EP0145025A2
Expired / Lapsed
EP
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Multihead serial printer
Assignee: Oki Electric Industry Co Ltd
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Filing: 1984-12-14
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Granted: —
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Expires: 2004-12-14
Abstract
Abstract Print heads (103a, 103b) are mounted on carriages (111a, 111b) respectively, which are independently movable by respective motors (110a, 110b) for enabling the print heads (103a, 103b) to effect uniform printing. A shift mechanism (105a) is mounted on at least one of the carriages (111a) for moving the print head (103a) in a paper-feeding direction along the surface of a platen (1).
Inventors
- 👤 Isobe C/O Oki Electric Industry Co. Ltd. Minoru
- 👤 Jiro C/O Oki Electric Industry Co. Ltd. Tanuma
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 09:08
CPC Classifications
B; B41; B41J; B41J3/00; B41J3/54
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
64 words
A multihead serial printer having a plurality of print heads (5a, 5b) arranged along the character-spacing or horizontal direction of a platen (1), characterized in that said print heads (5a, 5b) are mounted respectively on a plurality of movable carriages (3a,3b) and a plurality of motors (11a, 11b) is operatively coupled with said carriages (3a, 3b) respectively, for independently moving said carriages (3a, 3b).
Claim 2
Dependent Claim
64 words
A multihead serial printer having a plurality of print heads (5a, 5b) arranged along the character-spacing or horizontal direction of a platen (1), characterized in that said print heads (5a, 5b) are mounted respectively on a plurality of movable carriages (3a,3b) and a plurality of motors (11a, 11b) is operatively coupled with said carriages (3a, 3b) respectively, for independently moving said carriages (3a, 3b).
Claim 3
Dependent Claim
32 words
A multihead serial printer according to claim 1, characterized in that said motors (11a, 11b) are mounted on said carriages (3a, 3b) respectively for enabling said carriages (3a, 3b) to be self-propelled.
Claim 4
Dependent Claim
68 words
A multihead serial printer according to claims 1 or 2, characterized in that a shift mechanism (105 a, 105b) is mounted on at least one of said carriages (111a, 111b) and a plurality of motors (109a, 109b) is operatively coupled with said shift mechanism (105a, 105b) respectively, for independently moving said print heads (103a, 103b) in a paper-feeding or vertical direction along the surface of the platen (1).
Claim 5
Dependent Claim
45 words
A multihead serial printer according to claim 3, characterized in that at least one of said print heads (103a, 103b) is movable along the surface of the platen (1) in the column and/or in the line direction, independently of the other print heads (103a, 103b).
Claim 6
Dependent Claim
45 words
A multihead serial printer according to claim 4, characterized in that the movement of each print head (103a, 103b) is controllable by two motors (109a, 109b; 110a, 110b), one for the horizontal and one for the line-feeding direction along the surface of the platen (1).
Claim 7
Dependent Claim
26 words
A multihead serial printer according to claims 3 to 5, characterized in that at least one of said print heads (206) comprises a pen head (208).
Claim 8
Dependent Claim
39 words
A multihead serial printer according to claim 6, characterized in that the pen head (206) comprises a plurality of pens (211), being arranged along the horizontal direction of the platen (1) and being supported by a guide means (212).
References Cited (Backward Citations)
No citation records indexed.
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