Image formation apparatus with temperature controller

Electrophotography – Control of electrophotography process – Control of fixing

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C399S069000, C399S070000

Reexamination Certificate

active

11167644

ABSTRACT:
In a temperature detector a smoother circuit receives a pulse signal generated by a pulse signal generation circuit to smooth the signal and transmit it to a first node. A comparator compares a level in voltage transmitted on the node with that in voltage on a second node connected to a thermistor element line and outputs a resultant comparison as a detection signal to a heater controller. The temperature detector can have on the first node a reference voltage adjustable by a duty ratio of the pulse signal output by the pulse signal generation circuit. A resistor or similar component can be dispensed with and simply by adjusting the pulse signal's duty ratio the reference voltage can be adjusted. Temperature can thus be detected with high precision.

REFERENCES:
patent: 4703886 (1987-11-01), Kirby
patent: 6959158 (2005-10-01), Ohta
patent: 7-55589 (1995-03-01), None
patent: 8-292107 (1996-11-01), None
European Search Report for European Application No. EP 05 01 3958 mailed on Sep. 19, 2005, 3 pages.
Patent Abstracts of Japan, Publication No. 07-055589, Publication Date: Mar. 3, 1995, 1 page.
Patent Abstracts of Japan, Publication No. 08-292107, Publication Date: Nov. 5, 1996, 1 page.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Image formation apparatus with temperature controller does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Image formation apparatus with temperature controller, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image formation apparatus with temperature controller will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3855163

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.