US4469455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic equipment
Assignee: Canon Inc
•
Filing: 1982-08-02
•
Granted: 1984-09-04
•
Expires: 2002-08-02
Abstract
Abstract There is disclosed an electronic equipment comprising character input means capable of inputting a plurality of characters; a first read-only memory for storing information of the characters of said character input means; first print means capable of printing a first set of characters on a print paper in response to an output signal from said first read-only memory; a second read-only memory for storing information of a second set of characters not included in said first set of characters; and selection means for selecting said second read-only memory when second print means capable of printing at least said second set of characters is used in place of said first print means.
Inventors
- 👤 Masaru Makita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:17
CPC Classifications
G; G06; G06K; G06K15/00; G06K15/02; G06K15/06; B; B41; B41J; B41J5/00; B41J5/30; B41J5/44
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
224 words
An electronic printing system that can incorporate any one of a plurality of interchangeable type elements, comprising: printing means; a first type element carrying a plurality of first characters and mountable in said printing means in order to print said first characters; a second type element carrying a plurality of second characters and mountable interchangeably with said first type element in said printing means in order to print said second characters, one portion of each of said plurality of first characters and said plurality of second characters being common and a different portion of each of said plurality of first characters and said plurality of second characters not being common; a first read-only memory containing information relating to said one portion of each of said plurality of first characters and said plurality of second characters which are common and information relating to said different portion of said plurality of first characters; a second read-only memory containing information relating to said different portion of said plurality of second characters not in common with said different portion of said plurality of first characters; and means for selecting said first read-only memory when said first type element is mounted in said printing means and for selecting both said first read-only memory and said second read-only memory when said second type element is mounted in said printing means.
Claim 2
Dependent Claim
224 words
An electronic printing system that can incorporate any one of a plurality of interchangeable type elements, comprising: printing means; a first type element carrying a plurality of first characters and mountable in said printing means in order to print said first characters; a second type element carrying a plurality of second characters and mountable interchangeably with said first type element in said printing means in order to print said second characters, one portion of each of said plurality of first characters and said plurality of second characters being common and a different portion of each of said plurality of first characters and said plurality of second characters not being common; a first read-only memory containing information relating to said one portion of each of said plurality of first characters and said plurality of second characters which are common and information relating to said different portion of said plurality of first characters; a second read-only memory containing information relating to said different portion of said plurality of second characters not in common with said different portion of said plurality of first characters; and means for selecting said first read-only memory when said first type element is mounted in said printing means and for selecting both said first read-only memory and said second read-only memory when said second type element is mounted in said printing means.
Claim 3
Dependent Claim
21 words
An electronic printing system according to claim 1, wherein each of said first and second type elements includes a daisy wheel.
Claim 4
Dependent Claim
22 words
An electronic printing system according to claim 1, further comprising a keyboard for entering characters into said printing means to be printed.
Claim 5
Dependent Claim
26 words
An electronic printing system according to claim 1, wherein said first and second type elements carry characters used respectively in languages of first and second countries.
Claim 6
Dependent Claim
27 words
An electronic printing system according to claim 1, wherein said first and second type elements carry characters in a manner used respectively by first and second manufacturers.
Claim 7
Dependent Claim
31 words
An electronic printing system according to claim 2, wherein the different portion of said second characters is arranged on said second daisy wheel within the range of a specific angular region.
References Cited (Backward Citations)
US4026403A
Cited
US4037208A
Cited
DD134216A1
Cited
US4217055A
Cited
US4281938A
Cited
GB2087115A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-09-04 | 1988-03-05 | 1988-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-04 | 1992-03-05 | 1992-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-04 | 1996-03-05 | 1996-09-04 | $7700.00 | Window Closed / Lapsed |