Hey guys, I just replaced all the colors plus the imaging drum on my HP 2840 laserjet but it still does not print properly. The very left part of the page comes out faded every time. The right side of the page prints perfectly. Any ideas?
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.
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Apr 26, 2011 - 2 posts
I have a HP Color LaserJet 2840. If I am ... My Color LaserJet 2840 will only print on the right side of the page, how can I fix this? ... If I am copying or printing from the computer, the printer will only print the right side of the page. ... something obstructing the laser scanner blocking that side of the media path.
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.. ">
Imaging drum reach 20,000 (black only) or 5,000 (color), replace the image drum.
Supplies life The life of the imaging drum depends on the number of black-only or color pages that print jobs require. Imaging-drum life is also affected each time the device calibrates because calibrating causes the imaging drum to rotate. Imaging-drum life is measured in terms of number of rotations rather than number of pages printed. The type and length of print jobs also affects drum life. A series of short print jobs uses more drum life than an equivalent number of pages printed in a single large job. To extend drum life, print multiple copies of a print job at one time rather than sending the same job to the device multiple times. The life of a print cartridge depends on the amount of toner that print jobs require. When printing text at 5% coverage, black print cartridges last an average of 5,000 pages and cyan, magenta, and yellow print cartridges last an average of 2,000 pages. High-capacity cyan, magenta, and yellow print cartridges last an average of 4,000 pages. (A typical business letter has 5% coverage.)
Check online for refill instructions and where to buy the chip to replace on the drum, most of the drums today have little chips to replace that tell the printer when they are used up, even when there's still life in them.
In this case, actually it is not the Black toner that got depleted.
Here the message being displayed indicate that one of the color Toner supply
need to be replaced as it got depleted and currently the printer is printing in
Black and white using the Black toner cartridge.
in this case, to troubleshoot these issues please try
performing the following and check for the results.
* 1. Check for the level of the toner cartridges:
a) Check from the HP Toolbox application. Here are the steps
to be performed from your PC:
* Access the Toolbox software.
* Select the Status tab.
* Select the Device status option.
Here you can check for the supplies status in terms of the %
remaining for each toner cartridges.
b) By checking the supplies status from the printer control
On the printer display when printer is in Ready mode the
supplies status can be checked from the supplies level indicator. Each toner
cartridge and the Imaging drum level will be indicated by a bar which varies
according to the level of the supplies present.
c) Print the supplies status page from the printer.
* On the printer control panel menu, press Menu .
* Use the (Right Arrow) button
to select Reports, and then press Enter .
* Use the (Right Arrow) button
to select Supplies Status, and then press Enter .
If any of the color toner cartridges and the Imaging drum
have a low supply level replace them with genuine HP print cartridges.
The part numbers of the consumables are as follows: