Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!mcdchg!chinet!chaz
From: chaz@chinet.chi.il.us (Charlie Kestner)
Newsgroups: comp.periphs.printers
Subject: Re: Re-inking HP DeskJet ? (possible ?)
Message-ID: <1990Jun5.055353.8957@chinet.chi.il.us>
Date: 5 Jun 90 05:53:53 GMT
References: <90.151.10:36:36@ira.uka.de> <20105@grebyn.com>
Organization: Chinet - Chicago Public Access UNIX
Lines: 17


  One of the ways to reduce "air entrapment" (i.e. pressurising
the cartridge) is to reverse the method used when loading a syring
from a vial.
  When you load a hypodermic, the recommended procedure is to
draw in an amount of air (into the hypo) that is equal in volume
to the desired dose.  You then inject the air into the vial, and
pull the liquid out.  This prevents creating a partial-vacuum in
the vial.
  So, try drawing out a syringe-full of air from the cartridge,
(you will create a partial-vacuum inside it) and inject a syringe
full of ink.

  BTW, sale and/or possession of hypodermic syringes is not illegal
everywhere in the U.S.  In Indiana, syringes are an OTC sale item.
(Although the retail vendor may have store policies stating that)
("doctor's permission" is a prerequisite for purchase.)