EP0195572A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Printer and paper insertion device suitable therefor
Assignee: Oki Electric Industry Co Ltd
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Filing: 1986-03-10
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Granted: —
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Expires: 2006-03-10
Abstract
Abstract A printer comprises a first paper feed passage (9) extending from the rear of a platen (6) to a printing position through the lower part of the platen (6), and a second paper feed passage (10), (11)extending from substantially just under the printing position to the printing position. A first pinch roller (7) is disposed on the way to the first paper feed passage (9) for pressing a first paper against the platen (6). The first paper is fed by rotating the platen (6). A second pinch roller (8) is disposed on the way to the second paper feed passage (10), (11) for pressing the second paper against the platen (6). Rotation of the platen (6) here causes the second paper to be fed. In addition, a paper insertion device according to the present invention includes a flat part for placing a paper thereon and a slit (20) for converting the advance direction of a paper from horizontal to vertical one. With said second paper placed on said flat part and inserted into the printer (6), the paper is directed upward after the curved surface of the slit (20) and allowed to enter the second paper feed passage (10), (11) with ease for further advance.
Inventors
- 👤 Hiroshi Kikuchi
- 👤 Shyoichi Watanabe
- 👤 Yukio Ota
- 👤 Yoshinori Koshida
- 👤 Takashi Itaya
- 👤 Kiro Tanuma
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 14:12
CPC Classifications
B; B41; B41J; B41J13/00; B41J13/10; B41J13/103; B41J11/00; B41J11/48; B41J11/54
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
134 words
A printer comprising: a cylindrical platen (6); a driving mechanism for rotating said platen (6); a first paper feed passage (9) for guiding a first paper from the rear of the platen to a printing position through the lower part of the platen (6); a second paper feed passage (10), (11) for guiding a second paper from substantially just under the printing position to the printing position; a first pinch roller (7) disposed on the way to the first paper feed passage (9) for pressing the first paper against the platen (6), a second pinch roller (8) disposed on the way to the second paper feed passage (10), (11) for pressing the second paper against the platen; and a printing head (5) for printing any data on the paper fed to the printing position.
Claim 2
Dependent Claim
134 words
A printer comprising: a cylindrical platen (6); a driving mechanism for rotating said platen (6); a first paper feed passage (9) for guiding a first paper from the rear of the platen to a printing position through the lower part of the platen (6); a second paper feed passage (10), (11) for guiding a second paper from substantially just under the printing position to the printing position; a first pinch roller (7) disposed on the way to the first paper feed passage (9) for pressing the first paper against the platen (6), a second pinch roller (8) disposed on the way to the second paper feed passage (10), (11) for pressing the second paper against the platen; and a printing head (5) for printing any data on the paper fed to the printing position.
Claim 3
Dependent Claim
27 words
A printer according to claim 1, wherein sprocket wheels (25) are mounted on both sides of said platen (6) and rotated in synchronism with the platen (6).
Claim 4
Dependent Claim
33 words
A printer according to claim 2, wherein a guide frame (26) is mounted on the outside of said sprocket wheel (25) for forming said first and second paper feed passages (9), (10), (11).
Claim 5
Dependent Claim
45 words
A paper insertion device comprising: an opening (4) formed on the upper central portion for allowing a paper to pass therethrough; a flat part (16a) for placing the paper thereon; and a curved slit (20) for guiding the paper placed on the flat part (16a).
Claim 6
Dependent Claim
45 words
A paper insertion device comprising: an opening (4) formed on the upper central portion for allowing a paper to pass therethrough; a flat part (16a) for placing the paper thereon; and a curved slit (20) for guiding the paper placed on the flat part (16a).
Claim 7
Dependent Claim
28 words
A paper insertion device according to claim 4, wherein a side guide is mounted on said flat part (16a) so as to be movable widthwise of the paper.
Claim 8
Dependent Claim
61 words
A paper insertion device according to claim 5, wherein said flat part (16a) is constructed with the upper surface of the lower guide plate (16), an inflexing edge being formed on the front end of said side guide plate, the side guide plate being mounted on the front end of said lower guide plate (16) by making use of said edge.
Claim 9
Dependent Claim
216 words
A printer comprising: (a) a printing unit (1) including: a cylindrical platen (6); a driving mechanism for rotating the platen (6); a first paper feed passage (9) for guiding a first paper from the rear of the platen (6) to the printing position through the lower part of the platen; a second paper feed passage (10), (11) for guiding the second paper from the opening (4)formed substantially just under of the printing position to the printing position; a first pinch roller (7) disposed on the way to the first paper feed passage (9) for pressing the first paper against the platen (6); a second pinch roller (8) disposed on the way to the second paper feed passage (10), (11) for pressing the second paper against the platen; and a printing head (5) for printing any character on the paper fed to the printing position, said printer further comprising: (b) a paper insertion unit (2) including: an opening (4) formed at a position facing to said opening (3) of said printing unit (1) for allowing the paper to path therethrough; a flat part for placing the paper thereon; and a curved slit (20) for guiding the paper placed on the flat part to said opening, said printing unit (1) being mounted on said paper insertion unit (2).
Claim 10
Dependent Claim
216 words
A printer comprising: (a) a printing unit (1) including: a cylindrical platen (6); a driving mechanism for rotating the platen (6); a first paper feed passage (9) for guiding a first paper from the rear of the platen (6) to the printing position through the lower part of the platen; a second paper feed passage (10), (11) for guiding the second paper from the opening (4)formed substantially just under of the printing position to the printing position; a first pinch roller (7) disposed on the way to the first paper feed passage (9) for pressing the first paper against the platen (6); a second pinch roller (8) disposed on the way to the second paper feed passage (10), (11) for pressing the second paper against the platen; and a printing head (5) for printing any character on the paper fed to the printing position, said printer further comprising: (b) a paper insertion unit (2) including: an opening (4) formed at a position facing to said opening (3) of said printing unit (1) for allowing the paper to path therethrough; a flat part for placing the paper thereon; and a curved slit (20) for guiding the paper placed on the flat part to said opening, said printing unit (1) being mounted on said paper insertion unit (2).
References Cited (Backward Citations)
No citation records indexed.
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