A liquid discharge apparatus includes a platen to hold a medium; a liquid discharge head to discharge a liquid onto the medium on the platen according to discharge instruction information containing a type of the platen as a designated platen type; an operation panel to display a selection operation screen in which a type of the platen is selectable from the multiple platen types as a selected platen type; and circuitry to: control the operation panel to display the selection operation screen; determine whether the selected platen type matches a first specific platen type; determine whether the designated platen type matches a second specific platen type; control the operation panel to display warning in response to a determination; and control the liquid discharge head to continue to discharge the liquid in response to a determination.

A liquid discharge apparatus includes a platen to hold a medium; a liquid discharge head to discharge a liquid onto the medium on the platen according to discharge instruction information containing a type of the platen as a designated platen type; an operation panel to display a selection operation screen in which a type of the platen is selectable from the multiple platen types as a selected platen type; and circuitry to: control the operation panel to display the selection operation screen; determine whether the selected platen type matches a first specific platen type; determine whether the designated platen type matches a second specific platen type; control the operation panel to display warning in response to a determination; and control the liquid discharge head to continue to discharge the liquid in response to a determination.

An image forming apparatus includes an apparatus main assembly including a panel surface 57 capable of inputting information by displaying a software numerical key portion 58 and a numerical key portion 206 comprised of a plurality of hardware keys, and is provided with a general-purpose numerical key unit 200 capable of inputting information to the apparatus main assembly. The panel surface 57 includes a plurality of software keys corresponding to the numerical key portion 206, and in a case that a “1” key 206a of the numerical key portion 206 is in an ON state, the ON state of the “1” key 206a is displayed by using a “1” key 58a corresponding to the “1” key 206a.

A printing system includes a printing mechanism. The printing mechanism is configured to perform printing. The printing system stores a plurality of print jobs in a storage, and receives selections of two or more print jobs to be executed as two or more target jobs from among the plurality of print jobs stored in the storage. The printing system determines a total fee to be charged for executing the two or more target jobs, and performs a settlement related process related to settlement of the determined total fee. The printing system executes the two or more target jobs to print images by using the printing mechanism in response to completion of settlement of the total fee.

A printing system includes a printing device and a data processing server. The printing device includes a first controller. The data processing server includes a second controller. The first controller acquires a print job from an external device and transmits the print job to the server. The second controller receives the print job and stores the print job in a server memory. The first controller receives designation of the print job subject to printing and transmits a print request for printing the print job subject to printing to the server. After a fee payment approval to approve a payment for execution of the designated print job is transmitted, the second controller transmits to the printing device the print job. The first controller receives the print job and performs printing the print job on a print medium by controlling a printing member.

In an image forming apparatus, in a case that a connected numerical key unit is a dedicated numerical key unit including a numerical key portion for executing, as predetermined processing, numerical value input processing for inputting information on a numerical value and including an operation key portion and a setting key portion for executing, as predetermined processing, another input processing for inputting information on an operation of the image forming apparatus other than the numerical value input processing (step S12; YES), a controller executes the predetermined processing in a case that either of the respective key portions is operated (step S13). On the other hand, in a case that the connected numerical key unit is a general-purpose numerical key unit different from the dedicated numerical key unit (step S1; NO), the controller executes the predetermined processing only in a case that the numerical key portion is operated (step S14).

An image forming apparatus (10) includes a display device (21), a controller (28), a storage device (26), and an operation device (22). The controller (28) executes a job. In the storage device (26), setting information of the job is stored, each time the controller (28) executes the job, in association with date and time of execution of the job, as job history. The controller (28) determines a search period according to date and time of operation performed by a user, and retrieves the job setting information the date and time of execution of which is included in the search period, from the job history stored in the storage device (26). The controller (28) causes the display device (21) to display the job setting information retrieved. The operation device (22) receives an execution instruction of a job to which the job setting information displayed on the display device (21) is applied, from the user. The controller (28) further executes the job according to the execution instruction received by the operation device (22), by applying the job setting information to the job.

An image forming apparatus comprising: an acceptance section; a prediction section which predicts, based on margin information contained in an instruction for execution of an accepted job, an arrangement pattern of a plurality of sheets to be obtained by the execution; a determination section which determines, based on the margin information, whether or not a sum of respective areas of margin regions of the plurality of sheets is greater than a threshold associated with the predicted arrangement pattern; and an adjusted printing section which downscales, in response to a determination that the sum is greater than the threshold, an overall image consisting of a set of partial images intended to be formed and arranged in the predicted arrangement pattern, in such a manner as to fall within one or more sheets arranged in an altered arrangement pattern, and forms the downscaled image on the one or more sheets.

Even from a plurality of small documents, their front-side and back-side images to be formed on a recording paper sheet, with alignment and coincidence of the front-side and back-side images of each document between the front and back sides of the recording paper sheet. In an image forming apparatus, an image processing section detects a front-side image of an original document from a scan area read in a first scan by an image reading section, detects a back-side image of the original document from a scan area read in a second scan, and moves or rotates the front-side image and the back-side image of the original document in terms of a whole image of the scan area so that the front-side image and the back-side image of the original document are brought into alignment and coincidence between a front side and a back side of a recording paper sheet.

To maintain confidentiality by a simile authentication procedure. An image processing device includes an input receiver configured to receive an input of an authentication pattern that is a trajectory of contact coordinates indicating a contact position on an operation unit; and a concatenation image display unit configured to display an image connecting, out of a plurality of predetermined images that are displayed on the operation unit, a part of the predetermined images that includes a first predetermined image and a second predetermined image of the predetermined images that are connected by the trajectory, wherein, prior to a display area of the first predetermined image overlapping the contact coordinates, a display area of the second predetermined image overlaps the contact coordinates.