EP0050481A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Multi-colour image recording device
Assignee: Fujifilm Business Innovation Corp
•
Filing: 1981-10-15
•
Granted: —
•
Expires: 2001-10-15
Abstract
Abstract A multi-colour image recording device includes a plurality of recording stations each including a thermal head (114,124,134) and guide means for guiding an ink donor sheet (112,122,132) between the thermal head and the path of the recording paper (140). The heads and ink donor sheets all lie on one side of the path of the paper (140) and pressure applying means (111,121,131) on the other side of the path is provided for pressing the recording paper and the donor sheets against the thermal heads. The heads are supplied with electrical signals whereby portions of each head are selectively heated to transfer images to the paper (140).
Inventors
- 👤 Moriguchi C/O Fuji Xerox Company Limited Fjio
- 👤 Moriguchi C/O Fuji Xerox Company Limited Haruhiko
- 👤 Ohmori C/O Fuji Xerox Company Limited Takashi
- 👤 Kurata C/O Fuji Xerox Company Limited Masami
- 👤 Murayama C/O Fuji Xerox Company Limited Tomio
- 👤 Makino C/O Fuji Xerox Company Limited Katsuo
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 06:25
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/46; H04N1/50; H04N1/506
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
116 words
A multi-colour image recording device wherein ink donor sheets coated with heat fusible or heat sublimating solid ink and thermal heads for selectively heating said ink donor sheets in accordance with picture element signals so as thereby to transfer said fusible or sublimating ink to recording paper sheets transported in a predetermined path are disposed in a plurality of sets on one side of said path, each set corresponding to a respective one of a plurality of recording colours, and wherein said recording paper sheets are transported while successively being brought into contact under pressure with each of said thermal heads with said ink donor sheets interposed between said recording paper sheets and said thermal heads.
Claim 2
Dependent Claim
116 words
A multi-colour image recording device wherein ink donor sheets coated with heat fusible or heat sublimating solid ink and thermal heads for selectively heating said ink donor sheets in accordance with picture element signals so as thereby to transfer said fusible or sublimating ink to recording paper sheets transported in a predetermined path are disposed in a plurality of sets on one side of said path, each set corresponding to a respective one of a plurality of recording colours, and wherein said recording paper sheets are transported while successively being brought into contact under pressure with each of said thermal heads with said ink donor sheets interposed between said recording paper sheets and said thermal heads.
Claim 3
Dependent Claim
53 words
A device as claimed in Claim 1, comprising pressure roll means arranged on the opposite side of the path of the recording paper sheets from the ink donor sheets and the thermal heads whereby the ink donor sheets and the recording paper sheets are pinched between the thermal heads and the pressure rolls.
Claim 4
Dependent Claim
40 words
A device as claimed in Claim 2, in which there are a plurality of separate pressure rolls associated respectively with the individual thermal heads, means being provided for guiding the record sheets along the aforesaid path between individual thermal heads.
Claim 5
Dependent Claim
21 words
A device as claimed in Claim 3 in which said guiding means comprises an endless belt extending around said pressure rolls.
Claim 6
Dependent Claim
42 words
A device as claimed in Claim 3, in which said guiding means is constituted by the ink donor sheets which are each arranged to follow a path adjacent the recording paper path at a position adjacent the next succeeding the thermal head.
Claim 7
Dependent Claim
44 words
A device as claimed in Claim 5, in which, at said position adjacent the next succeeding thermal head the path of the ink donor sheet is made to bend through a curve of radius too small to be followed by the recording paper sheets.
Claim 8
Dependent Claim
42 words
A device as claimed in Claim 6, in which a guide member is provided between said position and the next succeeding thermal head to guide the recording paper towards the pinch between the next succeeding thermal head and its associated pressure roll,
Claim 9
Dependent Claim
29 words
A device as claimed in Claim 2 in which there is a single pressure roll with the thermal heads arranged at circumferentially spaced positions around such single pressure roll.
Claim 10
Dependent Claim
89 words
A device as claimed in Claim 1, in which a thermal transfer marking device is associated with said first set and operates to produce on each sheet of recording paper as it passes said first set a series of spaced marks at predetermined time intervals, the or each succeeding set incorporating a reading device arranged to read said marks so as to control the synchronisation of the operation of the thermal heads of the or each succeeding set with the passage of the recording paper sheet past such head.
Claim 11
Dependent Claim
35 words
A multi-colour copying machine including a multi-colour image recording device as claimed in any preceding claim in combination with a scanner unit for scanning an original document and operating to produce said picture element signals.
Claim 12
Dependent Claim
42 words
A machine as claimed in Claim 10 comprising memory means for storing the picture element signals and control circuit means for'providing picture element signals to each thermal head in sychronism with the passage of a recording paper sheet past each thermal head.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.