US4468113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transfer type electrostatic reproducing apparatus
Assignee: Konica Minolta Inc
•
Filing: 1982-10-08
•
Granted: 1984-08-28
•
Expires: 2002-10-08
Abstract
Abstract An electrostatic reproducing apparatus provided with a transfer paper thickness detecting element and/or a transfer paper size detecting element and an exposure device between the development device and the transfer device, the quantity of light to be irradiated onto the photosensitive member from the exposure device is adjusted according to a paper thickness information of the paper thickness detecting element and/or a paper size information of the transfer paper size detecting element. The paper thickness detecting element comprises a light emitting element and a light receiving element. The paper size detecting element comprises a magnet mounted on a paper feeding cassette and a lead switch mounted on the apparatus body side correspondingly thereto.
Inventors
- 👤 Mitsuo Motohashi
- 👤 Mitsugu Nemoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:45
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/14; G03G15/16; G03G15/169
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
97 words
In an electrostatic reproducing apparatus which operates for developing an electrostatic latent image on a photosensitive member to a toner image through a development means and transferring said toner image to a transfer paper through a transfer means, the improvement characterized in that said electrostatic reproducing apparatus is provided with a transfer paper thickness detecting means and an exposure means between the development means and the transfer means, the quantity of light to be irradiated onto the photosensitive member from said exposure means is adjusted according to a paper thickness information of said paper thickness detecting means.
Claim 2
Dependent Claim
97 words
In an electrostatic reproducing apparatus which operates for developing an electrostatic latent image on a photosensitive member to a toner image through a development means and transferring said toner image to a transfer paper through a transfer means, the improvement characterized in that said electrostatic reproducing apparatus is provided with a transfer paper thickness detecting means and an exposure means between the development means and the transfer means, the quantity of light to be irradiated onto the photosensitive member from said exposure means is adjusted according to a paper thickness information of said paper thickness detecting means.
Claim 3
Dependent Claim
22 words
The apparatus as defined in claim 1, said paper thickness detecting means comprising a light emitting element and a light receiving element.
Claim 4
Dependent Claim
68 words
The apparatus as defined in claim 2, comprising a detecting circuit generating a paper thickness signal through compensating a difference in transmission factor due to the kind of paper according to an electrical signal of the light receiving element, a control signal generating circuit generating a control signal from the paper thickness signal, and a control circuit to send said control signal to an AC voltage impressing circuit.
Claim 5
Dependent Claim
14 words
The apparatus as defined in claim 1, said transfer means being a transfer electrode.
Claim 6
Dependent Claim
20 words
The apparatus as defined in claim 1, provided with a separating means on the downstream side of the photosensitive member.
Claim 7
Dependent Claim
14 words
The apparatus as defined in claim 5, said separating means being a separating electrode.
Claim 8
Dependent Claim
93 words
In an electrostatic reproducing apparatus which operates for developing an electrostatic latent image on a photosensitive member to a toner image throught a development means and transferring said toner image to a transfer paper through a transfer means, the improvement characterized in that said electrostatic reproducing apparatus is provided with a transfer paper size detecting means and an exposure means between the development means and the transfer means, the quantity of light to be irradiated onto the photosensitive member for said exposure means is adjusted according to an information of said detecting means.
Claim 9
Dependent Claim
93 words
In an electrostatic reproducing apparatus which operates for developing an electrostatic latent image on a photosensitive member to a toner image throught a development means and transferring said toner image to a transfer paper through a transfer means, the improvement characterized in that said electrostatic reproducing apparatus is provided with a transfer paper size detecting means and an exposure means between the development means and the transfer means, the quantity of light to be irradiated onto the photosensitive member for said exposure means is adjusted according to an information of said detecting means.
Claim 10
Dependent Claim
33 words
The apparatus as defined in claim 7, said paper size detecting means comprising a magnet mounted on a paper feeding cassette and a lead switch mounted on the apparatus body side correspondingly thereto.
Claim 11
Dependent Claim
45 words
The apparatus as defined in claim 7, comprising a control signal generating circuit generating a control signal upon receipt of a paper size signal from the paper size detecting means, and a control circuit to send the control signal to an AC voltage impressing circuit.
Claim 12
Dependent Claim
14 words
The apparatus as defined in claim 7, said transfer means being a transfer electrode.
Claim 13
Dependent Claim
20 words
The apparatus as defined in claim 7, provided with a separating means on the downstream side of the photosensitive member.
Claim 14
Dependent Claim
14 words
The apparatus as defined in claim 11, said separating means being a separating electrode.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-08-28 | 1988-02-27 | 1988-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-28 | 1992-02-27 | 1992-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-28 | 1996-02-27 | 1996-08-28 | $7700.00 | Window Closed / Lapsed |