摘要:
An image reading apparatus includes a lens unit (4) which has a low-resolution lens (1), a high-resolution lens (2), and a first driving unit (3) for driving them, and a second driving unit (5) for driving the lens unit (4). At a first resolution, the low-resolution lens (1) is placed on the optical axis at a first location and the high-resolution lens (2) is placed off the optical axis. At a second resolution higher than the first resolution, the low-resolution lens (1) is placed off the optical axis and the high-resolution lens (2) is placed on the optical axis at a second location. At a third resolution higher than the second resolution, the low-resolution lens (1) is placed off the optical axis and the high-resolution lens (2) is placed on the optical axis at a third location.
摘要:
An automatic paper feeding device for a document inputting device includes a pick roller (20), separating pads (68) each adapted to be brought into contact with the pick roller (20), a first pair of pick springs (58) and a pick spring (60). The first pair of pick springs (58) are disposed upstream the second pick spring (60) when viewed in a direction in which paper is carried. The first pair of pick springs (58) are disposed in areas widthwise outside the separating pads (68) in the axial direction of the roller, and the second pick spring (60) is disposed at the widthwise central position between the separating pads (68). The first and second pick springs (58, 60) are formed from a metal sheet integrally with each other as a spring unit, and the contact force of the first pair of pick springs (58) disposed upstream with the pick roller (20) is made smaller than that of the second pick spring (60) disposed downstream. The separating pads (68) are formed as a pad unit by branching a web (70) of a rubber sheet into a fork shape. The spring unit and the pad unit are supported together by means of a bracket (76) and presser member (78).
摘要:
An image reader is composed of: a read unit 2 provided with a contact member 21 which abuts an original bed 11 of a flat bed unit 1; and a pressing element 30 for causing the read unit 2 and the original bed 11 to press against each other. Also, the image reader is composed of: an apparatus body 50 including a read unit 102 and an original bed 51; and an original cover 42 including a light source 43 and a diffusion plate 45 and attached to the apparatus body 50 in such a manner as to be freely opened and closed. The distance between a translucent original 41 placed on the original bed 51 and the light source 43 is variable according to the thickness of the translucent original 41. Further, in the image reader, a cumulative difference between the movement of the optical unit 102 and the movement of a light source unit 44 is previously read; and, at the time of start of scanning for read, the relative position of the optical unit 102 and the light source unit 44 is shifted in reverse in relation to the direction of the cumulative difference.
摘要:
An automatic paper feeding device for a document inputting device includes a pick roller (20), separating pads (68) each adapted to be brought into contact with the pick roller (20), a first pair of pick springs (58) and a pick spring (60). The first pair of pick springs (58) are disposed upstream the second pick spring (60) when viewed in a direction in which paper is carried. The first pair of pick springs (58) are disposed in areas widthwise outside the separating pads (68) in the axial direction of the roller, and the second pick spring (60) is disposed at the widthwise central position between the separating pads (68). The first and second pick springs (58, 60) are formed from a metal sheet integrally with each other as a spring unit, and the contact force of the first pair of pick springs (58) disposed upstream with the pick roller (20) is made smaller than that of the second pick spring (60) disposed downstream. The separating pads (68) are formed as a pad unit by branching a web (70) of a rubber sheet into a fork shape. The spring unit and the pad unit are supported together by means of a bracket (76) and presser member (78).
摘要:
A paper feed roller (5) is divided into a first roller (5a) and a second roller (5b), and a slit (58) allowing the passage of about 10 to about 20 sheets of paper is defined between the first roller and a gate plate (57) opposing the first roller, so that a sheet of paper fed out via this slit can be supplied between the second roller (5b) and a separation pad (7) in contact with the second roller. A biassing force of a spring for transferring paper is converted by a slide cam sliding in a direction parallel to the paper feed roller, and a paper width detection sensor is assembled in a snap-in structure.