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A Scientific Approach to Remanufacturing Ink Jet Cartridges: The HP 629A
by Wolfgang Reick · TB Acessorios do Brasil · October 1, 2001 - page(s): 83,84,86,88,92,94,96,98
During the 1990s, ink jet printers seized a significant share of the printer market. As this new technology spread, the recycling industry also evolved quite dramatically. Today thousands of companies worldwide thrive with ink jet recycling as their main business.
Ink jet print heads are, in fact, high-tech products and still undergoing dramatic development efforts to improve materials, design and ink. Due to this, successful remanufacturing of ink jet cartridges increasingly requires meticulous care and handling of the empties. Experienced recyclers certainly will confirm that it was much easier to obtain satisfying printing results with earlier designs, such as the Hewlett-Packard 626A, than with later models (629, 614 and others) that use pigmented inks.
In recent years several technical publications have given detailed information on basic principles and design of ink jet printers, print heads and inks, and thereby have made important contributions to the understanding of the ink jet technologies employed today. The goal of this work is to expand on the current knowledge by clarifying the interrelationship between different parameters during ink jet remanufacturing and the corresponding printing results. I will use the 629A cartridge as an example.
The results discussed in this work are based on my experience recycling more than 200,000 ink jet cartridges (mostly Hewlett-Packard 629A) as well as on several years of scientific research on the defective thermal print heads of different ink jet cartridges.
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