Abstract: Disclosed is an image forming apparatus that includes a recording medium feeding unit that feeds a recording medium to a predetermined conveyance path; a conveyance unit that conveys the recording medium fed from the recording medium feeding unit on the conveyance path; a conveyance status detection unit that detects a conveyance status of the recording medium placed on the conveyance path; a control unit that controls operations of the recording medium feeding unit, the conveyance unit, and the conveyance status detection unit; and an accommodation unit that accommodates the recording medium. The control unit controls the feeding of the recording medium with the recording medium feeding unit and the conveyance of the recording medium with the conveyance unit based on a detection result of the conveyance status detection unit, thereby discharging the recording medium present in the image forming apparatus to the accommodation unit.

Abstract: A packing material for distribution is formed in such a shape that, when the packing material attached in a deck unit fails to be removed, a control unit determines that no sheet is present on a tray based on detection signals from a sheet surface detection sensor and a sheet presence detection sensor. When a user checks the deck unit when the absence of sheets is displayed, the user can notice a failure to remove the packing material, thus preventing damage to a sheet feeding apparatus caused by the failure to remove the packing material for distribution.

Abstract: Methods and systems for facilitating remote access and customization of internally generated printing node status reports. In some embodiments, the methods and systems advantageously facilitate remote access and customization of internally generated printing node status reports by adapting preexisting features that generate local hard copies of printing node status reports in response to locally initiated commands. Such adaptation enables a printing node to receive, process and respond to remotely initiated requests for printing node status reports in a manner that permits remote customization of the style of printing node status reports.

Abstract: Disclosed is an image forming apparatus including an image forming section to perform image formation based on a plurality of jobs, including: a control section to allow a display section to display switching information showing that a paper feeding tray to be used in performing the job is to be switched, the switching information displayed before the plurality of jobs are performed by the image forming section.

Abstract: An image forming apparatus comprises a sheet tray to store sheets to form an image thereon; a detecting section to detect a capacity of empty space of each of the sheet tray; and a sheet managing section to compare the capacity of empty space of the sheet tray with a capacity of sheets of one or plural bundles of sheets as a unit of supply to be stored in the sheet tray, wherein in the case that the capacity of empty space of the sheet tray is equal to or larger than the capacity of sheets of one or plural bundles of sheets, the sheet managing section notifies that it is possible to supply sheets by the one or plural bundle of sheets as a unit of supply to the sheet tray.

Abstract: An image forming apparatus for forming an image according to a specified printing time, including: an image forming condition setting unit for setting an image forming condition including an information related to the specified printing time and an information related to recording material; a control unit adapted to calculate a recording material acquisition startup time for starting to acquire a recording material based on the image forming condition set by the image forming condition setting unit, and adapted to issue a warning related to a replenishment of the recording material, and/or to inhibit formation of image, after the recording material acquisition startup time, in the case where there is no recording material specified under the image forming condition or in the case where the recording material is insufficient.

Abstract: An image forming apparatus may include a printer to fix images on paper sheets that travel along a first paper path and a second paper path, and first and second doors that may be open to uncover the first and second paper paths, respectively. First and second sensors may detect if the respective doors are open and first and second jam detectors may detect jams along the respective paper paths. A memory may store first and second jam removal guidance for the jams along the respective paper paths. A controller may cause a display to switch from displaying the first jam removal guidance read from the memory to displaying the second jam removal guidance read from the memory upon the second door sensor detecting the second door is open.

Abstract: An imaging system that includes a sheet media stack over a recording unit. Image data is generated in response to radiation received from a field of view encompassing sheet media edges of individual media within the sheet media stack. Edges of individual media are detected within the image data.

Abstract: A disclosed image forming apparatus includes a transport unit configured to transport a recording medium along a transport path, a transport status detection unit disposed on the transport path and configured to detect a transport status of the recording medium, a control unit configured to control transport by the transport unit according to the transport status of the recording medium detected by the transport status detection unit, and a container unit configured to hold the recording medium. If the transport status detection unit detects a delay in transporting the recording medium, the control unit controls the transport unit to discharge the recording medium or another recording medium in the transport path into the container unit.

Abstract: In one embodiment, data is discerned, the data indicative of a first quantity of unused media contained within a roll. Prior to a plot being printed on the roll, a second quantity of unused media expected to be in the roll after the plot is printed is discerned using the data. Printing of a machine-readable marking on the roll, along with the plot, is caused, the marking being indicative of the second quantity.

Abstract: An image forming apparatus may include an image forming device to form and fix an image on a paper, a paper conveyer to convey the paper from a sheet feeder through the image forming device to a finisher, at least one door configured to uncover and cover a part of the paper conveyer, a jam detector to detect whether a jam occurs in the paper conveyer, at least one door sensor to detect whether each door is open or closed, a display, a memory, and a controller to control the jam detector, the door sensor and the display. The controller may be configured to execute control to display a jam detection result detected by the jam detector and jam removal guidance, corresponding to the jam detector which detects the jam occurring in the paper conveyer, based on the information of preset display orders of the jam removal guidance.

Abstract: A method and apparatus for selecting media trays for hole punching in an image production device in an image production device is disclosed. The method may include receiving a request to print a print job, the print job having a required number of media sheets, determining if print job requires hole punching, wherein if it is determined that print job requires hole punching, determining the media sheet capacity of one or more media trays, determining if the capacity of one of the one or more media trays is greater or equal to the number of media sheets required for the print job, wherein if it is determined that the capacity of one of the one or more media trays is greater or equal to the number of media sheets required for the print job, selecting one of the one or more media trays having the required number of media sheets for the print job, and printing the print job with media from the selected media tray.

Abstract: A continuous paper feed device includes a paper feed unit that feeds continuous paper to an image output part; a slack forming unit that forms a slack of continuous paper on a paper transport path; a detecting unit that detects a remaining amount of continuous paper; a cutting unit that cuts the continuous paper; and a cutting controller that controls the cutting unit to cut the continuous paper during a time taken to tighten the slack formed, when paper more than a predefined value which has been set beforehand is transported, and if the remaining amount of paper detected by the detecting unit is more than a threshold value, the cutting controller performing control operation including reducing a length of a slack formed by the slack forming unit and transporting the continuous paper, followed by forming a slack again by the slack forming unit.

Abstract: An image forming apparatus and a printing medium feeding unit thereof are disclosed. The image forming apparatus includes a main body, a cassette removably mounted in the main body to load a printing medium therein, and a sensing unit provided in the main body to sense whether the cassette is mounted in the main body and whether the printing medium is in the cassette. The sensing unit includes a first actuator mounted in the main body to sense whether the printing medium is in the cassette, a second actuator mounted in the main body to sense whether the cassette is mounted in the main body, and a sensor having a sensing part to sense operation of the first actuator and the second actuator. Accordingly, the image forming apparatus can sense whether the cassette is properly mounted in the main body and whether the printing medium is in the cassette, with a simple constitution while minimizing the number of sensors.

Abstract: An image forming apparatus used for displaying print media information according to print data and selecting designated print media to print from kinds of print media, comprises a receiving section for receiving print data, a judging section for judging whether first print media has been designated by the print media information, a print media setting input section for being inputted print media setup information so as to set second print media when getting a judging result that first print media having being designated, a controller for forming image on the second print media indicated by the setup information of the print media according to the above print data when the described print media setting input section is inputted the print media setup information, and an informing section for urging to supply the second print media once detecting lack of the second print media during image forming of the controller.

Abstract: A recording medium conveying device including a body portion capable of being mounted to and removed from a body of an apparatus, the body portion being provided with a conveying roller; a knob member disposed at a side at which the body portion is removed, the knob member allowing manual rotation of the conveying roller; and a handle member for mounting the body portion to and removing the body portion from the body of the apparatus. The handle member is rotatably supported so as to move between a first position and a second position, The knob member is connected to a rotating shaft of the conveying roller so as to move along a direction in which the body portion is removed. The handle member moves between the first position and the second position in response to an accommodation operation and a draw-out operation of the knob member.

Abstract: An imaging system that includes a sheet media stack over a recording unit is provided. The imaging system generates image data in response to radiation received from a field of view encompassing sheet media edges of individual media within the sheet media stack. The imaging system detects edges of individual media within the image data.

Abstract: An image forming apparatus includes a sheet-feeder for feeding a recording sheet from a sheet cassette. Image forming devices are provided for forming a toner image. An image bearer bears a toner image formed by the image forming devices; and a transferring device transfers the toner image on the image bearer to a recording sheet. A sheet amount detector detects the amount of recording sheets in the cassette. A mode controller allows the image forming devices to start their operations before the sheet feeding section conveys a recording sheet when the amount of recording sheets detected by the sheet amount detector exceeds a predetermined reference amount, and allows the image forming devices to start their operations after the sheet-feeding section conveys the recording sheet when the amount of recording sheets detected by the sheet amount detector is smaller than the reference amount.

Abstract: A printing system adapted to be able to supply printing media of a job subjected to a printing process by a printing apparatus from the printing apparatus to a cutting apparatus, the cutting apparatus being capable of performing a cutting process for the printing media, includes a controller that permits printing print data of a job in a specific area on a printing medium by the printing apparatus in case that the job to be processed is a first type job that does not need the cutting process by the cutting apparatus, the controller inhibiting printing print data of a job in the specific area on the printing medium by the printing apparatus in case that the job to be processed is a second type job that needs the cutting process by the cutting apparatus.

Abstract: A media handling device includes sensing means disposed in a media elevator that is movable in a generally-vertical travel path proximate to a generally-fixed surface. The sensing means detects a recorded information that is disposed in the surface. The resulting detected information is used to identify the media elevator's current position. Also, another media handling device includes a recorded information disposed in a movable media elevator. Sensing means are fixed proximate to a generally-vertical media elevator travel path. The recorded information is sensed and the resulting detected information is used to identify the media elevator's current position.

Abstract: An image forming apparatus includes an image forming unit that forms an image on a sheet of recording medium, a sheet feed tray selecting unit, a medium size selecting unit that selects a first medium size, a medium type selecting unit that selects a medium type. A determining unit determines operation of the image forming unit based on a search result of a first sheet feed tray corresponding to the first medium size selected by the medium size selecting unit, a search result of a second sheet feed tray corresponding to the medium type selected by the medium type selecting unit, a selected tray selected by the sheet feed tray selecting unit, and resetting values specified for the operation of the image forming unit.

Abstract: An automatic document feeder includes an input tray, a transfer path, a roller assembly, an ejecting tray, a light emitter, a light receiver, a comparator and a discriminating unit. The light emitter successively emits multiple light beams of different intensities to the document. When the multiple light beams penetrating through the document are received by the light receiver, the light receiver outputs corresponding voltage signals. The discriminating unit is electrically connected to the light receiver for discriminating document types according to the voltage levels of the voltage signals.

Abstract: In an image forming method, an electrostatic latent image formed on a surface of a photoreceptor is developed into a developer image with a developer, and a printing paper transported on a transfer belt is brought into contact with the surface of the photoreceptor so as to transfer the developer image onto the printing paper. The printing paper is transported in a proper transport direction, in which a projection generated in one direction on the printing paper as a result of cutting the printing paper in a printing paper manufacturing process does not face a surface of the transfer belt at a leading edge of the printing paper being transported on the transfer belt. In this way, even in the presence of the projection generated when the printing paper is cut, the printing paper naturally strips off from the surface of the photoreceptor, thereby preventing toner contamination caused by a striping claw in contact with the leading edge of the printing paper.

Abstract: An image forming apparatus including a plurality of paper feed stages includes a setting unit configured to set a paper type including a plurality of items for each of the plurality of paper feed stages, a storage unit configured to store a paper type history indicating a history of one or more paper types set by the setting unit for each paper feed stage, a control unit configured to acquire the stored paper type history for each paper feed stage, and a display control unit configured to display the acquired paper type history for each paper feed stage in a setting screen for setting the paper type for one of the plurality of paper feed stages to be able to be selected. The setting unit sets, for the paper feed stage, the paper type selected via the setting screen.

Abstract: There is provided an image forming system that automatically discharges paper sheets other than poorly fed ones without making an emergency stop, even when poor paper feeding is caused due to a paper jam or the like. At paper feeding, information showing poor paper feeding is transmitted when the poor paper feeding is detected in supplying the paper sheets. At image forming, a determination is made whether the paper conveyance in forming the image is continued or stopped when an instruction, based on the information showing the poor paper feeding. At paper discharging, a determination is made whether the paper conveyance in discharging the paper sheets is continued or stopped when an instruction, based on the information showing the defective conveyance.

Abstract: When forming an image, if there are not enough sheets remaining in a paper feed cassette to satisfy the image forming request, the image forming operation is not executed, and along with prompting the user to refill the paper, the paper feed cassette is pushed out towards an uninstalled state. The apparatus waits for a paper refill, and begins the image forming operation after that paper refill.

Abstract: A terminal apparatus, a consumables residual quantity display program, and a recording medium are disclosed. The terminal apparatus, which is connected to a printing apparatus through a network, includes an acquisition unit for acquiring information about consumables of the printing apparatus from the printing apparatus; and a display controller for displaying the information about the consumables, which information is acquired by the acquisition unit, if the information of at least one item of the consumables fulfills a predetermined condition. The display controller may display a no-display specifying screen that prompts a user to specify whether a “no-display” mode should be activated, in which “no-display” mode, displaying the information about the consumables is stopped even if the predetermined condition is fulfilled when the information is to be acquired by the acquisition unit at a next time.

Abstract: An image recording apparatus including: a body; a supply tray attached to the body for putting a recording sheet thereon; a recording mechanism provided in a middle of a feed path defined in the body for recording an image on the recording sheet; a feeding mechanism which has an arm pivotably supported at one of opposite ends thereof and a feeding roller rotatably provided in the other of the opposite ends of the arm, and which is configured such that the recording sheet is fed toward the recording mechanism by rotating of the feeding roller held in contact with the recording sheet; a discharge opening provided in the body for discharging the recording sheet therethrough; a cover supported by the body to be pivotable between an open position and a closed position; and a cover-arm interlock mechanism which permits the arm to pivot such that the feeding roller contacts the recording sheet when the cover is positioned at the open position, and which positions the arm such that the feeding roller is away from the

Abstract: An image forming apparatus provided with a sheet feeding tray to store sheets for image forming; a sheet feeding section to feed the sheets form the sheet feeding tray so as to supply the sheets for the image forming; and a control section to individually administer remaining sheets stored in the sheet feeding tray in advance and replenishment sheets replenished when the sheet feeding tray is replenished with the sheets in a state where the sheets stored in the sheet feeding tray in advance is remaining. Whereby, a JOB can be continued or aborted appropriately with reference to information and remaining amounts of remaining sheets and replenishment sheets in one sheet feeding tray, since the information and the remaining amounts are administered individually.

Abstract: An image forming apparatus has a rotary guide including a path for a sheet being conveyed. The guide is rotatable so that an exit of the path faces one of at least two conveyance destinations. A motor rotates the guide, and a detector outputs a detection signal when a predetermined posture of the guide is detected. An instructing section outputs instruction signals to the motor to rotate the guide toward the predetermined posture. A judging section judges whether a detection signal has been received in response to the instruction signal, and a notifying section counts a consecutive occurrence number of a judgment result to the effect that no detection signal was received in response to the instruction signal this time and gives a notification prompting an inspection request of the image forming apparatus when the consecutive occurrence number reaches a set number.

Abstract: Provided is an image forming device including: a sheet number control part for controlling a maximum processable sheet number set on a paper attribute basis for a finisher for finishing a printed sheet; an automatic tray switching part for switching an initially selected tray part to another tray part when paper runs out in the midst of print processing on sheets fed from the initially selected tray part to continue the print processing, the initially selected tray part being initially selected from a plurality of tray parts holding sheets of different paper attributes; and a tray switch determining part for, when a feeding tray part runs out of paper in the midst of print processing set to execute finishing, determining whether to actuate the automatic tray switching part on the basis of maximum processable sheet numbers and a paper attribute of paper of a selectable tray part candidate.

Abstract: An image forming apparatus is provided with an image forming station for forming an image, a display unit for displaying specified information, a mode changing section for switching a mode of the image forming apparatus between a first mode for waiting on standby with first power consumption and a second mode for waiting on standby with second power consumption lower than the first power consumption, a determining section for determining whether or not an image can be formed after the mode is switched from the second mode to the first mode, a starting section for starting the display unit when the determining section determines that no image can be formed, and a notifying section for displaying on the display unit information to the effect that no image can be formed.

Abstract: An image forming apparatus of the invention conveys paper fed by a paper feeding mechanism piece by piece to a paper discharging unit through a paper conveying path. An image forming unit is arranged in a midway portion of this paper conveying path and executes an image forming process for printing an image based on image data on paper being conveyed. A sensor that detects a type of the paper conveyed is arranged on an upstream side with respect to the image forming unit on the paper conveying path. Image forming process conditions for the image forming unit are set in accordance with a detection result of the sensor. When the paper fed to the paper conveying path is paper not detected by the sensor, the image forming process is started awaiting a detection result by the sensor. On the other hand, when the paper is detected by the sensor, the image forming process is started without awaiting paper type detection.

Abstract: When an error occurs in an image processor, error information including a performer of the job having been processed upon occurrence of the error, the type of the job, and the type of the error is transmitted to a host. In the host, a transmission destination of support information is determined based on the type of the job having been processed upon the occurrence of the error, and the support information is retrieved from a knowledge base, based on the type of the error in the job, and transmitted to the transmission destination.

Abstract: An image forming apparatus is provided with an apparatus main body having a casing structure and adapted to perform an image forming operation, a window provided on a casing of the apparatus main body for enabling the interior of the apparatus main body to be seen, and an indicator provided in the apparatus main body for displaying specified indication information. The indicator is arranged at such a position as to face the window.

Abstract: A method for detecting a media change includes the steps of comparing a previous media condition to a current media condition, detecting a media change when the previous media condition is in one state and the current media condition is not that one state and, prompting a user to make appropriate menu selections when the media change is detected.

Abstract: A mechanism for detecting an amount of remaining sheets, includes: a sheet feeding tray to be accommodated in an apparatus main body such that the sheet feeding tray can be inserted into and withdrawn from the apparatus main body, in which sheets can be loaded in an inside of the sheet feeding tray; a tilting plate that is tiltably provided in the sheet feeding tray so as to tilt in accordance with an amount of remaining sheets in the sheet feeding tray; a rotating member that rotates between a starting end position and a final end position of rotation of the rotating member in association with the tilting of the tilting plate; and a locking mechanism that locks the rotation of the rotating member.

Abstract: A printing system includes a first media holder configured to hold a plurality of sheets of media; and a second media holder configured to hold a different plurality of sheets of media. A contacting component is configured to selectively contact an individual sheet of media within the first media holder or within the second media holder. Additionally; a member, having a measurable property that is sensed by a sensor in correlation with a position of the individual sheet of the media in either the first or second media holder, provides a signal selectively indicative of the position of the individual sheet of media in either the first media holder or the second media holder.

Abstract: A method of ordering a job queue includes providing a marking system that includes a first marking engine and a storage device storing first and second print jobs in queue. The first marking engine includes first and second metrics. The method includes determining a present state value of the first and second metrics for the first marking engine, and estimating an incremental depletion value of the first and second metrics of the first and second print jobs. The method further includes comparing the incremental depletion value of the first and second metrics, respectively, with the present state value of the first and second metrics for the first marking engine. The method also includes ordering the first and second print jobs in the storage device based at least partially on the comparison. A system is also discussed.

Abstract: A print method of an image forming apparatus that loads at least one sheet of print media in a print media feeding tray, the method including: setting a print-all-paper mode to perform a print operation on the print media loaded in the print media feeding tray without selecting a number of sheets of print media; and performing a print operation on the loaded print media according to the set print-all-paper mode.

Abstract: A sheet remainder detecting device for detecting the remaining amount of sheets in a sheet stack is provided with a displacing member displaceable according to the thickness of the sheet stack; a first and a second optical sensors each having a light emitting element for emitting light toward the displacing member and a light receiving element for receiving the light emitted by the light emitting element and reflected by the displacing member; and a controller for discriminating the remaining amount of the sheets based on detection signals of the first and second optical sensors. The displacing member includes a light irradiation region to be irradiated with the lights from the light emitting elements and movable according to an amount of displacement of the displacing member.

Abstract: A system and method is provided for asynchronous reporting of printer maintenance data in a printer. The method can include the operation of setting a hardware trap for a printer power-on event in the printer. The hardware trap is configured to report to a harvesting server in response to generation of the hardware trap. A further operation is generating the printer power-on event using the hardware trap when the printer is powered-on. Another operation is collecting printer maintenance data in response to the printer power-on event. In addition, the printer maintenance data that has been collected is sent to the harvesting server in order to update the printer maintenance data stored by the harvesting server.

Abstract: An image forming apparatus comprises a sheet tray to store sheets to form an image thereon; a detecting section to detect a capacity of empty space of each of the sheet tray; and a sheet managing section to compare the capacity of empty space of the sheet tray with a capacity of sheets of one or plural bundles of sheets as a unit of supply to be stored in the sheet tray, wherein in the case that the capacity of empty space of the sheet tray is equal to or larger than the capacity of sheets of one or plural bundles of sheets, the sheet managing section notifies that it is possible to supply sheets by the one or plural bundle of sheets as a unit of supply to the sheet tray.

Abstract: An image forming apparatus of the invention conveys paper fed by a paper feeding mechanism piece by piece to a paper discharging unit through a paper conveying path. An image forming unit is arranged in a midway portion of this paper conveying path and executes an image forming process for printing an image based on image data on paper being conveyed. A sensor that detects a type of the paper conveyed is arranged on an upstream side with respect to the image forming unit on the paper conveying path. Image forming process conditions for the image forming unit are set in accordance with a detection result of the sensor. When the paper fed is paper not detected by the sensor, the image forming process is not started. After paper type detection by the sensor, the paper is directly discharged. When the paper fed is paper of the same type as paper detected by the sensor, the image forming process is started without performing paper type detection.

Abstract: An image forming apparatus including a printer section to form an image on a paper sheet; a plurality of paper feed trays; and a controller which controls the image forming apparatus to execute a job, wherein, the controller sets a paper size, a paper type, and a paper feed tray to be used for each page of the job, and wherein in cases where a first paper feed tray is refilled with the paper sheet, after the first paper feed tray runs out of the paper sheet in the course of executing a first job and is switched to a second paper feed tray by an automatic tray switching function, the controller continues to feed the paper sheet by using the second paper feed tray, even in cases where the first paper feed tray has been set as a paper feed tray for the each page of the first job.

Abstract: When an image forming apparatus receives print data to which page quantity information has been added from an external apparatus, it decides by which emulation among a plurality of types of emulations to interpret the print data, and outputs the print data emulation-processed depending on the decision to an engine which forms an image for each page. Further, when it is determined that the page quantity of the print data outputted to the engine is larger than the page quantity indicated by the page quantity information, the apparatus instructs the engine to suspend image formation.

Abstract: An image forming apparatus of the invention conveys paper fed by a paper feeding mechanism piece by piece to a paper discharging unit through a paper conveying path. An image forming unit is arranged in a midway portion of this paper conveying path and executes an image forming process for printing an image based on image data on paper being conveyed. A sensor that detects a type of the paper conveyed is arranged on an upstream side with respect to the image forming unit on the paper conveying path. Image forming process conditions for the image forming unit are set in accordance with a detection result of the sensor. When the paper fed to the paper conveying path is paper not detected by the sensor, the image forming process is started awaiting a detection result by the sensor. On the other hand, when the paper is detected by the sensor, the image forming process is started without awaiting paper type detection.

Abstract: One or more ink-usage parameters are adjusted based on ink remaining and historical ink usage, to reduce ink usage for an image to be printed on a sheet of media with ink. The image is printed on the sheet of media with the ink, in accordance with the ink-usage parameters. Adjustment of ink-usage parameters and printing an image on a sheet of media with the ink are repeated for each additional image to be printed on a sheet of media.

Abstract: An image forming apparatus including a plurality of container units containing sheets, a sheet feeding device provided for each of the plurality of container units and configured to feed the sheets; and a controller switching between modes including a first mode and a second mode in order to automatically switch a sheet feeding position from a container unit in current use to another container unit. In the first mode, the sheet feeding position is switched to the other container unit in the state in which a prescribed amount of sheets are left in the container unit in current use, and in the second mode, the sheet feeding position is switched to the other container unit after the sheets in the container unit in current use are exhausted.

Abstract: An image forming apparatus and a printing medium feeding unit thereof are disclosed. The image forming apparatus includes a main body, a cassette removably mounted in the main body to load a printing medium therein, and a sensing unit provided in the main body to sense whether the cassette is mounted in the main body and whether the printing medium is in the cassette. The sensing unit includes a first actuator mounted in the main body to sense whether the printing medium is in the cassette, a second actuator mounted in the main body to sense whether the cassette is mounted in the main body, and a sensor having a sensing part to sense operation of the first actuator and the second actuator. Accordingly, the image forming apparatus can sense whether the cassette is properly mounted in the main body and whether the printing medium is in the cassette, with a simple constitution while minimizing the number of sensors.