EP0351894A2
Expired / Lapsed
EP
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Image-forming machine
Assignee: Kyocera Mita Industrial Co Ltd
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Filing: 1987-05-27
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Granted: —
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Expires: 2007-05-27
Abstract
Abstract An image-forming machine comprising a main body (204) of the image-forming machine and a process unit (210) to be detachably mounted on the main body (204), said process unit (210) including a process unit frame (216) to be mounted on the main body (204) and an image bearing member (222) mounted on the process unit frame (216) and adapted to be moved in a predetermined direction, wherein an image-forming area (224) on which to form an image exists on a greater portion of the surface of the image bearing member (222) and a non-image-forming area (226) on which substantially no image is to be formed exists in the remainder of said surface, a transfer opening (292) for bringing a sheet material into intimate contact with the image-forming area (224) of the image bearing member (222) is formed in the process unit frame (216), and said machine is constructed such that when an image-forming step is over, the non-image-forming area (226) of the image bearing member (222) is positioned at the transfer opening (292) of the process unit (210).
Inventors
- 👤 Junichi Takamatsu
- 👤 Kazunori Akiyama
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 10:16
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/75; G03G15/754; G03G15/22; G03G15/28; G03G15/283; G03G21/00; G03G21/16; G03G21/1604; G03G21/1623; G03G21/1628; G03G21/1642; G03G21/1647; G03G21/1661; G03G21/1671; G03G2221/00; G03G2221/16; G03G2221/1606; G03G2221/1609; G03G2221/1615; G03G2221/1651; G03G2221/1672; G03G2221/1675; G03G2221/1678; G03G2221/1687
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
177 words
An image-forming machine comprising a main body (204) of the image-forming machine and a process unit (210) to be detachably mounted on the main body (204), said process unit (210) including a process unit frame (216) to be mounted on the main body (204) and an image-bearing member (222) mounted on the process unit frame (216) and adapted to be moved in a predetermined direction, wherein an image-forming area (224) on which to form an image exists on a greater portion of the surface of the image bearing member (222) and a non-image-forming area (226) on which substantially no image is to be formed exists in the remainder of said surface, a transfer opening (292) for bringing a sheet material into intimate contact with the image-forming area (224) of the image bearing member (222) is formed in the process unit frame (216), and said machine is constructed such that when an image-forming step is over, the non-image-forming area (226) of the image bearing member (222) is positioned at the transfer opening (292) of the process unit (210).
Claim 2
Dependent Claim
177 words
An image-forming machine comprising a main body (204) of the image-forming machine and a process unit (210) to be detachably mounted on the main body (204), said process unit (210) including a process unit frame (216) to be mounted on the main body (204) and an image-bearing member (222) mounted on the process unit frame (216) and adapted to be moved in a predetermined direction, wherein an image-forming area (224) on which to form an image exists on a greater portion of the surface of the image bearing member (222) and a non-image-forming area (226) on which substantially no image is to be formed exists in the remainder of said surface, a transfer opening (292) for bringing a sheet material into intimate contact with the image-forming area (224) of the image bearing member (222) is formed in the process unit frame (216), and said machine is constructed such that when an image-forming step is over, the non-image-forming area (226) of the image bearing member (222) is positioned at the transfer opening (292) of the process unit (210).
Claim 3
Dependent Claim
35 words
The image-forming machine of claim 1 wherein a photographic material is disposed on the image-forming area (224) of the image bearing member (222), and substantially no photographic material is disposed on its non-image-forming area (226).
Claim 4
Dependent Claim
93 words
The image-forming machine of claim 1 wherein the machine further comprises clutch means for releasably transmitting a driving force to the image bearing member, control means for actuating and controlling the clutch means and position-detecting means (302) for detecting a specific position of the image bearing member (222); and the control means (308) deenergizes the clutch means (330) on the basis of a signal from the position-detecting means (302) whereby the non-image-forming area (226) of the image bearing member (222) is positioned at the transfer opening (292) of the process unit (216) frame.
Claim 5
Dependent Claim
44 words
The image-forming machine of claim 3 wherein when the position-detecting means detect the specific position of the image bearing member (222), the non-image-forming area (226) of the image bearing member (222) is positioned at the transfer opening (292) of the process unit frame (216).
Claim 6
Dependent Claim
53 words
The image-forming machine of claim 4 wherein the position-detecting means (302) is constructed of a combination of a detection hole (300) provided in the image bearing member (26) and optical detecting means (302) disposed on the process unit frame (20) and having a light emitting element (304) and a light receiving element (306).
Claim 7
Dependent Claim
67 words
The image-forming machine of claim 1 wherein the image bearing member is constructed of an endless belt (222), the image-forming area (224) exists in a greater portion of the surface of the endless belt (222), and the length of the image-forming area in its moving direction (296) is equal to, or slightly larger than, the maximum length of a document of which image is to be formed.
References Cited (Backward Citations)
No citation records indexed.
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