Ribbon feed tension mechanism

Details Ribbon feed tension mechanism Ribbon feed tension mechanism

B - Operations, Transporting

41

J

101/102, 197/110

B41J 33/52 (2006.01) B41J 32/00 (2006.01)

Patent

CA 1266015

LE9-84-021 RIBBON FEED TENSION MECHANISM Abstract of the Invention Member (9) has a tension arm (13) over which ribbon (3) feeds. Biasing arm (17) presses member (9) toward brake surface (7), with slot (21) moved until it encounters stud (23). At low tension of ribbon (3), brake surfaces (11) and (7) press and hold ribbon (3). As feed tension increase, tension arm (13) forces member (9) back until stud (23) encounters the opposite end of slot (21), after which slightly higher force further opens the brake and arm (13) continues to provide feed tension. The mechanism is small, efficient, smooth functioning, and suited to incorporation as part of a ribbon cartridge.

502702

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