The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 01, 2003

Filed:

May. 22, 2001
Applicant:
Inventor:

Beom-ro Lee, Gyeonggi-do, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41F 1/54 ;
U.S. Cl.
CPC ...
B41F 1/54 ;
Abstract

A method of a replacement component used in a printer communicating with a controller of the printer, and a method of a controller of a printer communicating with a replacement component used in a printer are disclosed. The method of the replacement component communicating with the controller includes the steps of: a memory module of the replacement component deciding whether or not a predetermined password signal is in information received via a communication interface; and the memory module communicating with the controller of the printer when the password signal is in the received information. Since the replacement component for a printer is adapted to not communicate with a controller which does not transmit a preset communication allowing signal, the characteristic information of the replacement component is prevented from being leaked. In addition, it can be prevented that a bad component is installed and used in the printer.


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