Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1994-09-01
1996-07-16
Wong, Peter S.
Facsimile and static presentation processing
Facsimile
Recording apparatus
358300, 358472, 347134, 347256, 347260, H04N 1024, H04N 129, G01D 1514, G01D 942
Patent
active
055372147
ABSTRACT:
A laser beam printer includes a movable mirror which is rotated by a scan mirror motor. Laser light is alternately deflected toward an information reading station and an information writing station by applying the laser light to the movable mirror from a semiconductor laser. The laser light is switched between writing-use light and reading-use light at the time the movable mirror is rotated through a predetermined angle. In the laser beam printer having the semiconductor laser which is used for both writing and reading information, information is written and read out during one rotation of the movable mirror. It is therefore possible to perform a reading operation and a writing operation simultaneously by simply switching the laser light at the predetermined time depending on the rotation angle of the movable mirror.
REFERENCES:
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patent: 4386374 (1983-05-01), Toshiba
patent: 4488042 (1984-12-01), Clay et al.
patent: 4573084 (1986-02-01), Toshiba
patent: 5327263 (1994-07-01), Katagiri et al.
Patent Abstracts of Japan, vol. 4, No. 115 (P-023), 24 May 1980, abstracting Hayakawa/Ricoh JP 55-069 168-A.
Patent Abstracts of Japan, vol. 12, No. 114 (P-688), 23 Oct. 1987, abstracting Komata/Photo Composing Mach. Mfg. Co. Ltd. JP 62-242 910-A.
Aiba Masahiko
Urakawa Toshio
Conlin David G.
Frahn Eric
Oliver Milton
Sharp Kabushiki Kaisha
Wong Peter S.
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