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Resetting the HP C9351a (No21) -
C9352a (No22) - c6656a (No 56) -
C8727 (No 27) blacks - c6657a (No 57) - C8728 colour & C6658 Photo ink
FIVE METHODS TO RESET
HP INK CARTRIDGES ARE DESCRIBED BELOW
1. Refill your Hewlett Packard ink cartridge using
your Proprint supplied ink refill kit.
Now we explain how to reset the ink
level gauge after refilling your HP 56 (c6656a) black and HP 57 (c6657a)
colour inkjet cartridges! Also works on HP No 21 , 22, 27, 28 and 58.
2. To reset the HP 56 black ink
cartridge or HP 57 colour ink cartridge, first tape over the contact pointed
to by the arrow in the diagram on the left.
3. Install the ink cartridge back into
your HP printer with the first contact covered with tape. See below for
illustration of contacts. (One of the little gold-coloured squares is called
4. The printer will tell you that
there is a problem with the ink cartridge. Click "ok". The printer
will then start to print an alignment page. Let the printer
print the alignment page.
Remove the inkjet cartridge from the printer again. Leave
the first piece of tape on the contact first covered. Cover
the second contact shown in the picture on the lower left for the
black ink cartridge or the contact in the picture on the lower right
for the colour cartridge. The second contact on the HP c6656a
black cartridge to be covered is the top square on the next to last
row from the left. The second contact to cover on the HP c6657a
inkjet cartridge is the top square on the last row from the left.
6. Install the printer ink cartridge again. This time with both contacts being covered with tape.
7. The printer will go through the
same process as before, telling you there is a problem with the printer ink cartridge.
Again, click "ok". The printer will start to print an alignment sheet.
Again, let the printer finish the alignment page.
8. Remove the cartridge once more
from the printer. Remove both pieces of tape used to cover the
Make sure that there isn't any
residue left from the tape on the contacts. If you do see residue,
gently clean the contact with rubbing alcohol.
9. Install the cartridge on final
time into your HP printer. The cartridge will now be read as new and
full of ink.
Green square = first contact to
Blue square = second contact to cover
Green square = first contact to
Pink square = second contact to cover
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computer off, remove the cartridge from the printer and cover contact #1
with tape. Start up computer and printer should automatically print a
2. Take out inkjet cartridge
and cover contact #2 with tape. Reinstall ink cartridge. Printer
will make a little noise.
Take out cartridge
and cover contacts #3 & #4 with tape. Reinstall cartridge.
(Printer will make a lot of noise. If you check ink levels now with HP
inkjet utility, you will be given a notice that printer is busy printing.
Open printer lid
and wait for cartridge to return to center. Remove cartridge.
Remove tape from Contacts #1, #2, #3, and #4. Reinstall cartridge.
(If you check ink levels now, you will be given a notice that printer is busy
6. Turn printer off and then on again. Check ink levels
they should now register 100% full. Printer should be ready to use.
METHOD 3 - Three Cartridge
On some models the above procedure won't
work, and you'll have to fool the printer by keeping three cartridges on
hand (these cartridges can be old, empty cartridges). This works
because the printer only remembers the last TWO cartridges which were in it.
The procedure is as follows:
Cart #1 (empty) is removed for
Cart #2 is installed
Cart #2 is removed
Cart #3 is installed
Cart #3 is removed
Cart #1 (refilled) is installed.
The printer now thinks that the filled cart is new.
ANOTHER METHOD? - METHOD 4 - One of our
customers used the procedure listed above to reset the ink levels on the
cartridges HP 56 & 57 in an HP Photosmart 7260. this worked fine for the
color #57 but he could not get the Blk #56 to reset using the procedures
listed above, however he got it to reset by applying tape per step 1,
reinstall, power down printer, power up printer.
Add tape per step 2, power down printer, power up printer.
Remove tape applied in step 1, reinstall, power down printer, power up
Remove tape applied in step 2, power down printer, power up printer.
At this point going to Start, Settings, Printers, HP 7260, Properties,
services, service this device, select the "Estimated ink level" which showed
a full ink level.
At no time in the process for either cartridge did the printer / software
indicate that there was a problem with the cartridge and want to run an
alignment, which is why he substituted a power down. www.niftypersonalloans.com.au/money-lenders/
Another possible method
I heard of which might work on HP Lexmark and Dell is to remove both
cartridges from the printer, Power the printer on / off at wall supply about
6 times - leave 30 seconds or so between each power on / off to the printer.
The idea here is that the printer without ink cartridges in has no cartridge "To
memorize" and that at the end of the procedure any inkjet cartridge introduced is
treated as a "New ink cartridge" - No confirmation yet that this method is
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