Title:
METHOD FOR DETECTING IMAGE NOISE, IMAGE SENSOR, AND RECORDER EMPLOYING THEM
Document Type and Number:
Japanese Patent JP3834928
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain an image sensor for detecting a specified image noise easily and a recorder generating no image noise by printing the light receiving face of an image sensor to form a test pattern and then detecting a specified image noise in a recorder.
SOLUTION: A drive source required for cleaning, e.g. the motor of a vacuum pump for driving the suction means of a cleaning system, or various actuators are driven. Various sensor sections 84 perform various detections, e.g. detection of dirt on the nozzle face of a recording head through a dirt sensor for head or detection of image noise from a test pattern at a noise detecting section, and deliver detection signals to a specified section. A head jet drive section 74 receives a noise detection signal directly or through a CPU 66 and controls the diameter of a dot printed in normal print mode to eliminate detected image noise.
Inventors:
Hero Yasutomi
Application Number:
JP10972797A
Publication Date:
October 18, 2006
Filing Date:
April 25, 1997
Export Citation:
Assignee:
Konica Minolta Holdings Co., Ltd.
International Classes:
B41J2/01; B41J2/125; B41J2/205; B41J29/46; G06T1/00; G06T7/00; (IPC1-7): B41J2/01; B41J2/205; B41J2/125; B41J29/46; G06T7/00
Domestic Patent References:
| JP4173150A |
Attorney, Agent or Firm:
Masaru Ishihara