Abstract: An image forming apparatus, detection method, and image forming system are provided. The apparatus includes a communication interface, a detector, and a notification interface. The communication interface communicates with a wireless tag at a connection position where a sheet conveyance path is formed between the apparatus and a retrofit device equipped with the wireless tag. The detector detects a connection state between the retrofit device and the apparatus based on a communication result of the communication interface. The notification interface provides a notification based on the connection state detected by the detector. The detection method includes detecting a connection state between the retrofit device and the apparatus based on a communication result of the communication interface, and providing a notification based on the connection state detected in the detection. The image forming system includes an apparatus and a retrofit device provided with a wireless tag.

Abstract: According to one embodiment, an image forming apparatus includes a detachable device, an antenna, and a control unit. The detachable device is attachable to and detachable from the own apparatus and includes a wireless tag. The antenna receives a wireless signal from the wireless tag if the detachable device is mounted. The control unit determines that the detachable device is mounted to the own apparatus based on the wireless signal received by the antenna.

Abstract: An image forming apparatus includes: a fixing section for heating an image forming medium; a measuring section for measuring a temperature difference between a temperature of a first part of the fixing section and a temperature of a second part of the fixing section; a heater for heating the fixing section; a reflection section for reflecting radiation from the heater; a power output section for changing a degree of curvature of the reflection section; and a processor for controlling the power output section to change the degree of curvature so as to increase an amount of the radiation reflected by the reflection section and then applied to the first part if the temperature difference is equal to or greater than a first threshold value.

Abstract: A post-processing apparatus according to an embodiment includes an adhesive binding unit that binds a plurality of sheets into a bundle. A controller sets an allowable binding number X of sheets capable of being subject to binding at one time in the adhesive binding apparatus. The controller sets a predetermined remaining number N of sheets. The controller receives a number A of the sheets instructed to be bound in the adhesive binding unit. The controller calculates a remaining number n of sheets, where n=A?X. The controller determines whether n>N or n?N. The adhesive binding unit binds the A number of the sheets into a single bundle when it is determined that n?N.

Abstract: A post-processing apparatus according to an embodiment includes an adhesive binding unit that binds a plurality of sheets into a bundle. A controller sets an allowable binding number X of sheets capable of being subject to binding at one time in the adhesive binding apparatus. The controller sets a predetermined remaining number N of sheets. The controller receives a number A of the sheets instructed to be bound in the adhesive binding unit. The controller calculates a remaining number n of sheets, where n=A?X. The controller determines whether n>N or n?N. The adhesive binding unit binds the A number of the sheets into a single bundle when it is determined that n?N.

Abstract: According to one embodiment of the invention, an image processor generates a median filter circuit and median-filters input image data.