Printing device with disposable cartridge and filling means

An apparatus for printing indicia on a substrate comprising:

• (a) a frame having rotatably mounted thereon a print roller carrying indicia to be printed, a transfer roller in rotational engagement with said print roller and a fountain roller in rotational engagement with said transfer roller;
• (b) a cartridge bracket substantially horizontally mounted on said frame assembly below said print roller comprising a vertically adjustable mounted member and a cartridge retaining member secured to said mounting member having a central aperture for releasably retaining a disposable and replaceable ink cartridge containing its own supply of ink therein, said cartridge being self-supported in said cartridge retaining member and upwardly ejectable from said retaining member, said fountain roller engaging said ink cartridge when inserted;
• and
• (c) means for introducing an additional supply of ink to said cartirdge by gravity during operation of said apparatus comprising a bag for containing said ink supply under airless conditions, conduit means communicating with said bag for conducting said ink to said cartridge and a needle having a single aperture connected with said conduit means for penetrating said ink absorbing material to introduce ink to said cartridge.