Photo printer having a host computer assist function and method

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Details

346 33R, 340799, G03B 1500

Patent

active

049891634

ABSTRACT:
A photo printer system comprises a magnetic storage for storing a print data sent from a host computer, a bit map memory for storing a print dot data, and a printer engine for printing the contents of the bit map memory. The system includes a program which operates on the magnetic storage to serve as an external storage for the host computer and on the bit map memory to serve as a cache memory in response to a data read/write command issued by the host computer, and a CPU which controls the execution of the program. At least in a non-print process mode, the system forms a data path so that the host computer can access to the bit map memory and magnetic storage so as to have a bidirectional data read/write operation. In another mode, the system forms a data path so that image data picked up with an image scanner is saved directly in the bit map memory and the image data is sent to the host computer by request.

REFERENCES:
patent: 4648047 (1987-03-01), Berkland et al.
patent: 4679153 (1987-07-01), Robinson et al.
patent: 4694405 (1987-09-01), Bradbury et al.
patent: 4706099 (1987-11-01), Suzuki
Nikkei Electronics, Feb. 9, 1987, pp. 144-145, and Apr. 20,1987, pp. 160-161.

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