Copying apparatus in a facsimile machine
AssigneeBrother Kogyo Kabushiki Kaisha
InventorFumihiro Minamizawa
Life of this patent
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Abstract
This invention permits copying of multiple documents when only a small amount of memory is available. When a single copy mode is selected from an operator panel, a document's color image is read by the scanner section, stored line-by-line in a buffer, color corrected, converted to binary print-use data using the error diffusion method, and printed on a line-by-line basis by a recording section. When a multiple copy mode is selected, one line of a read color image is subjected to color correction and data-compressed using a simple binary conversion into print-use data, so that one line of obtained image data is compressed before being stored in the copy-use storage area. When the image data on one sheet has been processed and stored, printing is performed by a recording section.
Claims12
A copying apparatus comprising:
- an image data converter that reads image data from a document and converts the image data into print-use data;
- a command input device that enters commands for selecting a copy mode from a plurality of copy modes;
- an image copier that forms an image on a recording medium by using the print-use data;
- and
- a conversion-type selector that classifies the plurality of copy modes into a plurality of groups according to memory required for data storage by each copy mode, and selects a type of conversion to be used by the image data converter to convert image data into print-use data based on the group in which the copy mode entered by the command input device is found, wherein the conversion type is selected based on making the amount of the print-use data smaller for the copy mode groups requiring a large amount of memory.
Dependencies are inferred from the claim text.