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HP LaserJet 2840 Printer - Page 3 Questions & Answers
Non-HP supply in use error
if you update drivers or used windows 8, HP make drivers check if cartridges are original, you have limit used of the printer, if you install original cartridges resolve you problem.
When printing from tray #2, the paper always jams
Hi
This is a paper miss-pick error. It may feed the paper just a little onto the roller on the cassette. This usually means the rollers are worn out. This is caused by worn pickup rollers and separation pad. If you pull out the paper tray and set the printer on its side and look under the bottom you will see a rubber coated roller on a white axle, this is the pickup roller. The roller should have a rough surface, when they wear down the surface becomes smooth and it will not grip the paper it pick it up. Two of them to change, one on the cassette and one inside.
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Isn't printing yellow.
first check the toner ink level... if its empty replace the toner... if you have already done that remove the toner and then shake it little bit then put it back...>> you can also unplug the power chord without turning off the printer and then wait for 30 sec and plug in the power chord.. hope this works..
How to reset printer setting
Turn off the HP LaserJet 2840.Press and hold down the "Enter" and "*" keys on the printer's control panel, and turn the printer back on.Hold the "Enter" and "*" keys until you see the "Permanent Storage Init" message on the device control panel. Release the two keys to perform the NVRAM initialization. The NVRAM initialization takes just a few seconds, and the "Permanent Storage Init" message remains on the printer's display until the initialization is complete.Ensure that the "Ready" message on the printer's control panel is visible. You can now connect the printer to your computer and print your documents. If the "Ready" message is not displayed and your printer is still stuck in a loop, turn off the printer and contact HP customer support (see Resources).
- To reset an HP 2840 from your computer, open the HP Toolbox program, click "Device Settings," click "Service," click "Restore" in the Resets section and then click "OK" to confirm the action and restore the printer to its factory defaults.
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