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The reason for this failure may be a developing roller fails to suck ink (DC bias of the developer roller without), may also be a photosensitive drum ungrounded, due to the negative charge is unable to discharge, the laser beam can not play a role in the photosensitive drum, and so on paper will not be printed text. The photosensitive drum does not rotate, also won't have image generation and spread to the paper, so must determine whether the normal rotation of the photosensitive drum. Disconnect the printer power, remove the toner cartridge, open the slot box cover, inner reload machine make a mark in the non photosensitive drum after the site. Start running for a while, and then remove the check mark whether the move, you can determine whether the normal work of the photosensitive drum.MnPservice manual download site
If ink is not normal supply or laser beam is blocked, can also cause white. Therefore, should check whether the run out of toner, cartridge is loaded correctly machine, sealing adhesive tape has been removed or laser irradiation channels have shelter. Need to pay attention to is, check must be power off, because the laser beam may damage your eyes.
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