Printing apparatus for printing errors in color

Typewriting machines – Including selection of type-face by... – Including error detection

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40012002, 347 43, B41J 346

Patent

active

058000739

ABSTRACT:
A printing apparatus which enables the operator to immediately discriminate a position of a check objective paper from results of printing has a printing mechanism for printing in at least one color on predetermined papers, a control unit for controlling a printing operation of the printing mechanism, and a detecting unit for detecting an opportunity of printing and outputting the check objective paper during the printing operation of the printing mechanism. When the detecting unit detects said opportunity, the control unit controls the printing mechanism to implement a color printing on the check objective paper in order to discriminate the check objective paper from another printed output papers. The printing apparatus is applicable to a printer which is connected to an upper apparatus such as a host computer to print data fed from the upper apparatus.

REFERENCES:
patent: 4908712 (1990-03-01), Uchiyama
patent: 5252992 (1993-10-01), Fukushima
patent: 5297877 (1994-03-01), Nishikawa
patent: 5413419 (1995-05-01), Oami et al.
patent: 5508826 (1996-04-01), Lloyd
patent: 5539434 (1996-07-01), Fuse
patent: 5550956 (1996-08-01), Tadokoro
patent: 5610639 (1997-03-01), Takada
patent: 5620264 (1997-04-01), Kagita
patent: 5704021 (1997-12-01), Smith

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