An image forming apparatus includes an operation panel including a display, a belt through which an image formed thereon is transferred to a sheet, a head configured to form an image on the belt, and a controller configured to control the head to form an image on the belt according to operation settings. The controller is configured to, upon receipt of an instruction to execute a first job, determine whether the job includes forming an image, upon determining that the first job includes forming an image, determine whether a first condition for executing an adjustment operation to adjust the settings is satisfied, upon determining that the first condition is satisfied, control the display to display a screen through which execution of the adjustment operation and a timing thereof can be selected, and execute the first job and/or the adjustment operation based on a selection made through the screen.

There is a need to provide an image generator and an image generation method capable of avoiding wasting a normal printed matter if any in sheets of paper output after an occurrence of waste paper. When paper contains an abnormal image, the paper is detected as waste paper based on a read result from an image read sensor. Detection of the waste paper allows an image generator to perform reprint from a print job for the waste paper. Normal-image paper may be contained in sheets of paper output between detection of the waste paper and the reprint to be performed. In this case, the normal-image paper is used as a normal printed matter and is avoided from being consumed wastefully.

A method of controlling a printing system including a printing apparatus that prints an image on a sheet and a charge eliminating apparatus that performs a charge eliminating process on the sheet on which the image is printed includes measuring an amount of charge on the sheet that has undergone the charge eliminating process performed by the charge eliminating apparatus, and displaying a message prompting a user to change a setting for charge elimination to be performed by the charge eliminating apparatus in a case where the amount of charge on the sheet measured in the measuring does not fall within a predetermined range.

A toner cartridge including a carrier container in which one surface needed for discharge of carriers faces a toner discharge outlet, an image forming apparatus, and a method for controlling the image forming apparatus are provided. The toner cartridge includes a case, a toner container in the case so as to contain the toners; a toner outlet disposed over the case so as to discharge the container toner to the outside; and a carrier container including carriers therein such that one surface of the carrier container, through which the included carriers are discharged, is arranged to face the toner outlet.

A printing apparatus capable of conveying sheets to a sheet processing apparatus and to control the type of a sheet to be used as a cover sheet in a case where a book bound product is generated by switching back sheets each having an image printed, inverting the sheets and folding the inverted sheets, and to notify an error to a user based on the type of a sheet to be used as the cover sheet in a case where printing an image on the cover sheet is designated.

An image forming apparatus having a printer for printing an image on a sheet fed from an external sheet feeding apparatus sets the sheet feeding apparatus as a sheet feed source of the sheet to be used by the printer for printing and in accordance with the setting, makes a notification so as to notice a user to set a feeding parameter in the sheet feeding apparatus.

On a touch-panel display of an image forming apparatus, which is divided to five areas, that is, a system area, a function selection area, a preview area, an action panel area and a task trigger area, pieces of information are displayed. Even if an operational mode is switched, the same or similar information is always displayed in the area arranged at the same position. In the task trigger area, software buttons operated by the user for actually operating the image forming apparatus are displayed.

An image forming apparatus includes: an image forming unit that forms an image on a recording material; an accepting unit that accepts plural adjustment items; and an adjusting unit that sequentially executes adjustment operations concerning the plural adjustment items, based on an adjustment result of the previously executed adjustment item.

An image forming apparatus includes: an image forming unit that forms an image on a recording material; an adjusting unit that sequentially executes adjustment operations corresponding to plural adjustment items which are selected in advance; and a display that displays information indicating that a setting in which an adjustment result is to be reflected is newly generated when the setting is newly generated during execution of the adjustment operations.

A control unit includes a touch panel display capable of presenting preview display of multiple pages of document images in a scrollable manner on the display panel. The touch panel display controller includes: a commanded position detecting controller that detects a commanded position relative to one of document images being a reference in the preview image displayed on a display panel; a preview layout direction switching controller that switches the layout direction in the preview image in accordance with the commanded position; and a scroll direction switching controller that switches the scrolling direction in the preview image in accordance with the detected commanded position.