Question about Brother MFC 420CN All-In-One InkJet Printer
I admit it, I used cheapo refill ink! Now the black section of the print head doesn't work. I took the printer apart and flushed the black tube and return line with alcohol, then installed new BROTHER black ink cartridge, but still almost no black gets through: when I do image quality test print it manages to print 2 or 3 of the 24 or so dots that show up on the color squares. Can you tell me how to rescue this print head, or where I can buy a replacement?
Hey, that's terrific! Ah, well, thanks for your advice. I guess I'll be buying a new printer very soon. Shopping around, it looks like most brands use the same disposable printer setup. Can you suggest any inkjet MFPs that have replaceable print heads in case I make the same foolish mistake again?
Posted on Jan 26, 2008
I'm afraid there is no real sucessful way of cleaning these print heads, tiny micro filters built into the head unit will blocked. I have never unblocked one fully.
Fix is to replace head
These heads are not easy to fit, then once they are you must program in the head id and run a purge with four gen inks, this purge uses like 1/4 of each ink.
Recommennd you replace printer it is cheaper to
LINK to UNRECOMENDED removal of head
I dont have the 420 cn listed but here is link to mfc425cn head info so you can see how much they are not worth buying
below is pic of head
Posted on Jan 13, 2008
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