Abstract A developing electrode device for a copying machine using a photosensitive material relying on temperature can set values despite variations in and deterioration of the initial characteristic of the photosensitive material to always produce stabilized copy images. The device includes a power source having a detector for detecting the temperature of a photosensitive body, a linear amplification circuit for amplifying signals of the detector, a clamping circuit for clamping output voltages of the linear amplification circuit in excess of normal temperature, an addition circuit for permitting the output voltages of the linear amplification circuit to move in parallel within a range of ambient temperatures and means for supplying the output of said addition circuit to a developing electrode.
Inventors
👤 Masaaki Tanaka
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-11-07 12:18
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/06; G03G15/065
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
82 words
A power source for a developing electrode comprising: a detector for detecting the temperature of a photosensitive body; a linear amplification circuit for amplifying signals of the detector, a clamping circuit for clamping output voltages of the linear amplification circuit in excess of normal temperature; an addition circuit for permitting the output voltages of the linear amplification circuit to move in parallel within a range of ambient temperatures; and means for supplying the output of the addition circuit to the developing electrode.
Claim 2
Dependent Claim
82 words
A power source for a developing electrode comprising: a detector for detecting the temperature of a photosensitive body; a linear amplification circuit for amplifying signals of the detector, a clamping circuit for clamping output voltages of the linear amplification circuit in excess of normal temperature; an addition circuit for permitting the output voltages of the linear amplification circuit to move in parallel within a range of ambient temperatures; and means for supplying the output of the addition circuit to the developing electrode.
Claim 3
Dependent Claim
28 words
A power source as set forth in claim 1, including a power source circuit provided with a series pass circuit controlled by the output of the addition circuit.
Claim 4
Dependent Claim
19 words
A power source as set forth in claim 1 wherein the linear amplification circuit comprises a differential amplification circuit.
Claim 5
Dependent Claim
19 words
A power source as set forth in claim 2 wherein the linear amplification circuit comprises a differential amplification circuit.