DEVICE WITH MACHINE TYPE IDENTIFYING FUNCTION, MACHINE TYPE IDENTIFYING METHOD AND STORAGE MEDIUM

Title:

DEVICE WITH MACHINE TYPE IDENTIFYING FUNCTION, MACHINE TYPE IDENTIFYING METHOD AND STORAGE MEDIUM

Document Type and Number:

Japanese Patent JP2000293369

Kind Code:

A

Abstract:

To obtain, without increasing cost, a device having a machine type identifying function, a machine type identifying method and a storage medium which prevent the performance of a device such as a copying machine from being illegally increased by software exchange or prescribed unit exchange.

A main controller 11 has a backup memory 115 which stores machine type identification information and a CPU 111 that identifies whether the machine type identification information of some controllers (unit) among a plurality of controllers (unit) is different and issues an alarm or makes the device inoperable when the machine type identification information is different. A device controller 12 and a printer controller 13 have backup memories 125 and 135 storing the machine type identification information, respectively.

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Inventors:

SUGIURA TAKU
UCHIZONO TAKEJI
IZEKI YUKIMASA
TAIRA MASANOBU
AIKO YASUYUKI

Application Number:

JP10135099A

Publication Date:

October 20, 2000

Filing Date:

April 08, 1999

Export Citation:

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Assignee:

CANON KK

International Classes:

G06F15/16; B41J29/38; G03G21/00; G03G21/04; G06F9/06; G06F21/12; (IPC1-7): G06F9/06; B41J29/38; G03G21/00; G03G21/04; G06F15/16

Attorney, Agent or Firm:

Toshihiko Watanabe

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