Title:
METHOD FOR INDICATING USAGE OF INK RIBBON CASSETTE IN PRINTER
Document Type and Number:
Japanese Patent JP3049914
Kind Code:
B2
Abstract:
PURPOSE: To make it possible to accurately indicate the usage of an ink ribbon under the condition that an ink ribbon cassette is changed in the midway of its use in a printer, in which the ink ribbon cassette is employed.
CONSTITUTION: The ribbon code label 6 of an installed ink ribbon cassette is read with a ribbon code read sensor 7, in order to input ink ribbon identification information in a CPU 3. On the other hand, the unuse of the ink ribbon is detected with a head sensor 8. At the start of the use of the ink ribbon, the CPU 3 stores the number of printable sheets in the identification information as the number of residual sheets in a memory 4 together with the ink ribbon identification information. By comparing the ink ribbon identification information with the ink ribbon identification information of the ink ribbon cassette, which is installed in the midway of use, the memory of the number of residual sheets of the ink ribbon cassette is renewed to the coincided one and the indication of the number is performed continuously. Thus, the residual quantity of the ink ribbon cassette used at present can be exactly grasped at all times.
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Inventors:
Shojiro Asami
Koji Yui
Koji Yui
Application Number:
JP3244292A
Publication Date:
June 05, 2000
Filing Date:
February 20, 1992
Export Citation:
Assignee:
ソニー株式会社
International Classes:
B41J17/36; B41J35/36; (IPC1-7): B41J35/36; B41J17/36
Domestic Patent References:
| JP2276665A | ||||
| JP6485787A |
Attorney, Agent or Firm:
Fujiya Shiga (1 person outside)