Abstract: A printing apparatus includes a printing unit that executes printing based on a print job, and a detector that detects occurrence and removal of an error in the printing apparatus. When removal of an error is detected, the printing unit continues a paused state of the print job paused by the error.

Abstract: A printing apparatus includes a printing unit that executes printing based on a print job, and a detector that detects occurrence and removal of an error in the printing apparatus. When removal of an error is detected, the printing unit continues a paused state of the print job paused by the error.

Abstract: A printing apparatus according to the invention includes a reception section configured to receive a print job; a display section configured to display information relating to the received print job; and a printing execution section configured to execute printing based on the received print job. Further, the display section is further configured to, if a print job in an execution state exists, display information relating to a print job in a first display mode, and if a print job in a pausing state exists, display information relating to a print job in a second display mode which is different from the first display mode.

Abstract: An image forming device has a setting means for setting the copy mode for a document, a detection means for detecting whether or not a document has been placed on a document holder, an assessment means for assessing, when it is detected that a document has been placed on the document holder, whether or not the set copy mode is identical to the default mode, and a warning means for issuing a warning if the assessed mode is not the default. If the set copy mode is not identical to the default mode, by issuing a warning without automatically reverting to the default mode, the copy mode does not revert to the initial state against the user's intent.

Abstract: An image forming device has a setting means for setting the copy mode for a document, a detection means for detecting whether or not a document has been placed on a document holder, an assessment means for assessing, when it is detected that a document has been placed on the document holder, whether or not the set copy mode is identical to the default mode, and a warning means for issuing a warning if the assessed mode is not the default. If the set copy mode is not identical to the default mode, by issuing a warning without automatically reverting to the default mode, the copy mode does not revert to the initial state against the user's intent.

Abstract: An apparatus and a method for contrast adjustment are provided which require a reduced amount of information for the contrast adjustment. A preliminary adjustment factor is first calculated on the basis of a contrast adjustment factor, and then input image data is processed on the basis of these two adjustment factors to provide contrast-adjusted image data. For example, the inclination of a contrast adjustment line is defined by the contrast adjustment factor, and a shift amount (intercept) of the contrast adjustment line is defined by the preliminary adjustment factor which is properly determined in correspondence with the contrast adjustment factor. Thus, not only the contrast of an image but also the density of the overall image can be properly adjusted simply by specifying a single adjustment factor.

Abstract: For maintenance and diagnosis of mobile telephone equipment carried on a vehicle such as a car, ship or airplane, an input/output port of a control unit for effecting desired controlling and processing for individual parts of the mobile telephone equipment on the basis of stored program control is inputted with test mode information in the form of a logic signal supplied manually or a specified dial number signal supplied by dialing a telephone unit so as to switch the mobile telephone equipment to a test mode. Thereafter, a predetermined test instruction and a predetermined additional data are inputted to the input/output port by dialing the telephone unit. The control unit then reads the instruction and data to select and execute a desired, predetermined test program. A result of the execution is indicated on an indicator of the telephone unit for maintenance and diagnosis.

Abstract: The frequency of an input signal is converted to a corresponding digital quantity and the digital quantity is then compared with preset reference values thereby to discriminate the frequency of the input signal.