US4428690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal recording print head
Assignee: Fujifilm Business Innovation Corp
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Filing: 1982-05-21
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Granted: 1984-01-31
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Expires: 2002-05-21
Abstract
Abstract A thermal recording print head in a thermal recording system using a heat generating resistor unit made up of elements arranged adjacent to one another. The heat generating elements are arranged in a plurality of lines in an auxiliary scanning direction.
Inventors
- 👤 Tsunemasa Mita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:22
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/315; B41J2/32; B41J2/345
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
126 words
In a thermal recording print head for use in a thermal recording system having means for controlling the heating of said print head, said print head arranged in a recording medium feeding path defining a main scanning direction and an auxiliary scanning direction for printing, comprising: a heat generating resistor unit having a plurality of heat generating elements arranged adjacent to each other and forming a line, and a plurality of such lines of said heat generating elements arrayed orthogonal with the auxiliary scanning direction of said heat with the elements of one line aligned with the elements of a second line, wherein printing of two lines orthogonal with said auxiliary scanning direction occurs for each advance of said recording medium in said auxiliary scanning direction.
Claim 2
Dependent Claim
126 words
In a thermal recording print head for use in a thermal recording system having means for controlling the heating of said print head, said print head arranged in a recording medium feeding path defining a main scanning direction and an auxiliary scanning direction for printing, comprising: a heat generating resistor unit having a plurality of heat generating elements arranged adjacent to each other and forming a line, and a plurality of such lines of said heat generating elements arrayed orthogonal with the auxiliary scanning direction of said heat with the elements of one line aligned with the elements of a second line, wherein printing of two lines orthogonal with said auxiliary scanning direction occurs for each advance of said recording medium in said auxiliary scanning direction.
Claim 3
Dependent Claim
33 words
A thermal recording print head of claim 1, further comprising an individual signal line for each resistor and a common signal line coupled to individual heat generating elements in at least two lines.
Claim 4
Dependent Claim
26 words
A thermal recording print head of claim 2, wherein said common signal line is positioned between two adjacent individual signal lines for each line of elements.
Claim 5
Dependent Claim
53 words
A thermal recording print head of claim 1, further comprising said elements arranged as segments in a spaced relationship with even number segments forming one line and odd number segments forming a second line and a common signal line positioned between said lines and coupling all segments of said first and second lines.
Claim 6
Dependent Claim
24 words
The thermal recording print head of claim 4, wherein the spacing between segments corresponds with the auxiliary scanning density of said thermal recording system.
References Cited (Backward Citations)
US4032925A
Cited
US4141018A
Cited
US4252991A
Cited
FR2420272B1
Cited
US4074109A
Cited
US4251822A
Cited
US4250375A
Cited
US4203119A
Cited
US4327365A
Cited
US4322733A
Cited
US4374385A
Cited
US4366489A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-01-30 | 1987-08-01 | 1988-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-30 | 1991-08-01 | 1992-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-30 | 1995-08-01 | 1996-01-31 | $7700.00 | Window Closed / Lapsed |