Question about Toshiba E-STUDIO 650 Copier

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Cleaning corona wire on Toshiba e-studio 810

How can I clean my corona wires on e-studio 810? I'm getting black spots in the background, after about 50 copies.

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Clean with an eraser by rubbing back and forth ( careful it can snap)
use a tissue w/ water

Posted on Jul 16, 2008

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What might cause my Brother HL-2040 to leave black blotches and an overall gray appearance on print outs?


if your drum is new and still you are getting a problem of dark background then you have to replace the toner cartridge.

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Thick black vertical line all the way down on left had side of page when printing


You may have figured this out, but I had the same thing happen on one of our Brother 2820 Intellifaxes. Turns out that if you don't return the corona wire cleaning tab (blue tab on the drum assembly) back to "home" position, it will block that portion of the corona wire and result in a black strip on any output where the cleaning tab is blocking the corona wire. Hopefully, this will help someone Googling for
the same issue.

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MACHINE SAYONG WITH CALL OUT SERVICE CODE C970 HAVE CLEANED FEED ROLLER, CLEANED DRUM AND BLADE, CLEANED TRANSFER AND CORANA WIRES


usually one of the corona wires is broken. double check the transfer and separation wires, or it could be the primary charging wire that is in the drum unit itself.

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Canon ir5000 copies have horizonal bands of light copy quality. How do I get even, good quality down the entire page?


The machine probably needs a service paying attention to the development and the cleaning areas. Also, clean or replace the corona wires and check that there is no flat spots on the fuser roller.

Jun 18, 2010 | Canon Office Equipment & Supplies

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Our printed pages are coming out with the spots mentioned by another person but we are also having pages with b&W pictures that are irregularly shaded (like a piece of lace) where they should be a...


I would try cleaning the corona wire for the black (K). It is the closest to you (closest to the handle) in the drum unit.

Follow the procedure in your manual for cleaning the corona wire by sliding the green tab back and forth a few times. Be sure to return the green tab to its home position.

You can clean the corona wires for all of the colors in a similar fashion, if you deem necessary.

I hope this helps!

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Toshiba e-studio 232 code C970


1. Check and clean the main charger, replace if required.

2. Check and clean the transfer/sep. unit, replace if required.

3. Before you replace the HVT board, check the black color plastic piece mounted on the machine frame where the main charger connects. If this part is damaged, the high voltage will arc through which can cause C970. (found in several machines).

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E-studio 810 problem


There are a couple of different switches that could be out of alignment, or not "making" when you reconnect the finisher. If you will look on the copier, at the latch that connects the finisher to the machine, you will see a pointy shaft about 2 inches long. This rod comes in contact with a switch inside the finisher. There is a metal actuator on this switch that could need adjusting. Not a difficult job, but it will require you to take a few covers off. Also, there is a black push button on the finisher that is actuated when you push the finisher to the machine. If you are looking at the back of the finisher (the side that connects to the machine) it will be on the lower right hand side. It it operated by a connecting rod inside the finisher. This rod could have come loose. Again, not hard, but requires cover removal. Also, when you locate this particular push button, try manualy pushing the switch to see if this makes you message go away.

As for the black spots, this could be any number of things, but I suspect that that it might need a cleaning blade and brush, and maybe just a good cleaning in and around the drum unit.

Hope this helps,
C

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Problem on Toshiba e-studio 45


That should be looked at by a technician to check the optics out

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Copy quality


Try cleaning the laser.

Jul 02, 2008 | Toshiba e-Studio 161 Copier Copier

1 Answer

Black Spots all over my copies


There are lots of things that can cause this. Inspect the fuser assembly & verify that there isn't any teflon missing from the upper roller & that the lower roller is clean. The spots can also be caused by a build up of waste toner in the cleaning assembly, causing excess toner to be dropped on the copies as they pass under it. The cleaning assembly would need to be removed & cleaned to correct this. The spots are not always in the same place - but are they the same pattern? A worn drum assembly can cause spots that are usually a repeating pattern but located in different parts of multiple copies. Dirty corona wires can also cause random spots & rewiring the coronas would solve that.

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