Image transfer apparatus

An image transfer apparatus which comprises a platen (8) to which an image-forming material is to be attached and a transfer cylinder (1) to which an image receptor is to be attached, and which is for transferring an image formed in a photosensitive layer of an image-forming material to an image receptor by the introduction of the image-forming material and the image receptor into a nip formed by the platen and the transfer cylinder by the rotation of the platen and the transfer cylinder, the apparatus having an image-forming material attaching device comprising a device for holding the top end side of the image receptor to a platen surface along the entire width of the image receptor and a device for holding the bottom end side of the image receptor to a platen surface along the entire width of the image receptor, the device for holding the top end side being a pin bar (13) having pins protruded from an inside of a blanket (10) in a slope portion (12) continued from a partial cut-off portion formed in the platen.

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Claims

2. An image transfer apparatus according to claim 1, wherein the platen has a surface layer portion which is a laminate obtained by stacking a first gage film, an elastic material, a second gage film and a blanket in this order, the pin bar is placed inside the first gage film or the blanket and pins project through a surface layer portion located outside a place where the pin bar are placed.

3. An image transfer apparatus according to claim 1, wherein the image-forming material is formed of a substrate, a photosensitive layer formed on the substrate and a protection film stacked on the photosensitive layer,

at least one means for peeling off the protection film is provided in a place in the platen corresponding to a place near a top end side of the image-forming material, and the means for peeling off the protection film is provided with an adhesive tape in a hole made in the blanket and in a position inside a blanket surface..Iadd.

4. An image transfer apparatus comprising a platen to which an image-forming material is to be attached and a transfer cylinder to which an image receptor is to be attached, and which is for transferring an image formed in a photosensitive layer of an image-forming material to an image receptor into a nip formed by the platen and the transfer cylinder by the rotation of the platen and the transfer cylinder, the image transfer apparatus further comprising:

a platen surface on the platen and a slope portion that slopes inwardly from the platen surface;
a blanket covering the platen surface and the slope portion, the blanket having an outer surface; and
an image-forming material attaching device comprising a device for holding a top end side of the image-forming material to the platen surface, said image-forming material attaching device comprising a pin bar having pins extending through the outer surface of the blanket..Iaddend..Iadd.

5. The image transfer apparatus of claim 4, wherein the pin bar is located between the slope portion and an inner surface of the blanket, and the pins of the pin bar extend completely through the blanket..Iaddend..Iadd.6. The image transfer apparatus of claim 4, wherein the slope portion is continued from a partial cut-off portion formed in the platen..Iaddend..Iadd.7. The image transfer apparatus of claim 4, wherein the platen has a surface layer portion comprising a laminate of a first gage film, an elastic material, a second gage film and a blanket in this order, the pin bar is placed inside the first gage film or the blanket and pins project through a surface layer portion located outside a place where the pin bar is placed..Iaddend..Iadd.8. The image transfer apparatus of claim 4, wherein the image-forming material is formed of a substrate, a photosensitive layer formed on the substrate and a protection film stacked on the photosensitive layer, the image transfer apparatus further comprising at least one means for peeling off the protection film provided in a place in the platen corresponding to a place near a top end side of the image-forming material, the means for peeling off the protection film being provided with an adhesive tape in a hole made in the blanket and in a position inside a blanket surface..Iaddend.

Referenced Cited
U.S. Patent Documents
3456587 July 1969 Hulen
4259904 April 7, 1981 Metje
4298278 November 3, 1981 Katakura et al.
5019860 May 28, 1991 Matsuo et al.
5094164 March 10, 1992 Kowalczyk et al.
5243379 September 7, 1993 Lein
5322014 June 21, 1994 Keller
Foreign Patent Documents
1-168182 June 1989 JPX
3-033750 February 1991 JPX
3157652 May 1991 JPX
3-129354 June 1991 JPX
3-209480 September 1991 JPX
Patent History
Patent number: RE36212
Type: Grant
Filed: Jul 10, 1996
Date of Patent: May 25, 1999
Assignee: Toyo Ink Manufacturing Co., Ltd. (Tokyo)
Inventors: Masaaki Matsuo (Tokyo), Takayuki Kimura (Tokyo)
Primary Examiner: R. L. Moses
Law Firm: Wenderoth,Lind & Ponack, L.L.P.
Application Number: 8/677,870
Classifications
Current U.S. Class: With Cylindrical Or Curved Exposure Station Structure (355/104); 101/4151; Printing Or Copying (492/25)
International Classification: G03B 2722; B41F 128; B41F 2100; B41F 2110;