1992-04-29
1992-11-10
Evans, Arthur G.
395106, G06K 1500
Patent
active
051631253
ABSTRACT:
A data processing apparatus includes a first image signal generating source for sending a first image signal to a printer unit for printing the first image signal; a second image signal generating source for generating a second image signal different from the first image signal, the first image signal generating source being connectable to the second image signal generating source and having a combined image signal output mode for outputting a combined signal of the first and second image signals to the printer unit; and an inhibition unit for inhibiting a change from the combined image signal output mode to another image signal output mode while the printer unit is operating.
REFERENCES:
patent: 4081604 (1978-03-01), Kanaiwa
patent: 4251837 (1981-02-01), Janeway, III
patent: 4682190 (1987-07-01), Ikeda
patent: 4786923 (1988-11-01), Shimizu
Canon Kabushiki Kaisha
Evans Arthur G.
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