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We have an MF644CDW and for some time the printer has indicated the black cartridge is empty. Knowing that - unlike inkjets - running a laser on an empty cartridge will not hurt the printer, we decided to print whatever black pages may be left. That ...
It is hard to explain this failure mode on my new Canon ImageClass, but when I select color copy using the default settings, it is as if a white picket-fence template has been placed over the image. Selecting B&W from the same Copy menu - again all d...
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