I just recently began seeing black "blobs" on my copies, very random at first, but now they are all over the page. they are not always in the same spots, they will be anywhere from just one line down the page of spots to all over the page, to none. I can find no rhyme or reason. Any suggestions
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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Drum was improperly cleaned; residual particles remain on drum. Try to manually clean the drum and do a cleaning procedure as in your manual.Replacing the cleaning module is the last thing to do if nother else works.
Pop open the fax document feeder, and look for a glass strip about 1cm wide, that runs from left to right across the machine. You will probably see a few spots of dirt, or more commonly, a blob of white liquid paper stuck on the glass, on the side of the machine that corresponds to the black lines on your fax. Clean this glass strip gently, using a soft cloth dampened with a mild detergent. I often use diluted windex. You may need to scrape liquid paper gently with your fingernail. Close the cover.
Next, put a blank sheet into the feeder and make a copy of the blank page. If you have cleaned it properly, the copy will be blank as well. If you still have a line, align it with the feeder and use this as a guide to show you where the glass may still have some **** stuck on it.
I have the same tv and the same problem, but my yellow is a cloud around the outside of the screen. My tv was recently moved, and a repair shop told me that sometimes in a move these tvs light engine takes a shock and causes a yellow "band" on the screen. I am hearing that these light engines are not cheap either. Hope this helps you.
if you are getting copy quality issues on all aspects of the machine, IE, printing, copying, ADF, it looks like then you might need a new drum installed. please contact your local service department for service and make sure if you need supplies, to have those on hand before calling a tech to come service the machine. drums, developers, and toner are considered a supply item and are NOT carried by technicians unless otherwise stated in your local contract.