Question about Brother MFC-5840CN All-In-One InkJet Printer

1 Answer

MFC-5840CN "unable to clean" and "machine code 50"

Hi.
my MFC 5840CN stopped printing Black and Yellow even after repeated head clean operation. I was told that as i'd used self re-filled ink and not used it up in 6 months (as I print fairly infrequently), there was probably a blockage in the ink delivery system and it would be uneconomic to pay for repair, so i tried myself. There were bubbles in the tubes and ink wasn't coming out of the head, so i took printer apart, flushed through using JR Inkjet Flush fluid and reassembled. I'm now getting "unable to clean" message and when I try "menu/mono print/^^^^" I get "machine Code 50"
I've cleaned the encoder strip ribbon (but there is a slight stain on one part), as i read that this cound be cause of code 50, but still no joy. Can you help?
KMW

Posted by on

  • woodkm Apr 22, 2008

    I'm pretty sure that the strip is properly back in place. One thing, though. I removed the strip to clean it and I can't be sure that when I refitted it I put it back the same way. would it matter if I'd fitted it "upside down", or swapped from L to R...or even both of these? There are is a code printed on the strip. Can you confirm the correct placing and attitude for this. Thank you

    KMW

  • woodkm Apr 24, 2008

    Right then, encoder strip fitted correctly








    Now getting "Unable to init." and "Machine Code 50"



    any ideas?

    I've had to promise that if I can't resolve problem tomorrow I'll have to get a new printer.

    KMW

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  • 832 Answers

You have to fix the encoder strip into right position within the ph carrier! do push the head left/right to see if there are waves infront of it. if so, fix the strip into position!

BTW:

If you refill your carts use 2ml glycerol (from drugstore) with 10ml dye-ink: mix well before refilling. For bk use 1,5ml glycerol with 20ml bk dye-ink.

The glycerol prefents the ph/nozzels and tubesystem from drying up!

Posted on Apr 21, 2008

  • Mix-it-up
    Mix-it-up Apr 22, 2008

    150 /\ must be readable and on the right hand side (purge station)

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