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Ushio BF2
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Here I disassembled the broken fuser assembly from Xerox DocuPrint N17 printer and pulled halogen infrared light bulb out of it. The fuser assembly simply used the infrared light bulb to heat the fine plastic pellet toner to fuse into the paper.
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Today most of the laser printers, don't have these lamps as the heating element for their fuser, as their warming up time is very short, and with the HP Laserjets, their warming up time is totally eliminated (The current Laserjets begin to print the document as soon as they recive it, regardless if their fuser is hot or cold, as their fusers reach theirs operating temperature within 0 secs, what that called "instant on fuser". Indeed the fuser of the Laserjets even turns off 5 secs after finishing the printing [The clicking noise that heared from Laserjets few seconds after the printing was finished]).