Question about HP Office Equipment & Supplies
The Hewlett-Packard Color Laserjet 2840 is a high-end laser printer. It is part of HP's "all-in-one" series. This means that the HP 2840 can perform multiple functions including printing, scanning, copying and faxing. With all of these different features, you may be experiencing technical problems in any one of those areas. You can, however, troubleshoot some basic problems before having your printer repaired.
The HP 2840 is an all-in-one printer.
Posted on Jul 29, 2010
All you need to do is the check whether anything stuck or not on the tray, such issues are always resolved by small things you might need to check the paper tray and roller, there might be a very small thing (may be smaller then a needle or a bee).
Check those things out, thought i am not much technical help here as you have already gone through many steps here.
Posted on Jul 28, 2010
Past a point it is cheaper to replace. However sometimes the problems are simple.
First is look at the paper. Does it look like it caught on something on an edge ? Or does it look like it was pressed into it? Also is this on every page regardless or just the odd page or just the top and bottom pages IE full or near empty paper tray? that will give a clue as to what we are looking for.
If it is consistent then you probably have either something stuck inside the paper path or something damaged in the paper path. It could also be the tray or part of the surround where the paper comes out of the tray.
If the paper damage is consistent then you know where to look. You just need to follow the paper through the printer and see what lines up with the marks on the paper. As a guess I would look at the set of rollers that look like a set of spaced wheels. These will be just before or just after the paper goes over the drum. (I'd have to dig out my manuals to give the proper name, can't think of it). I've had paper damage close to what you describe caused by those. Usually the paper tension is off for some reason and instead of riding over the rollers it gets pulled in and gets cut or ripped.
Posted on Jul 28, 2010
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Posted on Jan 02, 2017
Tips for a great answer:
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Jams in tray 2
Table 7-10 Causes of tray 2 jams
The feed or separation rollers are dirty, worn, or damaged. Clean the rollers. If they are dirty after cleaning, or if they are
worn or damaged, replace the rollers.
The pickup roller is worn or damaged. Replace the pickup roller.
The tray 2 paper pickup assembly drive gears are damaged
or the assembly is defective.
Check the drive gears in the paper pickup drive assembly.
Replace the pickup drive assembly if the gears are
damaged. See Paper-pickup drive assembly.
The tray 2 pickup solenoid (SL101) is damaged. 1 Disconnect the connector for the tray pickup solenoid
from the dc controller PCA (location J92).
2 Measure the resistance between the cable connectors.
3 If the measured resistance is not approximately
160 ohms for the HP LaserJet 4200/4300, or 110 ohms
for the HP LaserJet 4250/4350, replace the tray 2
The tray 2 lifter-drive assembly or the stack position
sensor (PS107) is defective.
Replace the lifter-drive assembly. See Tray 2 lifter-drive
assembly and/or Printer switches and sensors.
The dc controller PCA is defective. Replace the dc controller PCA. See Dc controller PCA.
Dirty, worn, or deformed pick-up roller, cassette separation
roller, and cassette feed roller.
Clean the rollers if they are dirty. Replace any worn or
deformed rollers. The cassette separation roller and the
cassette feed rollare are to be replaced together.
Damaged gears in the cassette pick-up drive unit. Move the gears in the cassette pick up drive unit. If the
gears are not rotating correctly, or are damaged or worn,
replace the cassette pick-up drive unit.
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