Question about Brother MFC-5840CN All-In-One InkJet Printer
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?
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!
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
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Posted on Jan 02, 2017
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Sep 16, 2012 | Brother MFC-5840CN All-In-One InkJet...
Jun 14, 2011 | Brother MFC-845CW InkJet Printer
Do the following to
clean the print head:
INK key on the control panel.
the DOWN arrow key until CLEANING appears on the LCD.
the DOWN arrow key to select BLACK, COLOR or ALL depending on what you
want to clean.
The machine will
clean the print head. When cleaning is finished, the machine will go back
to Ready automatically. If you are experiencing a print quality issue, we
recommend you repeat the print head cleaning for each color showing an issue
at least five (4) times.
If you are
experiencing a print quality issue and want to see if the cleanings are
improving the print quality, print a Print Quality Check Sheet (PQCS) after the
first cleaning and then print another PQCS after repeating the print head
cleaning steps at least three (3) more times (4 total cleanings).
You can then compare the two Print Quality Check Sheets.
Do the following to
print a Print Quality Check Sheet:
Press INK key on the control panel.
TEST PRINT will appear on the LCD.
Press OK. PRINT QUALITY will appear on
Press COLOR START.
machine will generate the Print Quality Check Sheet (PQCS). On the PQCS each of
the four colors is represented by a slanted square pattern made up of 96
individual blocks. The colors should appear (from left to right): Black -
Yellow - Cyan - Magenta. Cyan is the light blue color and
Magenta is the pinkish color.
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