US4509060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet separation system for thermal transfer type recording apparatus
Assignee: Ricoh Co Ltd
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Filing: 1983-08-22
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Granted: 1985-04-02
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Expires: 2003-08-22
Abstract
Abstract In a thermal transfer type recording apparatus, a sheet separation system includes a separator member positioned downstream of a thermal head with respect to a predetermined path which a recording sheet and an ink sheet move in contact with each other. The separator member is selectively controlled to move between an inoperative position above the sheet path and an operative position below the inoperative position and which interferes with the sheet path. In the operative position, the separator member pierces the ink sheet downwardly to push the underlying recording sheet away from the ink sheet.
Inventors
- 👤 Osamu Uozumi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:33
CPC Classifications
G; G01; G01D; G01D15/00; G01D15/24; B; B41; B41J; B41J2/00; B41J2/315; B41J2/32; B41J2/325; G01D15/10
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
174 words
In a thermal transfer type recording apparatus having a thermal head located in a predetermined position where the thermal head faces a predetermined path along which a recording sheet and an ink sheet move in contact with each other, the thermal head selectively heating the ink sheet in response to video information to thermally transfer ink from the ink sheet to the recording sheet in order to produce the video information on the recording sheet, a system for separating the recording sheet from the ink sheet after the thermal transfer of video information, comprising: separator means located in said sheet path downstream of the thermal head to face the ink sheet, said separator means being selectively movable to a position inside the sheet path and a position outside the sheet path; and drive means for driving said separator means to the position inside the sheet path to cause the separator means to pierce the ink sheet, which is in contact with the recording sheet, and urge the recording sheet away from the ink sheet.
Claim 2
Dependent Claim
174 words
In a thermal transfer type recording apparatus having a thermal head located in a predetermined position where the thermal head faces a predetermined path along which a recording sheet and an ink sheet move in contact with each other, the thermal head selectively heating the ink sheet in response to video information to thermally transfer ink from the ink sheet to the recording sheet in order to produce the video information on the recording sheet, a system for separating the recording sheet from the ink sheet after the thermal transfer of video information, comprising: separator means located in said sheet path downstream of the thermal head to face the ink sheet, said separator means being selectively movable to a position inside the sheet path and a position outside the sheet path; and drive means for driving said separator means to the position inside the sheet path to cause the separator means to pierce the ink sheet, which is in contact with the recording sheet, and urge the recording sheet away from the ink sheet.
Claim 3
Dependent Claim
20 words
The system as claimed in claim 1, in which the separator means comprises at least one buzz saw-shaped rotatable member.
Claim 4
Dependent Claim
27 words
The system as claimed in claim 1, in which the separator means comprises at least one disc-shaped rotary member which has teeth at a peripheral edge thereof.
Claim 5
Dependent Claim
19 words
The system as claimed in claim 1, in which the separator means comprises at least one pawl-shaped pivotable member.
Claim 6
Dependent Claim
27 words
The system as claimed in claim 1, in which the drive means comprises an actuator for moving the separator means to the position inside the sheet path.
Claim 7
Dependent Claim
14 words
The system as claimed in claim 5, in which the actuator comprises a solenoid.
Claim 8
Dependent Claim
28 words
The system as claimed in claim 5, in which the drive means further comprises returning means for returning the separator means to the position outside the sheet path.
Claim 9
Dependent Claim
16 words
The system as claimed in claim 7, in which the returning means comprises a tension spring.
Claim 10
Dependent Claim
28 words
The system as claimed in claim 7, in which the drive means further comprises means for transmitting a drive force generated by the actuator to the separator means.
Claim 11
Dependent Claim
17 words
The system as claimed in claim 9, in which the transmitting means comprises a pivotable angled arm.
References Cited (Backward Citations)
US4404568A
Cited
US4454517A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-04-01 | 1988-10-01 | 1989-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-01 | 1992-10-01 | 1993-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-01 | 1996-10-01 | 1997-04-02 | $7700.00 | Window Closed / Lapsed |