Historical clue formulations

• Big name in photocopiers, once — 2017-11-13
• Classic name in photocopiers — 2015-05-26
• Former Xerox competitor — 2015-04-24
• Copier giant absorbed by the Kyocera Corporation — 2013-08-03
• Classic name in copiers — 2008-12-20
• Certain copier — 2007-11-17
• Canon alternative — 2007-09-02
• Canon competitor — 1997-03-30