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Epson's EcoTank printers offer a refillable ink tank system, which can potentially lower the cost per page compared to traditional ink cartridges, with a higher cost-of-entry. [12] This operates similar to continuous ink system printers, including notifying the user's PC to ensure the tanks do not run dry, which can damage the print head.
Diafilm strip Dukane Record Automatic Filmstrip Projector Dukane Silent filmstrip projector Music captioned filmstrip set, titled "Composers of many lands and many times by Eye Gate House Inc 1954" The filmstrip is a form of still image instructional media , once widely used by educators in primary and secondary schools (K–12) and for ...
At its peak, around 1907–8, the Projecting Kinetoscope commanded 30 percent of US projector sales. [103] In 1912, Edison introduced the ambitious Home Projecting Kinetoscope, which employed a unique format of three parallel columns of sequential frames on one strip of film—the middle column ran through the machine in the reverse direction ...