US4996540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recorder with ligament supported scan mirror and resilient optical system support
Assignee: Konica Minolta Inc
•
Filing: 1989-01-24
•
Granted: 1991-02-26
•
Expires: 2009-01-24
Abstract
Abstract An image recording apparatus having a beam scanning optical system using a deflector having a deflecting member, wherein a resilient member is interposed between the optical system including said deflector and an image forming portion. The resilient member is made of a viscous resilient elastomer of low hardness.
Inventors
- 👤 Toshihiro Motoi
- 👤 Toshihiko Nakazawa
- 👤 Toshihiro Takesue
- 👤 Satoshi Takahashi
- 👤 Takashi Murahashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:10
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/04; B; B41; B41J; B41J2/00; B41J2/435; B41J2/47; B41J2/471; H04N1/113; H04N1/1135; H04N2201/00; H04N2201/04; H04N2201/0402; H04N2201/0428
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
109 words
In an image recording apparatus comprising an image forming portion including an image retainer, and a beam scanning optical system including a deflector having a deflecting member with a frame, a reflecting mirror, a drive coil and ligaments molded into one piece, the improvement wherein a resilient member is interposed between said optical system and said image forming portion, said resilient member having the characteristic of i<2.8% and i={1/(f/fn).sup.2 -1}×100% wherein i is the theoretical value of oscillation transmissibility of said resilient member, fn is the intrinsic frequency (Hz) of said optical system including said resilient member, and f is the oscillation frequency (Hz) of said image forming portion.
Claim 2
Dependent Claim
109 words
In an image recording apparatus comprising an image forming portion including an image retainer, and a beam scanning optical system including a deflector having a deflecting member with a frame, a reflecting mirror, a drive coil and ligaments molded into one piece, the improvement wherein a resilient member is interposed between said optical system and said image forming portion, said resilient member having the characteristic of i<2.8% and i={1/(f/fn).sup.2 -1}×100% wherein i is the theoretical value of oscillation transmissibility of said resilient member, fn is the intrinsic frequency (Hz) of said optical system including said resilient member, and f is the oscillation frequency (Hz) of said image forming portion.
Claim 3
Dependent Claim
22 words
The image recording apparatus according to claim 1, wherein said resilient member is made of a viscous resilient elastomer of low hardness.
Claim 4
Dependent Claim
20 words
The image recording apparatus according to claim 1, wherein said resilient member is made of a viscous resilient polyurethane elastomer.
Claim 5
Dependent Claim
37 words
The image recording apparatus according to claim 1, wherein said resilient member has at both ends thereof bolts, and said resilient member being connected to said optical system and said image forming portion by said bolts, respectively.
References Cited (Backward Citations)
US4684228A
Cited
JPS6314117A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-02-25 | 1994-08-27 | 1995-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-02-25 | 1998-08-27 | 1999-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-02-25 | 2002-08-27 | 2003-02-26 | $7700.00 | Window Closed / Lapsed |