Apparatus for forming a color image using two memories

• US 5,351,074 A
• Filed: 10/13/1992
• Issued: 09/27/1994
• Est. Priority Date: 01/19/1988
• Status: Expired due to Term

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Kadowaki, Toshihiro, Sakai, Masanori
• Primary Examiner(s): MILLER JR, GEORGE
• Application Number:
  US07/959,555
• Time in Patent Office: 714 Days
• Field of Search: 346/157, 395/115, 340/703, 358/300
• US Class Current: 347/115
• CPC Class Codes: H04N 1/387 Composing, repositioning or otherwise geometrically modifying originals
• CPC Class Codes: H04N 1/46 Colour picture communication systems
• CPC Class Codes: H04N 1/508 using the same reproducing head for two or more colour components
• CPC Class Codes: Y10S 347/90 Data processing for electrostatic recording

Abstract

There is disclosed an apparatus comprising: an input circuit for inputting at least one of the coded character information, coded figure information, and bit image information; a memory to store an image; an image developing circuit for developing the information input by the input circuit into the image memory with respect to one output color component; and an image forming circuit to form one output color component image in accordance with the value of the image data in the memory, wherein a color image can be formed by repeating the image development and the image formation with respect to a plurality of output color components.

Claims

1. An interface for inputting color image information into a color printer, comprising:

a first memory for storing the color image information;

a second memory provided separately from said first memory, for storing the color image information; and

control means for storing the image information in sequence into said first and second memories,

wherein said first and second memories store the same kind of color information, and said control means stores the image information alternatively into said first and said second memories synchronously with printing operation of the color printer.

2. An interface according to claim 1, further comprising:

an input section for inputting of the color information into said interface responsive to a command.

3. An interface according to claim 2, wherein said input section is also structured and arranged for inputting of the command, converted into image information.

4. An interface according to claim 1, further comprising:

selecting means for selecting between outputs from said first and said second memories.

5. An interface according to claim 1, wherein the color printer is an electronic photographic printer.

6. An interface according to claim 1, wherein said first and second memories have, respectively, memory capacities of a page.

7. An interface according to claim 1, wherein the color image information includes a primary-color component.

8. An interface according to claim 1, wherein said control means stores the image information alternatively into said first and second memories synchronously with operation of the color printer.