DesignJet 1050Cs are part of Hewlett Packard’s lineup of wide format printers. The DesignJet 1050C is no longer sold my Hewlett Packard, the printer having been replaced by newer models of DesignJets. If your DesignJet 1050C is having problems with the printhead and you are looking to keep the printer, you do not necessarily have to call a repair shop. You can troubleshoot the printhead yourself and possibly save some money.