Abstract: An inspecting apparatus includes a measuring device and a processing unit. The measuring device is provided with a vibration detector for detecting the vibration of a steam trap when a valve thereof is closed. The processing unit is provided with a performance deterioration value calculator for converting the detected vibration level of the steam trap into a sealing performance deterioration value representing a deterioration level of the sealing performance of the valve of the steam trap under a reference steam pressure value using a working steam pressure value, a display for displaying a rank of the sealing performance obtained based on the sealing performance deterioration value, and a trap list storage for storing the sealing performance deterioration value and the rank of the sealing performance as well as ID information of the steam trap. The steam trap can be more precisely inspected.

Abstract: The number of lines per page and the maximum number of characters per line defined by image data supplied from a host apparatus or the like are determined. On the basis of the number of lines per page and the maximum number of characters per line, it is determined whether image data will be formed in a non-printing area of a cut sheet of paper. If it is determined that the image data is formed in the non-printing area of the cut sheet of paper, the line and character pitches of the image data are changed into smaller pitches so that the image is printed in an printing area of the cut sheet of paper. The image data is printed in the printing area of the cut sheet of paper in accordance with the changed line and character pitches.

Abstract: An image forming apparatus as provided which receives image data supplied from a host unit and forms an image on an image forming medium. Even if a desired image forming medium is not present, the received image data is edited to allow a desired image to be formed on an arbitrary image forming medium as a substitute for the desired image forming medium.

Abstract: An image forming apparatus is provided which forms an image on a sheet on the basis of image data selectively received from a plurality of host apparatuses. The image forming apparatus comprises a plurality of input/output ports, connected to the respective host apparatuses for receiving image data from the host apparatuses, keys for setting priority orders of the plurality of input/output ports, memories for storing the priority orders set by the keys, and a CPU for selecting one of the input/output ports in accordance with the priority orders stored in the memories, if image data is received simultaneously from two or more of the host apparatuses, a memory and photosensitive assembly for receiving image data from the input/output ports selected by the keys and for forming an image corresponding to the received image data.