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need printer service ,some times when the laser unit dirty than u should clean all optical mirror inside laser unit. sometime comes from drum , also if the fuser unit defective, last chance change toner cartridge.
smearing can be interpreted different ways. if paper stalls, it will cause "stretched" print. if the drive system is bogged down by a binding drum unit or toner, it can cause a "squished" print. if its just a "blurry" kind of print, it may be generic toner. since i can't actually see defect, i would say since you replaced drum already, toner would be easiest thing to do first. keep in mind also, generic toners have a fairly high failure rate.
Take the toner cartridge out, give it a shake and put it back in. How many pages did you print in the last week? their "high yield" cartridge is only rated at 7000 pages so I am guessing the regular cartridge is rated around 3000 (or 6 reams) It may also be complaining that the drum needs replacing depending on how long you've owned it.
The black marks are most likely from a worn image drum. I would check the image drum (the unit that the toner fits into) for wear marks. If worn i would suggest to replace it. The Brother part is DR-250 and is available at most office supply stores.
Try this... it reads the level of the toner and can become faulty. This clears it.
1: Turn off power and remove toner/drum 2: Tape the little spring loaded lever just inside the printer on the upper left hand side in the *DOWN* position! Do not replace drum yet and... 3: Turn power on to printer and let it cycle. Status/Toner lights will come on as usual. 4: Turn off printer, remove tape from lever, replace drum and turn back on.
Pull out the toner/drum and on the backside there is a blueish/purple tab, it slides from side to side along a corona wire. Move the tab back and forth several times and then put the toner/drum back in and reprint.
Below are the instructions on how to accomplish this task.
http://welcome.solutions.brother.com/BSC/public/us/us/en/faq/faq/000000/000200/000008/faq000208_018.html?reg=us&c=us&lang=en&prod=hl4070cdw_all
Try this.... 1: Turn off power and remove toner/drum 2: Tape the little spring loaded lever just inside the printer on the upper left hand side in the *DOWN* position! Do not replace drum yet and... 3: Turn power on to printer and let it cycle. Status/Toner lights will come on as usual. 4: Turn off printer, remove tape from lever, replace drum and turn back on.
call brother and tell them that the drum is shadowing and needs to be replaced or you can look in your area for a cartridge World and pay them to remanufacture that drum and If you are going to be printing check you really need to find a printer that has micr toner it has more metal ion the toner which makes it burn hotter.The toner that you are using may possibly be able to be lifted and info on the check could be [email protected]
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