Image forming apparatus with movable member for receiving image transferred from image bearing member
AssigneeCanon Kabushiki Kaisha
InventorsAkihiko Takeuchi, Toshihiko Ochiai, Motoi Kato, Toshiaki Miyashiro, Nobuaki Kabeya, Takehiko Suzuki
Life of this patent
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Abstract
An image forming apparatus comprises an image bearing member for bearing an image, and a movable member which is abutted against the image bearing member and onto which the image on the image bearing member is transferred. The movable member includes a substrate, a sheet-like member, and an elastic layer disposed between the substrate and the sheet-like member and compressed to a predetermined thickness before the movable member is abutted against the image bearing member.
Claims42
An image forming apparatus comprising:
- an image bearing member for bearing an image thereon;
- and
- a movable member abutted against said image bearing member to transfer the image on said image bearing member, said movable member including a substrate, a sheet-like member made of a dielectric film, and an elastic layer disposed between said substrate and said sheet-like member, said elastic layer having a hardness of 40 to 80 degrees measured by Asker F hardness measuring method and a thickness of 3 to 10 mm, and compressed by a tension force of said sheet-like member to a predetermined thickness before said movable member is abutted against said image bearing member.
An image forming apparatus according to claim 3, wherein plural color images are successively superimposed on the transfer material borne on said sheet-like member to obtain a full-color image.
An image forming apparatus comprising:
- an image bearing member for bearing an image thereon;
- and
- a movable member abutted against said image bearing member to transfer the image on said image bearing member, said movable member including a substrate, a sheet-like member, and an elastic layer disposed between said substrate and said sheet-like member and compressed to a predetermined thickness before said movable member is abutted against said image bearing member, and wherein said sheet-like member can bear a transfer material thereon, and the image on said image bearing member is transferred onto the transfer material borne on said sheet-like member, and wherein said sheet-like member includes therein a reinforcing means for increasing a tensile strength of said sheet-like member.
An image forming apparatus comprising:
- an image bearing member for bearing an image thereon;
- and
- a movable member abutted against said image bearing member to transfer the image on said image bearing member, said movable member including a substrate, a sheet-like member, and an elastic layer disposed between said substrate and said sheet-like member and compressed to a predetermined thickness before said movable member is abutted against said image bearing member,
- wherein said movable member is abutted against said image bearing member and comprises position regulating means for regulating positions of said image bearing member and said movable member, and, when a moving speed of said image bearing member is v.sub.1, a moving speed of said position regulating means if v.sub.2 and a moving speed of a surface of said movable member at an abutment area between said image bearing member and said movable member is v.sub.3, the following relation is satisfied:
- v.sub.1 .congruent.v.sub.2 <v.sub.3.
An image forming apparatus comprising:
- an image bearing member for bearing an image thereon;
- and
- a movable member abutted against said image bearing member to transfer the image on said image bearing member, said movable member including a substrate, a sheet-like member, and an elastic layer disposed between said substrate and said sheet-like member;
- wherein said elastic layer is compressed by a tension force of said sheet-like member to a predetermined thickness before said movable member is abutted against said image bearing member.
An image forming apparatus comprising:
- an image bearing member for bearing an image thereon;
- and
- a movable member abutted against said image bearing member to transfer the image on said image bearing member, said movable member including a substrate, a sheet-like member, and an elastic layer disposed between said substrate and said sheet-like member, said elastic layer having a hardness of 40 to 80 degrees measured by Asker F hardness measuring method and a thickness of 3 to 10 mm in an uncompressed state, and compressed by a tension force of said sheet-like member to a predetermined thickness before said movable member is abutted against said image bearing member.
Dependencies are inferred from the claim text.