US4741634A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printer with variable head displacement
Assignee: Canon Inc
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Filing: 1986-06-09
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Granted: 1988-05-03
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Expires: 2006-06-09
Abstract
Abstract This invention provides a printer capable of regulating the displacement of printing head according to the kind of characters to be printed. The printer has a printing head, an identifying device for identifying the print size of the printing head, and a drive mechanism for driving the printing head according to the print size identified by the identifying device.
Inventors
- 👤 Mineo Nozaki
- 👤 Osamu Asakura
- 👤 Masasumi Nagashima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:40
CPC Classifications
B; B41; B41J; B41J25/00; B41J25/34
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
144 words
A printer comprising: a carriage; a printing head including conducting means and a plurality of print elements, said conducting means having a plurality of conductors arranged substantially in a plane, and a common connector portion for connecting said conductors to the printer, a first portion of said plurality of conductors modifying a signal applied to said first portion in accordance with a print size printed by said printing head, another portion of said plurality of conductors conveying a drive signal for driving said plurality of print elements; means for supplying the signal to said printing head; discriminating means for identifying the print size in accordance with the signal modified by said conducting means; and drive means, responsive to said discriminating means, for driving said printing head at a rate appropriate to the print size represented by the print signal identified by said discriminating means.
Claim 2
Dependent Claim
144 words
A printer comprising: a carriage; a printing head including conducting means and a plurality of print elements, said conducting means having a plurality of conductors arranged substantially in a plane, and a common connector portion for connecting said conductors to the printer, a first portion of said plurality of conductors modifying a signal applied to said first portion in accordance with a print size printed by said printing head, another portion of said plurality of conductors conveying a drive signal for driving said plurality of print elements; means for supplying the signal to said printing head; discriminating means for identifying the print size in accordance with the signal modified by said conducting means; and drive means, responsive to said discriminating means, for driving said printing head at a rate appropriate to the print size represented by the print signal identified by said discriminating means.
Claim 3
Dependent Claim
21 words
A printer according to claim 1, wherein said drive means includes control means for controlling the displacement of said printing head.
Claim 4
Dependent Claim
15 words
A printer according to claim 1, further comprising moving means for displacing said printing head.
Claim 5
Dependent Claim
30 words
A printer according to claim 2, further comprising position signal generating means for generating two position signals in response to the displacement by said moving means of said printing head.
Claim 6
Dependent Claim
46 words
A printer according to claim 4, further comprising means for selecting either one of the two position signals generated by said position signal generating means in response to the discrimination by said discriminating means so as to apply the two position signals to said drive means.
Claim 7
Dependent Claim
18 words
A printer according to claim 1, further comprising latch means for storing information identified by said discriminating means.
Claim 8
Dependent Claim
18 words
A printer according to claim 1, further comprising connector means for connecting said carriage to said printing head.
Claim 9
Dependent Claim
28 words
A printer according to claim 1, further comprising connector means connected to said discriminating means and said drive means, and detachably connected to said plurality of conducting means.
Claim 10
Dependent Claim
102 words
A printing head comprising: a plurality of print elements; indicating means for indicating a print size to be printed by said print elements, said indicating means being formed on a printed circuit board and including a predetermined pattern of conductors, said pattern being selectively modified in accordance with the print size; and conducting means for conveying a size signal indicated by said indicating means and for conveying a drive signal for driving said print elements, said conducting means being formed on the printed circuit board with said indicating means and being electrically connected to said print elements and to said indicating means.
Claim 11
Dependent Claim
102 words
A printing head comprising: a plurality of print elements; indicating means for indicating a print size to be printed by said print elements, said indicating means being formed on a printed circuit board and including a predetermined pattern of conductors, said pattern being selectively modified in accordance with the print size; and conducting means for conveying a size signal indicated by said indicating means and for conveying a drive signal for driving said print elements, said conducting means being formed on the printed circuit board with said indicating means and being electrically connected to said print elements and to said indicating means.
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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) | 1991-05-03 | 1991-11-02 | 1992-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-05-03 | 1995-11-02 | 1996-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-05-03 | 1999-11-02 | 2000-05-03 | $7700.00 | Window Closed / Lapsed |