US5065195A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color image forming apparatus having a freely installable and detachable process cartridge
Assignee: Konica Minolta Inc
•
Filing: 1990-06-28
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Granted: 1991-11-12
•
Expires: 2010-06-28
Abstract
Abstract The invention provides an apparatus for forming a color toner image on a photoreceptor belt. The photoreceptor belt is stretched to form a loop around a plurality of rollers and installed in a cartridge which is made to be detachable from the apparatus. The cartridge is made to additionally house a container for collecting residual toner removed from the photoreceptor belt or a toner supply unit for supplying toner to a plurality of developing devices.
Inventors
- 👤 Satoshi Haneda
- 👤 Masakazu Fukuchi
- 👤 Shunji Matsuo
- 👤 Shizuo Morita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:30
CPC Classifications
G; G03; G03G; G03G21/00; G03G21/16; G03G21/18; G03G21/1839; G03G21/1842; G03G21/185; G03G15/00; G03G15/01; G03G15/0105; G03G15/0126; G03G15/06; G03G15/08; G03G15/0822; G03G15/0848; G03G15/0849; G03G15/0855; G03G15/0865; G03G15/0877; G03G15/0879; G03G21/10; G03G21/105; G03G21/12; G03G21/1604; G03G21/1623; G03G21/1628; G03G2221/00; G03G2221/16; G03G2221/1603; G03G2221/1606; G03G2221/1615; G03G2221/1618; G03G2221/1624; G03G2221/163; G03G2221/1636; G03G2221/1651; G03G2221/1654; G03G2221/1672; G03G2221/1675; G03G2221/1678; G03G2221/1687; G03G2221/18; G03G2221/183
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
123 words
A color image forming apparatus, comprising: a photoreceptor belt for forming a latent image thereon, the photoreceptor belt being stretched to form a loop around a plurality of rotatable rollers; a plurality of developing means for developing the latent image on the photoreceptor belt to form a toner image; cleaning means for removing residual toner from the photoreceptor belt; a container, disposed inside the loop of the photoreceptor belt, for collecting residual toner therein; transporting means for transporting residual toner from the cleaning means to the container; and a cartridge comprising the photoreceptor belt, the cleaning means, the container and the transporting means in one unit; wherein the cartridge is adapted to be installable into and detachable from the color image forming apparatus.
Claim 2
Dependent Claim
123 words
A color image forming apparatus, comprising: a photoreceptor belt for forming a latent image thereon, the photoreceptor belt being stretched to form a loop around a plurality of rotatable rollers; a plurality of developing means for developing the latent image on the photoreceptor belt to form a toner image; cleaning means for removing residual toner from the photoreceptor belt; a container, disposed inside the loop of the photoreceptor belt, for collecting residual toner therein; transporting means for transporting residual toner from the cleaning means to the container; and a cartridge comprising the photoreceptor belt, the cleaning means, the container and the transporting means in one unit; wherein the cartridge is adapted to be installable into and detachable from the color image forming apparatus.
Claim 3
Dependent Claim
12 words
The apparatus of claim 1, wherein said container is an airtight box.
Claim 4
Dependent Claim
34 words
The apparatus of claim 1, further comprising guide means disposed inside the loop of the photoreceptor belt, for guiding the photoreceptor belt, wherein the container is formed on a part of the guide means.
Claim 5
Dependent Claim
40 words
The apparatus of claim 1, wherein the cartridge is provided with a handle on one side thereof, and wherein the container comprises an inlet for collecting residual toner on the side of the cartridge on which the handle is provided.
Claim 6
Dependent Claim
77 words
The apparatus of claim 1, wherein the apparatus includes an upper portion and a lower portion which are coupled together by a hinge so that the upper portion is movable to a slanted open position by being pivoted around the hinge, and wherein the cartridge is installed in the upper portion and wherein the container has an inlet for collecting residual toner at an upper position when the upper portion is moved to the slanted open position.
Claim 7
Dependent Claim
19 words
The apparatus of claim 1, wherein the container comprises distribution means for evenly distributing residual toner in the container.
Claim 8
Dependent Claim
17 words
The apparatus of claim 6, wherein the distribution means comprises a belt-like carrier provided inside the container.
Claim 9
Dependent Claim
19 words
The apparatus of claim 6, wherein the distribution means comprises means for exerting an impact force to the container.
Claim 10
Dependent Claim
38 words
The apparatus of claim 1, wherein the developing means is movable and detachable from the apparatus, and wherein a supply part of the developing means is covered when the developing means is moved or dismounted from the apparatus.
Claim 11
Dependent Claim
128 words
A color image forming apparatus, comprising: a photoreceptor belt for forming a latent image thereon, the photoreceptor belt for forming a latent image thereon, the photoreceptor belt being stretched to form a loop around a plurality of rotatable rollers; a cartridge, adapted to be installable into and detachable from the apparatus, for housing the photoreceptor belt; a plurality of developing means for developing the latent image on the photoreceptor belt so as to form a color toner image, the plurality of developing means being disposed to face the photoreceptor belt when the cartridge is installed in the apparatus; and a toner supply unit including a plurality of toner containers for supplying toner to the plurality of developing means, the toner supply unit being detachably mounted on the cartridge.
Claim 12
Dependent Claim
128 words
A color image forming apparatus, comprising: a photoreceptor belt for forming a latent image thereon, the photoreceptor belt for forming a latent image thereon, the photoreceptor belt being stretched to form a loop around a plurality of rotatable rollers; a cartridge, adapted to be installable into and detachable from the apparatus, for housing the photoreceptor belt; a plurality of developing means for developing the latent image on the photoreceptor belt so as to form a color toner image, the plurality of developing means being disposed to face the photoreceptor belt when the cartridge is installed in the apparatus; and a toner supply unit including a plurality of toner containers for supplying toner to the plurality of developing means, the toner supply unit being detachably mounted on the cartridge.
Claim 13
Dependent Claim
27 words
The apparatus of claim 10, wherein the toner supply unit is arranged to be mounted on the cartridge when the cartridge has been installed in the apparatus.
Claim 14
Dependent Claim
38 words
The apparatus of claim 10, wherein the developing means is movable and detachable from the apparatus; and wherein a supply part of the developing means is covered when the developing means is moved or detached from the apparatus.
Claim 15
Dependent Claim
112 words
A color image forming apparatus, comprising: a photoreceptor belt for forming a latent image thereon, the photoreceptor belt being stretched to form a loop around a plurality of rotatable rollers; a cartridge, adapted to be installable into and detachable from the apparatus, for housing the photoreceptor belt; a plurality of developing means for developing the latent image on the photoreceptor belt so as to form a color toner image, the plurality of developing means being disposed to face the photoreceptor belt when the cartridge is installed in the apparatus; and means for moving the cartridge, the moving means including means for moving the cartridge vertically and means for moving the cartridge horizontally.
Claim 16
Dependent Claim
112 words
A color image forming apparatus, comprising: a photoreceptor belt for forming a latent image thereon, the photoreceptor belt being stretched to form a loop around a plurality of rotatable rollers; a cartridge, adapted to be installable into and detachable from the apparatus, for housing the photoreceptor belt; a plurality of developing means for developing the latent image on the photoreceptor belt so as to form a color toner image, the plurality of developing means being disposed to face the photoreceptor belt when the cartridge is installed in the apparatus; and means for moving the cartridge, the moving means including means for moving the cartridge vertically and means for moving the cartridge horizontally.
Claim 17
Dependent Claim
29 words
The apparatus of claim 13, wherein the plurality of developing means are arranged to be detached from the apparatus after the cartridge is moved or detached from the apparatus.
Claim 18
Dependent Claim
38 words
The apparatus of claim 13, wherein the developing means is movable and detachable from the apparatus, and wherein the cartridge is arranged to be detached after the plurality of developing means is moved or detached from the apparatus.
Claim 19
Dependent Claim
38 words
The apparatus of claim 13, wherein the developing means is movable and detachable from the apparatus; and wherein a supply part of the developing means is covered when the developing means is moved or detached from the apparatus.
Claim 20
Dependent Claim
119 words
A color image forming apparatus, comprising: a photoreceptor belt for forming a latent image thereon, the photoreceptor belt being stretched to form a loop plurality of rotatable rollers; a cartridge, adapted to be installable into and detachable from the apparatus, for housing the photoreceptor belt; a plurality of developing means for developing the latent image on the photoreceptor belt so as to form a color toner image, the plurality of developing means being disposed to face the photoreceptor belt when the cartridge is installed in the apparatus; and means for moving the plurality of developing means, the moving means including means for moving the plurality of developing means vertically and means for moving the plurality of developing means horizontally.
Claim 21
Dependent Claim
119 words
A color image forming apparatus, comprising: a photoreceptor belt for forming a latent image thereon, the photoreceptor belt being stretched to form a loop plurality of rotatable rollers; a cartridge, adapted to be installable into and detachable from the apparatus, for housing the photoreceptor belt; a plurality of developing means for developing the latent image on the photoreceptor belt so as to form a color toner image, the plurality of developing means being disposed to face the photoreceptor belt when the cartridge is installed in the apparatus; and means for moving the plurality of developing means, the moving means including means for moving the plurality of developing means vertically and means for moving the plurality of developing means horizontally.
Claim 22
Dependent Claim
41 words
The apparatus of claim 14, wherein the plurality of developing means is detachable from the apparatus, and wherein the cartridge is arranged to be detached from the apparatus after the plurality of developing means is moved or detached from the apparatus.
Claim 23
Dependent Claim
35 words
The apparatus of claim 17, wherein the cartridge is movable, and wherein the plurality of developing means are arranged to be detached from the apparatus after the cartridge is moved or detached from the apparatus.
Claim 24
Dependent Claim
36 words
The apparatus of claim 17, wherein the developing means is detachable from the apparatus; and wherein a supply part of the developing means is covered when the developing means is moved or detached from the apparatus.
Claim 25
Dependent Claim
134 words
A color image forming apparatus, comprising: a photoreceptor belt for forming a latent image thereon, the photoreceptor belt being stretched to form a loop around a plurality of rotatable rollers; a plurality of developing means for developing the latent image on the photoreceptor belt so as to form a color toner image, the plurality of developing means being disposed to fae the photoreceptor belt when the cartridge is installed in the apparatus; a toner supply unit including a plurality of toner containers for supplying toner to the plurality of developing means; and a cartridge, adapted to be installable into and detachable from the apparatus, for housing the photoreceptor belt and the toner supply unit, the toner supply unit being adapted to be detachable from the cartridge when the cartridge is detached from the apparatus.
Claim 26
Dependent Claim
134 words
A color image forming apparatus, comprising: a photoreceptor belt for forming a latent image thereon, the photoreceptor belt being stretched to form a loop around a plurality of rotatable rollers; a plurality of developing means for developing the latent image on the photoreceptor belt so as to form a color toner image, the plurality of developing means being disposed to fae the photoreceptor belt when the cartridge is installed in the apparatus; a toner supply unit including a plurality of toner containers for supplying toner to the plurality of developing means; and a cartridge, adapted to be installable into and detachable from the apparatus, for housing the photoreceptor belt and the toner supply unit, the toner supply unit being adapted to be detachable from the cartridge when the cartridge is detached from the apparatus.
References Cited (Backward Citations)
JPS56150782A
Cited
US4563076A
Cited
JPS6075850A
Cited
JPS6076766A
Cited
JPS6095456A
Cited
JPS6095458A
Cited
JPS60158475A
Cited
JPS61100700A
Cited
JPS61149972A
Cited
US4690544A
Cited
EP0351894A2
Cited
JPS6348350A
Cited
US4806967A
Cited
US4873554A
Cited
EP0370455A2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-11-11 | 1995-05-13 | 1995-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-11-11 | 1999-05-13 | 1999-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-11-11 | 2003-05-13 | 2003-11-12 | $7700.00 | Window Closed / Lapsed |