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The Business Master (4th Edition)
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1993-12-24
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The following is a list of tips/notes on re-inking
the original HP Deskjet/Deskwriter HP51608A cartridges.
1. Be careful with the ink. If the refill ink
becomes contaminated with dust or foreign particles, the
jet nozzles may plug up.
2. Never touch the bottom of the cartridge with your
fingers - the nose is quite delicate.
3. A full Deskjet/Deskwriter cartridge holds about
0.6 ounces of ink. If the cartridge is empty, inject
approximately 15 cc (0.5 oz.) of ink. This may vary
depending upon the method you choose to refill your
cartridge. If the cartridge is upright (vertical), you
will be able to inject more ink into the cartridge before
the ink begins to back out of the vent hole. If you
choose to lay the cartridge down in a horizontal position
when refilling, then less ink should be used.
4. Do not drill a hole into the top of the cartridge
- you run the risk of introducing plastic shavings into
the cartridge chamber. The original vent hole at the top
of the cartridge is more than large enough through which
to inject ink.
5. The ink that you use must have specific
characteristics: namely, it must be filtered to the point
that there are no particulates, it must contain no
contaminants, no chemicals that may react with the jet
nozzles, and it must have anti-coagulant characteristics.
A water-based ink best fits these requirements. See the
Survival Kit database for recommended inks.
6. Prime the refilled cartridge in the printer as
you would a new cartridge before using. Some people
experience an airlock in the cartridge after refilling,
which can be worked out by repeated priming.
7. If you plan not to use the refilled cartridge in
your printer for several weeks or months, the cartridge
should be protected and totally covered to reduce the ink
from drying in the nozzles and through the vent hole. Do
not use tape with adhesive, nor floppy disk write-protect
tabs to cover the jet nozzle area - for the adhesive can
clog the nozzles. Clear plastic wrap (like Saran Wrap)
can be wrapped tightly around the entire cartridge.
Using an 8"x8" sheet of plastic, place the cartridge in
the middle of it, nozzle head down, and pull the corners
of the wrap upward around the cartridge. Twist the wrap
at the top of the cartridge until all slack is removed.
Fasten with a wire tie. Another quick method to seal
both the jet nozzles and the vent hole is to wrap a small
but wide rubber band around the cartridge, covering both
the vent hole and jet nozzle area.
8. The life of the ink cartridge depends on how
cleanly the cartridge is maintained and on whether or not
you let the sponge material dry out inside the cartridge.
A completely dried out cartridge may accumulate particles
near the jet nozzles and recovery may be difficult.
9. The suggested method of refilling an empty ink
cartridge is to use a syringe with a hypodermic needle to
inject the ink directly into the foam retainer pad inside
the cartridge.
10. Use a 20 cc syringe with a 1.5"-2" long needle
(#16, 18 or 20) - the longer the better. Insert the
needle through the vent hole on top of the cartridge (the
1/16" hole in the molded arrow). SLOWLY inject the ink.
If you inject the ink too quickly, it will bubble out of
the vent hole.
11. The preferred method of refilling is to place
the cartridge at a 45° position, and insert needle and
syringe into the vent hole, and slowly depress the
syringe plunger (see graphic illustration).
12. Stop the injection process at any sign of ink
leaking from the bottom of the cartridge. If leakage
continues, place the cartridge somewhere where the excess
ink can drip out without causing too much of a mess.
Don't leave it alone too long, else the jet nozzles may
dry up with ink.
13. When refilling ink cartridges, some residual ink
may build up on the nose area around the jet apertures.
You can use rubbing alcohol to clean the area to prevent
ink streaks on the printed output. Be very careful and
gentle when cleaning this area. Pat dry with a clean and
soft tissue.
14. If a jet aperture (hole) becomes clogged, put a
drop of rubbing alcohol or denatured alcohol on the
nozzle area and let it soak for a few minutes before
wiping off. You can also place a small amount of the
alcohol in a shallow dish or cup, and place the cartridge
nozzle end down into it for a few minutes.
15. Make sure not to touch or get ink on the
electrical circuit contacts on the side of the cartridge.
Use tissue soaked with rubbing alcohol to clean the
contacts before reinstalling the cartridge into the
printer.
16. Even in states where hypodermic needles are
prescription items, most people can obtain syringes and
needles from a doctor or veterinarian. If you live in
the country, a farm and tack supply is also an excellent
and hassle-free source for syringes and needles.
17. The sharp tip of the syringe needle can be filed
down to reduce the risk of accidental injury.
18. After refilling, rinse the syringe under tap
water, and shield the needle with the cover tube that
came with it.
19. Be safe. Keep all ink, hypodermic needles and
syringes out of the reach of small children.
20. It does not hurt to wear a pair of latex gloves
during the refill process, especially if you are clumsy.
Be careful where you attempt to refill your cartridge.
You don't want ink all over your desk, computer, pants
and carpet should you knock over your bottle of refill
ink.
21. If your attempt to refill a cartridge results in
fuzzy output when printing, and priming the cartridge
does not solve the problem, try using a different brand
of paper. The type of paper you use can make a big
difference in the quality of output. See the Survival
Kit database for recommended paper brands.
22. If your refilled cartridge becomes partially or
totally clogged, try the alcohol soaking tip above.
Also, try cleaning the cartridge and cradle electrical
contacts with alcohol. If this doesn't help, try gently
blowing into the cartridge vent hole. Watch out when
blowing into a cartridge! Ink will drip out the jet
nozzles in the process, but this usually gets the ink
flowing again. If all this fails to produce acceptable
print, it may be that your cartridge should be discarded.
Cartridges do eventually wear out or become defective.