“Are you supposed to replace the Drum Unit Sets? If so, how often and how will i know it's gone bad?”
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Buy an extra and the machine will let you know when you need to change it. I’ve only replaced mine one time and it’s real simple,read the instructions about recycling the used one before you take he empty one out.
Sorry, there was a problem. Please try again later.There are many factors that determine the actual drum life, such as temperature, humidity, type of paper, and how much toner you use for the number of pages per print job. The estimated drum life is approximately 18,000 pages when printing on Letter or A4 size paper. The actual number of pages your drum will print may be significantly less than this estimate. Because we have no control over the many factors that determine actual drum life, we can't guarantee a minimum number of pages that will be printed by your drum unit.
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