Abstract:
A developer guide device includes a conveying pipe portion, a light-emitting portion, a light-receiving portion, and a cleaning mechanism. The conveying pipe portion is configured to guide a developer in a predetermined conveyance direction. The light-emitting portion is configured to emit light into an interior of the conveying pipe portion through a light projection window provided in a peripheral wall of the conveying pipe portion. The light-receiving portion is capable of receiving light from the interior of the conveying pipe portion through a light reception window provided in the peripheral wall of the conveying pipe portion. The cleaning mechanism includes a cleaning member configured to receive a predetermined drive force to be displaced thereby to come into contact with inner surfaces of the light projection window and the light reception window to clean the inner surfaces.
Abstract:
A developer guide device includes a conveying pipe portion, a light-emitting portion, a light-receiving portion, and a cleaning mechanism. The conveying pipe portion is configured to guide a developer in a predetermined conveyance direction. The light-emitting portion is configured to emit light into an interior of the conveying pipe portion through a light projection window provided in a peripheral wall of the conveying pipe portion. The light-receiving portion is capable of receiving light from the interior of the conveying pipe portion through a light reception window provided in the peripheral wall of the conveying pipe portion. The cleaning mechanism includes a cleaning member configured to receive a predetermined drive force to be displaced thereby to come into contact with inner surfaces of the light projection window and the light reception window to clean the inner surfaces.
Abstract:
A sheet conveying device of the present disclosure includes: a conveying portion that conveys a sheet in a conveying direction directed toward an image transfer position; a detection portion that detects a conveyance deviation of the sheet conveyed; a sheet correction portion provided on a downstream side of the conveying portion in the conveying direction; and a speed control portion that controls a displacement speed of the sheet correction portion during a displacement process of the sheet correction portion from a sheet acceptance position to a correction completion position. The speed control portion causes the sheet correction portion to be displaced to a setting position set between the sheet acceptance position and the correction completion position at a predetermined first speed, and causes the sheet correction portion to be displaced from the setting position to the correction completion position at a second speed lower than the first speed.