A toner collection device includes a casing, a fan unit and a filter. The casing has a suction port and an exhaust port. The fan unit is supported by the casing in a swingable manner and generates an air flow from the suction port to the exhaust port inside the casing. The filter is disposed inside the casing and supported by the casing or the fan unit, and collects a toner contained in the air flow flowed into the casing through the suction port. When the fan unit is driven to generate the air flow, a swinging of the fan unit is transmitted to the filter to vibrate the filter.

A toner collection device includes a casing, a fan unit and a filter. The casing has a suction port and an exhaust port. The fan unit is supported by the casing in a swingable manner and generates an air flow from the suction port to the exhaust port inside the casing. The filter is disposed inside the casing and supported by the casing or the fan unit, and collects a toner contained in the air flow flowed into the casing through the suction port. When the fan unit is driven to generate the air flow, a swinging of the fan unit is transmitted to the filter to vibrate the filter.

An image forming apparatus according to the present disclosure includes a skew correction device and a cleaning device. The skew correction device includes first conveying rollers. The first conveying rollers are rotatable about a predetermined rotation fulcrum. The first conveying rollers are, before a sheet, which is skewed, enters a device body, rotated from an initial position, and, when the sheet enters the device body, rotated back to the initial position while nipping and conveying the sheet. The cleaning device includes a toner conveying member that conveys residual toner on an image-carrying member to a predetermined container. Both the first conveying rollers and the toner conveying member operate by consecutively receiving a rotational driving force from a common electric motor.

The present invention relates a toner cartridge used for a laser printer. The toner cartridge comprises: a toner tank for storing fresh toner and a waste toner tank for storing waste toner obtained after development. When the toner cartridge is installed in a laser printer, the toner tank has a toner supplying section at a lower portion in a vertical direction thereof for supplying toner to an external environment. Two inner surfaces of the toner tank, arranged in a transverse direction of the toner tank and parallel with a direction in which the toner cartridge is installed into the laser printer, keep in a plane state at positions higher than the toner supplying section and are parallel with the vertical direction.