Question about Brother MFC 420CN All-In-One InkJet Printer
My printer stopped printing mag & yel. The blu & blk work fine. I tried replacing the cartridge & have cleaned MANY times, but stil no mag or yel comes through.
Replace ALL carts with new ones.
press menu then start bk-copy then fourtimes arrow up quickly one after another. machine turns to maintenance mode.
press 7 then 6 then 4 then start bk-copy.
machine will initiate the carts and refresh ink in tubes and ph and do some special power cleaning.
when finished press 7 then 6 then 3 then start bk copy.
machine will do a power cleaning.
when finished press 9 then 9 to leave maintenance mode.
run a test print.
If you cant see any yellow and/or magenta the ph is defective and needs replacing (this happens mostly because of generic ink which contains the wrong chemical mixture to keep the ph alive).
Posted on Mar 24, 2008
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Posted on Jan 02, 2017
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