Image forming apparatus and control method for the same

• US 20050062984A1
• Filed: 11/03/2004
• Published: 03/24/2005
• Est. Priority Date: 12/27/1997
• Status: Active Grant

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Muto, Tsuyoshi, Ikegami, Hideyuki, Koh, Shokyo, Kaneko, Tokuharu
• Granted Patent: US 7,403,957 B2
• Time in Patent Office: Days
• US Class Current: 358/1.100
• CPC Class Codes: H04N 1/00 Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
• CPC Class Codes: H04N 1/0097 Storage of instructions or parameters, e.g. customised instructions or different parameters for different user IDs
• CPC Class Codes: H04N 1/00973 from a remote device, e.g. receiving via the internet instructions input to a computer terminal
• CPC Class Codes: Y10S 707/99953 Recoverability
• CPC Class Codes: Y10S 707/99954 Version management

Abstract

In an image forming apparatus for forming an image in accordance with control codes stored in a plurality of memory media, when the control codes stored in the plurality of memory media to control the image forming apparatus is rewritten, rewrite execution codes adapted to execute rewrite of the control codes are transferred to predetermined one of the plurality of memory media from an external apparatus, and rewrite of the control codes is performed in accordance with the transferred rewrite execution codes.

Claims

1-28. -28. (Cancelled).

29. An image forming apparatus for forming an image in accordance with control codes, said image forming apparatus comprising:

a printing unit for printing an image;

a plurality of code memories for storing control codes which are adapted to control the image forming apparatus having said printing unit; and

a processor for controlling the image forming apparatus in accordance with the control codes stored in at least one of said plurality of code memories,

wherein, after a power supply is turned on, said processor determines whether rewriting of the control codes has suspended or failed, said processor determines which one of said plurality of code memories was being rewritten if the rewriting of the control codes has suspended or failed, said processor controls transfer of new control codes from an external apparatus, and said processor controls rewriting of the control codes, which have been stored in the determined one of said plurality of code memories, with the new control codes transferred from the external apparatus in accordance with rewrite execution codes which are adapted to execute rewriting of the control codes and are transferred from the external apparatus.

30. A rewrite control method for rewriting control codes, which have been stored in a plurality of code memories and are adapted to control an image forming apparatus having a printing unit to form an image, said rewrite control method comprising:

a first control step of controlling the image forming apparatus in accordance with control codes stored in at least one of a plurality of code memories;

a first determining step of determining whether rewriting of the control codes has suspended or failed after a power supply is turned on;

a second determining step of determining which one of the plurality of code memories was being rewritten if rewriting of the control codes has suspended or failed;

a second control step of controlling transfer of new control codes from an external apparatus; and

a third control step of controlling rewriting of the control codes, which have been stored in the determined one of the plurality of code memories, with the new control codes transferred from the external apparatus in accordance with rewrite execution codes which are adapted to execute rewriting of the control codes and are transferred from the external apparatus.