Title:
SYSTEM FOR PREVENTING FRAUDULENT USE OF CONSUMABLE ARTICLE
Document Type and Number:
Japanese Patent JP2004093693
Kind Code:
A
Abstract:
To provide a method which, in order to maintain the qualities of a printer and a consumable article, prevents use of a pirated consumable article or use of a consumable article fraudulently refilled with toner.
An RFID sheet is stuck to a toner set. An antenna and an RFID control circuit are provided for a printer control board. A random number having two or more bytes is written in a data area of the FRID. Encryption data created using a pattern predetermined from the random number is also written. When a printer is started or when an opening/closing door for consumable article replacement is closed, it is checked whether the random number and the encryption data match or not.
Inventors:
UEHARA SHINGO
KATAOKA SATOSHI
KOBAYASHI TSUTOMU
SATO RYOJI
KATAOKA SATOSHI
KOBAYASHI TSUTOMU
SATO RYOJI
Application Number:
JP2002251880A
Publication Date:
March 25, 2004
Filing Date:
August 29, 2002
Export Citation:
Assignee:
CASIO ELECTRONICS CO LTD
CASIO COMPUTER CO LTD
CASIO COMPUTER CO LTD
International Classes:
G03G21/00; H04N1/00; (IPC1-7): G03G21/00; H04N1/00
Attorney, Agent or Firm:
Yoshiyuki Osuga
Terumi Yamamoto
Terumi Yamamoto