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.
Patent No.:
Date of Patent:
Mar. 27, 1979
Filed:
Jan. 11, 1977
Applicant:
Inventor:
Gottfried Lange, Erlangen, DE;
Assignee:
Siemens Aktiengesellschaft, Berlin & Munich, DE;
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355 14 ; 118-7 ; 118646 ; 355 / ; 355-4 ;
Abstract
A method and apparatus for effecting the visualization of electrostatic images. During the deposition of the pigment in the developing area, the absorption of light is measured at least at one part of the surface of the image so as to form a signal, and that the further supply of pigment is controlled in accordance with this signal. Through the control, meaning the termination or break off of the developing sequence upon reaching of a predetermined image coating, respectively, color depth, such as darkening, there is obtained the identical picture characteristics for all exposures.