US4751552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image forming apparatus
Assignee: Sharp Corp
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Filing: 1987-05-12
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Granted: 1988-06-14
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Expires: 2007-05-12
Abstract
Abstract An image forming apparatus has an upper unit which can be separated from a lower unit. The lower unit contains a paper cassette and a sheet discharged from the cassette is turned over by a paper turning member having a curved surface and is introduced into a transporting path along the boundary of the upper unit and the lower unit. The paper turning member is separable into an upper piece attached to the upper unit and a lower piece attached to the lower unit such that the operator has only to open the upper unit, when there is a jamming of paper, and can remove the jammed paper either from the paper transporting route or at the position of the paper turning member.
Inventors
- 👤 Masakatsu Itoigawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:14
CPC Classifications
G; G03; G03G; G03G21/00; G03G21/16; G03G21/1604; G03G21/1623; G03G21/1638; G03G2221/00; G03G2221/16; G03G2221/1603; G03G2221/1672; G03G2221/1675; G03G2221/1678; G03G2221/1687
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
144 words
In an image forming apparatus comprising a lower unit, an upper unit which is supported by said lower unit rotatably around an axis, and defines a boundary with said lower unit, a paper cassette removably attached to said lower unit and having a paper discharging end, and a paper turning member disposed near said paper discharging end of said paper cassette and serving to turn a discharged sheet from said paper discharging end and to direct said sheet into a paper transporting route formed at said boundary between said lower unit and said upper unit, the improvement wherein said axis is so positioned that said upper unit opens above said paper discharging end of said paper cassette, and said paper turning member is divided into an upper piece attached to said upper unit and a lower piece which is attached to said lower unit.
Claim 2
Dependent Claim
144 words
In an image forming apparatus comprising a lower unit, an upper unit which is supported by said lower unit rotatably around an axis, and defines a boundary with said lower unit, a paper cassette removably attached to said lower unit and having a paper discharging end, and a paper turning member disposed near said paper discharging end of said paper cassette and serving to turn a discharged sheet from said paper discharging end and to direct said sheet into a paper transporting route formed at said boundary between said lower unit and said upper unit, the improvement wherein said axis is so positioned that said upper unit opens above said paper discharging end of said paper cassette, and said paper turning member is divided into an upper piece attached to said upper unit and a lower piece which is attached to said lower unit.
Claim 3
Dependent Claim
34 words
The image forming apparatus of claim 1 wherein said upper piece and said lower piece are engaged with respect to each other when said upper unit is closed with respect to said lower unit.
Claim 4
Dependent Claim
21 words
The image forming apparatus of claim 1 wherein said upper piece is formed unistructurally as a part of said upper unit.
Claim 5
Dependent Claim
20 words
The image forming apparatus of claim 1 wherein said upper piece and said lower piece have comb-like mutually engageable surfaces.
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) | 1991-06-14 | 1991-12-14 | 1992-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-06-14 | 1995-12-14 | 1996-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-06-14 | 1999-12-14 | 2000-06-14 | $7700.00 | Window Closed / Lapsed |