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PITNEY BOWES 793-5, 797-0, 765-0
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1) 793-5
1) Peel off the sticker on the top front of the cartridge (original Pit-
ney Bowes cartridges have a sticker that covers the entire top side of
the cartridge, whereas NuPost Compatible cartridges have a smaller
sticker)
2) Underneath the sticker, you will notice at least hole. Locate the
hole that is covered by a silver foil seal tab, this silver seal covers the
filling hole.
3) Attach the needle to the syringe and draw up 8ml of compatible
ink.
4) Either insert the needle through the silver seal, or remove the seal
first using a small knife or blade and then insert the needle through
the filling hole. (do NOT insert the needle through any hole that has a
rubber protrusion, as indicated by the lower hole in this Nupost com-
patible cartridge). The filling hole
should provide no initial resistance to your needle other than the seal
that lies above it. Once you insert the needle into the cartridge, you will
begin to feel some resistance due to the sponge inside the cartridge, it
is OK to penetrate this sponge. Push the needle gently through to the
bottom of the sponge, and inject about 8cc (8ml) of ink or until the
cartridge is full. You will know the cartridge is full because the sponge
will no longer be able to hold any more ink.
5) Seal the filling hole with electrical tape, and allow the cartridge to
sit for a few minutes over some paper towels in order to allow the ink
to settle to the bottom of the cartridge, and for any overflow to drip
and settle its way out through the bottom. Once the cartridge is no
longer dripping, you can place it back in the printer.
Image (make lineart of below image, and show arrow
to hole UNDERNEATH the label in the middle)
2) 797-0
1) Lay out some paper towels on a workbench or anywhere you can tolerate a possible spill. For Pitney
Bowes original cartridges, you need to follow step 2, for Nupost compatible cartridges you can skip
over this step and go directly to step 3.
2) SKIP THIS STEP if your cartridge is not a Pitney Bowes original cartridge. The original PB cartridges
have a cap which needs to be removed. Using a medium sized flat scredriver, lift the tab as shown in the
picture. Once the tab has cleared the top of the cartridge, slide the cap away from you until it is completely
removed from the cartridge.
3) Remove the circular silver seal tabs (not necessary for Nupost compatible cartridges). Pay careful atten-
tion to both areas exposed by removing the silver seals, you will notice that 1 are actually has 2 holes right
next to each other, whereas the other area only has 1 hole. In the area that has 2 holes next to each other,
make sure NOT to put ink into the outer hole, as that is a vent hole and any ink poured in there will leak
out the bottom of the cartridge.
4) FOR PITNEY BOWES ORIGINAL CARTRIDGES: Enlarge the 2 filling holes (the one on the right of
the picture shown, and the INNER of the 2 holes on the left of the cartridge as shown). You can enlarge
these holes using an eyelet screw or a small drill bit. Note that you need to fill BOTH filling holes with ink
in order for the cartridge to work.
FOR NUPOST COMPATIBLE CARTRIDGES: There are 2 filling holes, the one is a self-sealing rubber
hole in the middle of the circle on the left, and the other is to the right of the picture which needs to be en-
larged with an eyelet screw or small drill. Both these holes (the larger self sealing hole on the left, as well
as the hole you have enlarged on the right) need to be filled with ink.
5) Draw up compatible ink in the syringe, and fill both chambers as positioned in point 4 above. The larger
chamber on the left will hold more ink. Do NOT overfill the chambers, especially the right chamber. If you
have filled it to the brink, carefully remove a small amount of ink to avoid it spilling. You will know when
each chamber is full because
you will see the ink coming to the top. Stop short of the top for both chambers to avoid spillage.
6) Cover both filling holes with electrical tape, making sure to leave the middle vent hole open on the
Nupost model as shown below.
7) Replace the cap of the cartridge (not needed for Nupost model). If the cartridge is dripping ink, place
it on some paper towels until it has pressurized and stopped dripping. Now you can place it back in the
Pitney Bowes meter.
3) 765-0
1) Locate the filling hole in the center of the rubber plug as shown in the image below. For Nupost models,
this filling hole is covered by a silver seal. You can poke through the silver seal with the syringe and
needle.
2) Inject approximately 25ml into the cartridge, being careful not to overfill.
3) Place the cartridge back into the mailing machine and run a test cycle. Prompt your machine to let it
know that you have inserted a new cartridge