US5570160A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image forming apparatus having a rotatable photoreceptor
Assignee: Konica Minolta Inc
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Filing: 1995-06-27
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Granted: 1996-10-29
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Expires: 2015-06-27
Abstract
Abstract An image forming apparatus for forming a toner image. The apparatus includes: a photoreceptor drum, having a side surface and a circumferential surface, for forming an image on the circumferential surface: a driving means for driving the photoreceptor drum; a sliding member for decreasing steady state speed fluctuations of the photoreceptor drum; and an elastic member for pressing the sliding member onto the side surface of the photoreceptor drum.
Inventors
- 👤 Tadashi Miwa
- 👤 Isao Matsuoka
- 👤 Sakaho Matsunaga
- 👤 Takayuki Miyamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:20
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/75; G03G15/757
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
59 words
An image forming apparatus, comprising: a photoreceptor, having a side surface and a circumferential surface, for forming an image on said circumferential surface thereof: a driving means for driving said photoreceptor; a sliding member for decreasing steady state speed fluctuations of said photoreceptor; and an elastic member for pressing said sliding member onto said side surface of said photoreceptor.
Claim 2
Dependent Claim
59 words
An image forming apparatus, comprising: a photoreceptor, having a side surface and a circumferential surface, for forming an image on said circumferential surface thereof: a driving means for driving said photoreceptor; a sliding member for decreasing steady state speed fluctuations of said photoreceptor; and an elastic member for pressing said sliding member onto said side surface of said photoreceptor.
Claim 3
Dependent Claim
16 words
The apparatus of claim 1, wherein said sliding member and said elastic member are configured uniformly.
Claim 4
Dependent Claim
13 words
The apparatus of claim 1, wherein said elastic member is a spring member.
Claim 5
Dependent Claim
14 words
The apparatus of claim 3, wherein said spring member is a leaf spring member.
Claim 6
Dependent Claim
14 words
The apparatus of claim 3, wherein said spring member is a coil spring member.
Claim 7
Dependent Claim
13 words
The apparatus of claim 1, wherein said elastic member is a viscoelastic member.
Claim 8
Dependent Claim
14 words
The apparatus of claim 6, wherein said viscoelastic member is a foaming resin member.
Claim 9
Dependent Claim
22 words
The apparatus of claim 1, wherein said driving means drives said photoreceptor so as to impel said photoreceptor toward said sliding member.
Claim 10
Dependent Claim
36 words
The apparatus of claim 8, wherein said driving means drives said photoreceptor through a helical gear so that a thrust of said helical gear creates a pressure-contact force to impel said photoreceptor toward said sliding member.
Claim 11
Dependent Claim
75 words
An image forming apparatus, comprising: a photoreceptor, having a side surface and a circumferential surface, for forming an image on said circumferential surface thereof: a driving means for driving said photoreceptor; a sliding member for decreasing steady state speed fluctuations of said photoreceptor; an elastic member for pressing said sliding member onto said side surface of said photoreceptor, and a cartridge for accommodating at least said photoreceptor drum, said sliding member, and said elastic member.
Claim 12
Dependent Claim
75 words
An image forming apparatus, comprising: a photoreceptor, having a side surface and a circumferential surface, for forming an image on said circumferential surface thereof: a driving means for driving said photoreceptor; a sliding member for decreasing steady state speed fluctuations of said photoreceptor; an elastic member for pressing said sliding member onto said side surface of said photoreceptor, and a cartridge for accommodating at least said photoreceptor drum, said sliding member, and said elastic member.
Claim 13
Dependent Claim
16 words
The apparatus of claim 10, wherein said sliding member and said elastic member are configured uniformly.
Claim 14
Dependent Claim
13 words
The apparatus of claim 10, wherein said elastic member is a spring member.
Claim 15
Dependent Claim
14 words
The apparatus of claim 12, wherein said spring member is a leaf spring member.
Claim 16
Dependent Claim
14 words
The apparatus of claim 12, wherein said spring member is a coil spring member.
Claim 17
Dependent Claim
13 words
The apparatus of claim 10, wherein said elastic member is a viscoelastic member.
Claim 18
Dependent Claim
14 words
The apparatus of claim 15, wherein said viscoelastic member is a foaming resin member.
Claim 19
Dependent Claim
22 words
The apparatus of claim 10, wherein said driving means drives said photoreceptor so as to impel said photoreceptor toward said sliding member.
Claim 20
Dependent Claim
36 words
The apparatus of claim 17, wherein said driving means drives said photoreceptor through a helical gear so that a thrust of said helical gear creates a pressure-contact force to impel said photoreceptor toward said sliding member.
Claim 21
Dependent Claim
78 words
An image forming apparatus, comprising: a photoreceptor belt for forming an image on a surface thereof: a drive roller means, having a side surface and a circumferential surface, for supporting said photoreceptor belt suspended on said circumferential surface; a driving means for driving said driving roller means; a sliding member for decreasing steady state speed fluctuations of said photoreceptor belt; and an elastic member for pressing said sliding member onto said side surface of said drive roller means.
Claim 22
Dependent Claim
78 words
An image forming apparatus, comprising: a photoreceptor belt for forming an image on a surface thereof: a drive roller means, having a side surface and a circumferential surface, for supporting said photoreceptor belt suspended on said circumferential surface; a driving means for driving said driving roller means; a sliding member for decreasing steady state speed fluctuations of said photoreceptor belt; and an elastic member for pressing said sliding member onto said side surface of said drive roller means.
Claim 23
Dependent Claim
16 words
The apparatus of claim 19, wherein said sliding member and said elastic member are configured uniformly.
Claim 24
Dependent Claim
13 words
The apparatus of claim 19, wherein said elastic member is a spring member.
Claim 25
Dependent Claim
14 words
The apparatus of claim 21, wherein said spring member is a leaf spring member.
Claim 26
Dependent Claim
14 words
The apparatus of claim 21, wherein said spring member is a coil spring member.
Claim 27
Dependent Claim
13 words
The apparatus of claim 19, wherein said elastic member is a viscoelastic member.
Claim 28
Dependent Claim
14 words
The apparatus of claim 24, wherein said viscoelastic member is a foaming resin member.
Claim 29
Dependent Claim
24 words
The apparatus of claim 19, wherein said driving means drives said photoreceptor so as to impel said driving roller means toward said sliding member.
Claim 30
Dependent Claim
40 words
The apparatus of claim 26, wherein said driving means drives said driving roller means through a helical gear so that a thrust of said helical gear creates a pressure-contact force to impel said driving roller means toward said sliding member.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-10-29 | 2000-04-29 | 2000-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-10-29 | 2004-04-29 | 2004-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-10-29 | 2008-04-29 | 2008-10-29 | $7700.00 | Window Closed / Lapsed |