US4426653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printing system for facsimile reception apparatus
Assignee: Ricoh Co Ltd
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Filing: 1981-09-21
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Granted: 1984-01-17
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Expires: 2001-09-21
Abstract
Abstract A printing system for a facsimile transceiver includes a first sheet feed means for feeding a recording sheet toward a latent image forming station intermittently at a variable speed in accordance with an input compressed data signal. The sheet is temporarily detained to form a loop in a predetermined position past of the latent image forming station. A second sheet feed means causes the sheet to advance farther toward developing and fixing station sequentially at a constant speed by each predetermined amount in correspondence with a detained amount of the sheet. The developing station is provided with a developing member which is rotated at a constant speed in synchronism with the operation of the second sheet feed means. The fixing station is provided with a flashing light source which is energized in relation with the operation of the second sheet feed means.
Inventors
- 👤 Kenya Komada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:50
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/00567; H04N1/0057; H04N1/00588; H04N1/00599; H04N1/00602; H04N1/00665; H04N1/00673
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
127 words
A facsimile printing system for printing received data in compressed form on a copy sheet, comprising: first sheet feed means for intermittently feeding the copy sheet at a variable speed in accordance with the compressed data; sheet detaining means for temporarily detaining the copy sheet which is fed by the first sheet feed means; and second sheet feed means for feeding the copy sheet detained by the sheet detaining means by a predetermined amount at a predetermined speed after the amount of the copy sheet detained by the sheet detaining means reaches a predetermined value; said predetermined amount being selected such that the sheet detaining means and the second sheet feed means operate on the copy sheet a plurality of times for incrementally feeding the copy sheet.
Claim 2
Dependent Claim
127 words
A facsimile printing system for printing received data in compressed form on a copy sheet, comprising: first sheet feed means for intermittently feeding the copy sheet at a variable speed in accordance with the compressed data; sheet detaining means for temporarily detaining the copy sheet which is fed by the first sheet feed means; and second sheet feed means for feeding the copy sheet detained by the sheet detaining means by a predetermined amount at a predetermined speed after the amount of the copy sheet detained by the sheet detaining means reaches a predetermined value; said predetermined amount being selected such that the sheet detaining means and the second sheet feed means operate on the copy sheet a plurality of times for incrementally feeding the copy sheet.
Claim 3
Dependent Claim
20 words
A facsimile printing system as claimed in claim 1, in which the first sheet feed means comprises a stepping means.
Claim 4
Dependent Claim
31 words
A facsimile printing system as claimed in claim 1, in which the sheet detaining means detains the copy sheet in a loop form, the detaining means comprising photoelectric loop control means.
Claim 5
Dependent Claim
26 words
A facsimile printing system as claimed in claim 3, in which the photoelectric loop control means comprises a loop forming means and a loop detecting means.
Claim 6
Dependent Claim
35 words
A facsimile printing system as claimed in claim 4, in which the loop forming means comprises sheet feed rollers and the loop detecting means comprises a photosensor for detecting the loop of the copy sheet.
Claim 7
Dependent Claim
49 words
A facsimile printing system as claimed in claim 5, in which the photoelectric loop control means further comprises a drive control means for drivably controlling the sheet feed rollers to feed the copy sheet detained by the detaining means when the photosensor senses the loop of the copy sheet.
Claim 8
Dependent Claim
62 words
A facsimile printing system as claimed in claim 6, in which the drive control means comprises an AC motor which is in drivable connection with the sheet feed rollers and a clutch means intervened between the AC motor and sheet feed rollers to selectively establish a torque transmission path therebetween in accordance with a detection of the loop of the copy sheet.
Claim 9
Dependent Claim
33 words
A facsimile printing system as claimed in claim 1, further comprising imaging means for forming an electrostatic image of the received data on the copy sheet fed by the first sheet feed means.
Claim 10
Dependent Claim
51 words
A facsimile printing system as claimed in claim 8, further comprising a developing means for developing the electrostatic image on the copy sheet to produce a toner image thereof for a predetermined period of time while the copy sheet is fed by the second sheet feed means at the predetermined speed.
Claim 11
Dependent Claim
22 words
A facsimile printing system as claimed in claim 9, further comprising timer means which is activated during the predetermined period of time.
Claim 12
Dependent Claim
50 words
A facsimile printing system as claimed in claim 1, further comprising developing means and fixing means through which the copy sheet is fed by the second sheet feed means, the fixing means having a operative length in the sheet feed direction which is an integral multiple of said predetermined amount.
Claim 13
Dependent Claim
16 words
A facsimile printing system as claimed in claim 11, in which said integral multiple is one.
Claim 14
Dependent Claim
20 words
A facsimile printing system as claimed in claim 11, in which the fixing means comprises a flash type heat source.
Claim 15
Dependent Claim
23 words
A facsimile printing system as claimed in claim 7, in which the clutch means comprises a one-turn clutch which determines said predetermined amount.
References Cited (Backward Citations)
US4115817A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-01-16 | 1987-07-18 | 1988-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-16 | 1991-07-18 | 1992-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-16 | 1995-07-18 | 1996-01-17 | $7700.00 | Window Closed / Lapsed |