Patent ID: 6916132
Filing Date: 2005-07-12
Classification: B41J

Abstract:
1. A double-sided printing apparatus comprising: a first printer comprising a first transporting unit; a first recording unit disposed upstream of a guiding path, said recording medium being horizontally transported from said first transporting unit; and a first discharging unit for discharging said recording medium after printing; a second printer comprising a second transporting unit; a second recording unit disposed upstream of said guiding path, said recording medium being horizontally transported from said second transporting unit, wherein said second recording unit is disposed on the same side where said first recording unit is disposed; and a second discharging unit for discharging said recording medium; said guiding path is disposed from said first discharging unit to said second discharging unit through which said recording medium printed by said first printer is guided, wherein said guiding path comprises a U-shaped reversing path; a cutting device disposed between said first printer and said second printer, wherein said cutting device cuts a portion of said recording medium printed by said first printer before said second printer begins printing on said recording medium; and a roll paper looseness generating device for detecting looseness of said recording medium, wherein said first discharging unit and said second transporting unit are disposed on the same side of said double-sided printing apparatus.