Printhead with malfunction prevention function and printing apparatus using it
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 29, 2002
Grant Date -
N/A
app pub date -
Nov 10, 1999
filing date -
Nov 11, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A printhead and a printing apparatus using the printhead capable of protecting the printhead without causing malfunction in the printhead even if electrical connection between the printing apparatus and the printhead is cut off for some reason. A VDD monitor 400 monitors a voltage supplied via a pad 315 to a cutoff-function added level converter function 121 to perform drive control on a heater 301. The operation of a power transistor 302 to drive the heater 301 is forcefully turned OFF in accordance with the result of monitoring.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully