels should not be changed by removing the cartridges.

Jan 05, 2010 | HP LaserJet 2840 Printer

1 Answer

HP 2840 *(Error Message) = replace supply using black only Will only print in black All color and black toner are 75% or more full The drum was low so I replaced it just in case but error message remains.


By repalce supplies, it means that you have to replace the other toner cartridges and that it is only going to print black only

Al
Eliteprintersolutions@gmail.com

Apr 14, 2009 | HP LaserJet 2840 Printer

2 Answers

HP 2840 Prints Blank Pages


Black is used on all prints. Did you pull the tape on the new cartridge?

Jan 13, 2009 | HP LaserJet 2840 All-In-One Printer

1 Answer

Error show on panel replace black cartridge


The replacement cartridge is a cheap imitation, that does not have the proper equipment to keep this error from reporting.

Dec 25, 2008 | HP LaserJet 2840 All-In-One Printer

2 Answers

Re-installing yellow cartridge in HP 2840


There is a gray button right of the LCD display that has a black arrow circling clockwise and four color dots (magenta/black/cyan/yellow). Push it until you see the "Rotating to Yellow" in the LCD display, then open up the top of the printer by pushing the big gray latch next to the picture card reader at the right front of the printer. You now have access to the cartridge. pull it out and examine it. If it is a new cartridge, check to see if you pulled the plastic dam strip out (which keeps the toner in place in shipment etc).

Sep 07, 2008 | HP LaserJet 2840 Printer

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