EP0138444A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Image printing apparatus
Assignee: Toshiba Corp
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Filing: 1984-09-25
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Granted: —
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Expires: 2004-09-25
Abstract
Abstract A manually movable printing device which includes a printing head (11) a guide member (15) which controls the direction of movement of the head, and distance measuring device. Data transfer to the printing head is controlled at a rate dependent on the speed which the head is moved across the recording surface. Thus, the device is insensitive to variations in operating speed.
Inventors
- 👤 Akio C/O Patent Division Toshiba Corp. Mori
- 👤 Takeshi C/O Patent Division Toshiba Corp. Aikawa
- 👤 Mitsuo C/O Patent Division Toshiba Corp. Saito
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 10:57
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/315; B41J2/32; B41J3/00; B41J3/36
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
106 words
A hand operated printing device which can be manually moved across a recording surface, having a print head (11) for printing an image onto the said recording surface; characterised by handle means (14, 27) for moving said device across said recording surface; guide means (15, 22, 25a, 25b) coupled to said print head for guiding said print head across said recording surface; and control means (17, 13, 18) coupled to said print head for controlling the rate at which said data is transferred to the print head, said rate being a function of the rate at which said print head is moved across said recording surface.
Claim 2
Dependent Claim
106 words
A hand operated printing device which can be manually moved across a recording surface, having a print head (11) for printing an image onto the said recording surface; characterised by handle means (14, 27) for moving said device across said recording surface; guide means (15, 22, 25a, 25b) coupled to said print head for guiding said print head across said recording surface; and control means (17, 13, 18) coupled to said print head for controlling the rate at which said data is transferred to the print head, said rate being a function of the rate at which said print head is moved across said recording surface.
Claim 3
Dependent Claim
70 words
A hand operated printing device according to claim 1 wherein said control means includes: distance measuring means (17) for measuring increments of distance as said device is moved across said recording surface and producing a distance signal for each of said increments; and time measuring means for measuring the time interval between said distance signals, said time signal being used to control said transfer of data to said print head.
Claim 4
Dependent Claim
37 words
A hand operated printing device according to claim 1, wherein said control means is arranged to prevent the transfer of data to said print head when the speed of said transducer is outside of a predetermined range.
Claim 5
Dependent Claim
44 words
A hand operated printing device according to claim 2, wherein said time measuring means includes: clock pulse generating means for generating clock pulses; and counting means for counting said clock pulses between the intervals of said distance signals generated by said distance measuring means.
Claim 6
Dependent Claim
38 words
A hand operated printing device according to claim 2, wherein said distance measuring means includes: speed indicating means for indicating when said print head is being moved across said recording surface at a speed within a predetermined range.
Claim 7
Dependent Claim
62 words
A hand operated printing device according to claim 5, wherein said speed indicating means includes at least two different coloured light emitting devices, one of said light emitting devices indicating when the speed of said print head is below said predetermined range and another of said light emitting devices indicating when the speed of said print head is above said predetermined range.
Claim 8
Dependent Claim
25 words
A hand operated printing device according to claim 1 wherein said guide means includes a pair of rollers with said print head being disposed therebetween.
References Cited (Backward Citations)
No citation records indexed.
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