Accessory control device and information processing method

Details Accessory control device and information processing method Accessory control device and information processing method

1993-06-18

1996-01-02

Evans, Arthur G.

395112, G06K 1500

Patent

active

054816564

ABSTRACT:
An accessory control device for installation in an electronic device, such as a printer, that normally receives data though its own input port, for performing information processing. Rather than the electronic device receiving data from outside and processing it, the accessory control device is provided with a communication interface capable of receiving data directly from external sources and processing it using a processor within the accessory control device. The processed data is then transferred to the electronic device. The accessory control device is typically constructed using a cartridge type housing and has a communication control section that receives the data and transfers it to the microprocessor for processing in a desired manner. Memory internal to the cartridge is used to store data and programs used by the microprocessor. In a typical application the programs provide a page description language interpreter which is used by the microprocessor to develop print data received from an outside source into image data. Following this, the microprocessor outputs the image data using a double-bank control circuit to the electronic control device, which is typically a the laser printer, and it is printed.

REFERENCES:
patent: 4441164 (1984-04-01), Pavan
patent: 4730947 (1988-03-01), Ikeda et al.
patent: 5137379 (1992-08-01), Ukai et al.

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