In 2005 Chamales' company Rhinotek was sued by HP over the packaging Rhinotek was using at the time. Though HP and Rhinotek ink is different, Rhinotek products are compatible with HP printers. HP's complaint stated that it believed that Rhinotek should make it more explicit on its packaging that Rhinotek uses parts recycled from used cartridges to produce its products. The lawsuits occurred at approximately the same time as state legislation in the US, including in North Carolina, Wisconsin, and New Hampshire, for government agencies to purchase remanufactured printer cartridges rather than new cartridges for reasons of cost and environmental concerns. In 2002 Chamales responded to such moves by printer manufacturers as trying "to prevent erosion of their marketshare".