Question about Brother MFC 420CN All-In-One InkJet Printer
Hi, I did hit menu, black start (mono) & then up arrow 4x. I get this message - Machine Error 4F.
Any ideas much appreciated!
What is PH?
Posted on Dec 13, 2008
Yes. Very sorry: ph is defective and needs replacing.
Posted on Apr 07, 2008
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Posted on Jan 02, 2017
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