Abstract: Provided is an oil discharging structure for a bearing, including: at least one bearing configured to rotatably support a rotary shaft; a cylindrical bearing housing provided radially outward of the bearing, and configured to accommodate the bearing; an oil recovery chamber provided radially outward of the bearing housing, and configured to recover an lubricating oil supplied to the bearing; and an oil discharge passage penetrating a peripheral wall of the bearing housing in a radial direction, and configured to discharge the lubricating oil from the bearing to the oil recovery chamber. The oil discharge passage is provided with a partition wall that divides the oil discharge passage in a circumferential direction.

Abstract: The present invention relates to an image reading apparatus in which a structure is simple and in which the size of a document can be detected in a short time, wherein the levels of signals, which are outputted from photoelectric elements within a plurality of sensing regions on a light-receiving portion of a line sensor correspond to a pair of nearby regions (#1 and #2, #3 and #4, #5 and #6, and #7 and #8) which hold each edge (e.g., edges 64A, 64B, 64C in FIG. 5) of the plurality of documents of different sizes disposed on a platen glass, are compared to a threshold value, or alternatively, the change in the levels of signals which are outputted from the photoelectric elements within a plurality of sensing regions (e.g., #1, #2 and #3 in FIG. 11) continuously cross each edge of the plurality documents of different sizes is obtained in order to determine the size of the document.