Patent US4893151A successfully refreshed from Google Patents.
US4893151A
Expired / Lapsed
US
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Image developing apparatus
Assignee: Toshiba Corp
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Filing: 1988-11-25
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Granted: 1990-01-09
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Expires: 2008-11-25
Abstract
Abstract An image developing apparatus capable of developing high quality images without a fog and a toner density fluctuation over an extended period of time while reducing a driving torque in an image developing operation is disclosed. The image developing apparatus may includes a toner conveyer device having its surface coated with a ceramic for conveying non-magnetic single component toner to the image bearer in order to develop the latent image, and a lamination controller device for controlling a thickness of non-magnetic single component toner lamina to be formed on the toner conveyer device. The image developing apparatus may includes a toner conveyer device for conveying non-magnetic single component toner to the image bearer in order to develop the latent image, and a lamination controller device having its surfaces coated with a ceramic for controlling a thickness of non-magnetic single component toner lamina to be formed on the toner conveyer device.
Inventors
- 👤 Mutsuki Yamazaki
- 👤 Kaoru Oshima
- 👤 Toshimasa Takano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:00
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/06; G03G15/08; G03G15/0806; G03G15/0812; G03G15/0818
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
67 words
An image developing apparatus, comprising: image bearer means for bearing a latent image; toner conveyer means for conveying non-magnetic single component toner to the image bearer means in order to develop the latent image, the toner conveyer means having its surface coated with a ceramic; and lamination controller means for controlling a thickness of non-magnetic single component toner lamina to be formed on the toner conveyer means.
Claim 2
Dependent Claim
67 words
An image developing apparatus, comprising: image bearer means for bearing a latent image; toner conveyer means for conveying non-magnetic single component toner to the image bearer means in order to develop the latent image, the toner conveyer means having its surface coated with a ceramic; and lamination controller means for controlling a thickness of non-magnetic single component toner lamina to be formed on the toner conveyer means.
Claim 3
Dependent Claim
19 words
The image developing apparatus of claim 1, wherein the ceramic includes at least one of Al, B, and C.
Claim 4
Dependent Claim
18 words
The image developing apparatus of claim 1, wherein the ceramic includes at least one of Si and Ge.
Claim 5
Dependent Claim
18 words
The image developing apparatus of claim 1, wherein the ceramic includes at least one of Ti and W.
Claim 6
Dependent Claim
27 words
The image developing apparatus of claim 3, wherein the ceramic further includes at least one of atoms in the III and V groups of the periodic table.
Claim 7
Dependent Claim
21 words
The image developing apparatus of claim 2, wherein the ceramic further includes at least one of N, 0, H, and halogen.
Claim 8
Dependent Claim
21 words
The image developing apparatus of claim 5, wherein the ceramic further includes at least one of N, 0, H, and halogen.
Claim 9
Dependent Claim
21 words
The image developing apparatus of claim 6, wherein the ceramic contains 1 to 40 atomic% of one of H and halogen.
Claim 10
Dependent Claim
21 words
The image developing apparatus of claim 7, wherein the ceramic contains 1 to 40 atomic% of one of H and halogen.
Claim 11
Dependent Claim
67 words
An image developing apparatus, comprising: image bearer means for bearing a latent image; toner conveyer means for conveying non-magnetic single component toner to the image bearer means in order to develop the latent image; and lamination controller means for controlling a thickness of non-magnetic single component toner lamina to be formed on the toner conveyer means, the lamination controller means having its surface coated with a ceramic.
Claim 12
Dependent Claim
67 words
An image developing apparatus, comprising: image bearer means for bearing a latent image; toner conveyer means for conveying non-magnetic single component toner to the image bearer means in order to develop the latent image; and lamination controller means for controlling a thickness of non-magnetic single component toner lamina to be formed on the toner conveyer means, the lamination controller means having its surface coated with a ceramic.
Claim 13
Dependent Claim
18 words
The image developing apparatus of claim 10, wherein the ceramic includes at least one of Ti and W.
Claim 14
Dependent Claim
19 words
The image developing apparatus of claim 10, wherein the ceramic includes at least one of Al, B, and C.
Claim 15
Dependent Claim
18 words
The image developing apparatus of claim 10, wherein the ceramic includes at least one of Si and Ge.
Claim 16
Dependent Claim
27 words
The image developing apparatus of claim 13, wherein the ceramic further includes at least one of atoms in the III and V groups of the periodic table.
Claim 17
Dependent Claim
21 words
The image developing apparatus of claim 11, wherein the ceramic further includes at least one of N, 0, H, and halogen.
Claim 18
Dependent Claim
21 words
The image developing apparatus of claim 12, wherein the ceramic further includes at least one of N, 0, H, and halogen.
Claim 19
Dependent Claim
21 words
The image developing apparatus of claim 14, wherein the ceramic further includes at least one of N, 0, H, and halogen.
Claim 20
Dependent Claim
21 words
The image developing apparatus of claim 15, wherein the ceramic contains 1 to 40 atomic% of one of H and halogen.
Claim 21
Dependent Claim
21 words
The image developing apparatus of claim 16, wherein the ceramic contains 1 to 40 atomic% of one of H and halogen.
Claim 22
Dependent Claim
21 words
The image developing apparatus of claim 17, wherein the ceramic contains 1 to 40 atomic% of one of H and halogen.
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) | 1993-01-08 | 1993-07-10 | 1994-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-01-08 | 1997-07-10 | 1998-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-01-08 | 2001-07-10 | 2002-01-09 | $7700.00 | Window Closed / Lapsed |