Typewriting machines – Typing by other than type-face or type-die – Thermal
Patent
1989-07-12
1991-10-01
Wiecking, David A.
Typewriting machines
Typing by other than type-face or type-die
Thermal
400 88, 400193, B41J 2325
Patent
active
050528327
ABSTRACT:
A hand held printer for printing on a print paper when the printer is manually moved over the surface of the paper is provided, including a print mechanism supported within the housing to print inputted characters and drawings on the print paper upon manual manipulation of the housing. A thermal head is movably supported within the housing. A movement measurement unit indicates movement of the printer. A drive roller drives a ribbon take up roller and movement measurement unit. A clutch allows the drive roller to function only in a printing direction. A spring biases the drive roller towards an operating position, the drive roller moving to the print surface independently of the thermal head when the drive roller is biased by the spring.
REFERENCES:
patent: 3767020 (1973-10-01), Rowe
patent: 4750049 (1988-06-01), Murakami et al.
patent: 4819083 (1989-04-01), Kawai et al.
Akiyama Takaaki
Fujii Masahiro
Kamijo Masahiro
Kurose Mitsukazu
Matsuo Shuji
Kaplan Blum
Seiko Epson Corporation
Wiecking David A.
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