Tip & How-To about Office Equipment & Supplies

Laser printer has dark cast to entire page, prints ok.

You notice that the copies you print have a dark shadow across the entire page but otherwise seems to print fine.

You have a problem with the toner cartridge.

Toner copier/printers print by transfering toner to a drum using electrostatic electricity and depositing it on the paper. Once on the paper it is set using a heating element or fuser.

Over time the brush which contains the toner in the cartridge and the scraper which scrapes off any excess toner, or toner which is left on the drum, wears and allows extra toner to remain on the drum, which gives the dark shading I mentioned.

To compound the problem these days the cartridges are recycled and obviously at some point the scraper will wear out and you may be the unlucky person who purchased the unit. If that is the case I suggest returning the unit to the store of purchase and exchanging it or getting your money back. Most reputable stores do not have a problem doing this.

New cartridges would run out of toner prior to this problem developing. They have been designed to last slightly longer than the amount of toner which is in them. When recycled and refilled the problems start.

Recycled and refilled cartridges are not always marked as such so there is no way to tell if yours is a recycled unit.

Another problem these days is the drums are being made out of plastic instead of metal. They wear faster and die sooner and cannot be recycled successfully as often. Once they have a scratch they will never print a nice copy again.

If yours is plastic that is probably the problem. No matter which problem you have, worn scraper or plastic worn out toner cartridge, the solution is the same.

You need to purchase and install a new toner cartridge.

Thanks for using FixYa and for the great rating.

hardrocko

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1 Answer

Copies are coming out with a dark shadow. How do I solve this problem?


There are several options as to the causes of this print defect. If the entire page background is grey or shaded, these are your most probable defects:

- Your toner cartridge is defective and spilling toner, in which cae you just swap it out.
- The high voltage power supply isn't getting the correct voltage to the rollers. (change the high voltage power suply)

If each letter seems to have a small shadow, then consider these options:

- IT could also be your toner cartridge
- The transfer roller might have trouble. Clean the Transfer Roller using a dry, lint-free cloth. DO NOT touch the Transfer Roller with your fingers. If the problem persists, replace the Transfer Roller Assembly.

Before any of this, check your settings. The print density and media type may cause errors like these if they are set improperly.

Hope this helps! Good luck!

Sep 10, 2010 | Canon NP 6035 Copier

1 Answer

HP Laserjet 5P shading edges of page


This is probably due to a defective cartridge, Charge Roller or Transfer roller.

Check the cartridge for a band of toner still on the drum.

Check the Charge roller for oil or smudges, this roller should be a lighter color and should be relatively free of toner or marks.

Same as the Transfer Roll, which will be dark, though excess toner should be evident.

A relatively smooth straight line is generally the cartridge.

A rather wavey or broken line is most likely the rollers.

You can however attempt to print a large amount of pages (25-50) in an attempt to clean the parts, however if either part is defective they will need to be replaced and no manner of printing will clean them.


Apr 14, 2009 | HP LaserJet 5p Printer

1 Answer

HP Laserjet smudges across entire page


More than likely you have a bad toner cartridge.

Inkworks
866-381-0541

Nov 03, 2008 | HP DeskJet 5650 InkJet Printer

2 Answers

Weird toner issues


Hi Kelli.i would replace the drum unitand toner!

Mar 31, 2008 | HP LaserJet 2420dn Printer

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