streak is causing because of faulty drum unit or toner cartridge or fixing unit or also if it is color printer this problem also cause because of ITB or ITB Blade & also first to check the narrow glass which can cause the problem while copying or scanning
The Cerebrum
Printer toner can be replaced at home, but you should be sure that you know how to do it before you try. Otherwise, you could break your printer or cause a huge mess.
Because when u talk while streaking some bacteria could come from your mouth and get on the plate from spit or somehow. There fore talking is not a very good aseptic technique.
A Laserjet 1100 printer can be purchased from all good electronics and printer stores, such as PC World. One could also buy this printer from webpage stores such as Amazon or Ebay.
There are jobs available in the field of printer repair. You could work for a large printer repair company, or could work for a large employer which might have a printer repair tech on site.
It could be the printer or the person that supplied the printer with the mistake.
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There are several places one can take their printer for repairs. These places include The Printer Shop, A1 Printer Repairs, and the brand store of the printer you are trying to have fixed.
the printer will damage
It depends on what you mean by normal printer? I assume an inkjet or laser printer (of which there are many makers and models) could be termed as normal!
One way would be to try the printer on another computer. You could also try removing and then reinstalling the printer. Also try updating the driver.
I guess you could get any printer stand for your printer at any local electronics store and mostly online, on electronics website. You can search for them on the manufacturer's website of your printer.