Abstract: A paper cassette holds a stack of print medium therein. A guide member includes first and second members. A medium-supporting plate supports the stack of the paper placed thereon. When the guide member is moved to a predetermined position, the first member abuts the end of the stack of print medium and the second member slides under the edges of the paper placed on the medium-supporting plate. The second member has a tapered forward end portion that allows the second member to smoothly slide under the bottom of the stack of print medium. The guide member is guided in a groove to move to and from the stack of print medium. The second member has a flat portion and the tapered forward end portion extends further away from the flat portion than the bottom of the stack of print medium.

Abstract: An image forming section forms a visible on a charged surface of an image bearing body. A transfer section transfers the visible image onto a recording medium. A fixing unit fixes the visible image on the recording medium. A temperature detecting section outputs a signal indicative of a temperature of the image bearing body. A controller performs a cooling operation in which the temperature of the image bearing body is lowered when the signal is higher than a first predetermined value. When the controller performs the cooling operation, the controller turns on and off the heater of the fixing unit with a first duty cycle. When the controller does not perform the cooling operation, the controller turns on and off the heater of the fixing unit with a second duty cycle higher than the first duty cycle.

Abstract: An image forming apparatus such as a printer has: an image forming unit which forms an electrostatic latent image onto a charged photosensitive drum, deposits toner onto the image, and forms a visible image; a belt arranged so as to run freely in contact with the image forming unit; a temperature sensor which detects a temperature of the belt; and a controller which controls an image forming process on the basis of the detected temperature. Since the belt temperature is detected and the printing process is controlled on the basis of the detected temperature, an increase in temperature of the drum and an increase in temperature in the printer can be suppressed. Thus, the flowability of the toner in each image forming unit does not deteriorates and image quality can be improved.

Abstract: A paper cassette holds a stack of print medium therein. A guide member includes first and second members. A medium-supporting plate supports the stack of the paper placed thereon. When the guide member is moved to a predetermined position, the first member abuts the end of the stack of print medium and the second member slides under the edges of the paper placed on the medium-supporting plate. The second member has a tapered forward end portion that allows the second member to smoothly slide under the bottom of the stack of print medium. The guide member is guided in a groove to move to and from the stack of print medium. The second member has a flat portion and the tapered forward end portion extends further away from the flat portion than the bottom of the stack of print medium.