Document-sheet conveyance device and image forming apparatus

摘要

A document conveyance device includes: a reader reading a document-sheet passing on a contact glass; a white plate being placed opposite to the contact glass; a first conveyance roller and a first driven roller placed upstream of the reader in a sheet conveying direction; a second conveyance roller and a second driven roller placed downstream of the reader in the sheet conveying direction; a holding member configured to hold rotatably the first and second driven roller; a spacer configured to support the holding member and include one or more of support planes different in height; wherein a support plane selected from the one or more support planes in accordance with a thickness of the document-sheet is moved manually to support the holding member, and the white plate is configured to lift upward from the contact glass plate by a forehead of the sheet passing through the contact glass plate.

主权项

1. A document-sheet conveyance device comprising:
a reader configured to read a document-sheet passing through on a contact glass plate; a white plate configured to be placed opposite to the contact glass plate; a first conveyance roller and a first driven roller placed upstream of the reader in a sheet conveying direction, and configured to nip and convey the document-sheet to the reader; a second conveyance roller and a second driven roller placed downstream of the reader in the sheet conveying direction, and configured to nip and convey the document-sheet having been read by the reader to a subsequent stage; a holding member configured to hold rotatably the first and second driven roller; and a spacer configured to support the holding member and include one or more of support planes different in height; wherein a support plane selected from among the one or more support planes of the spacer in accordance with a thickness of the document-sheet is moved manually to support the holding member, and the white plate is configured to lift upward from the contact glass plate by a forehead of the sheet passing through the contact glass plate.