Abstract: An image forming apparatus includes a plurality of parts each configured to operate to form an image; and at least one processor configured to control an operation of the image forming apparatus. The at least one processor has a function of executing the following processing: error detection processing of detecting occurrence of an error of each part; failure portion identification processing of identifying a failure portion which is a cause of the error; and determination processing of determining, in a case where the image forming apparatus is reactivated after the identification of the failure portion by the failure portion identification processing, whether there is a failure in a part corresponding to the failure portion information before execution of a preparation operation for enabling an image forming operation.

Abstract: An image forming apparatus includes a mounting unit to which a developer container is mounted, a controller to control a motor to rotate the mounted container, and a sensor to detect a predetermined portion in which the mounted container is rotated. The controller determines whether the container is mounted based on the detection result of the sensor, wherein the controller controls the motor based on the detection result so that a rotation speed of the mounted container is equal to a predetermined rotation speed. After a door is opened, in a case where, while communication between a communication unit and a memory is maintained, a detection result of the sensor is changed from a first detection result in which the predetermined portion is detected to a second detection result in which the predetermined portion is not detected, the controller determines the mounted container has been manually rotated.

Abstract: An image forming apparatus includes a plurality of parts each configured to operate to form an image; and at least one processor configured to control an operation of the image forming apparatus. The at least one processor has a function of executing the following processing: error detection processing of detecting occurrence of an error of each part; failure portion identification processing of identifying a failure portion which is a cause of the error; and determination processing of determining, in a case where the image forming apparatus is reactivated after the identification of the failure portion by the failure portion identification processing, whether there is a failure in a part corresponding to the failure portion information before execution of a preparation operation for enabling an image forming operation.

Abstract: An image forming apparatus on which a developer container is replaceably mounted and which is improved in usability. An image forming unit of the apparatus forms an image using developer contained in a container which is mounted on a mount section. A replenishment mechanism replenishes the developer in the container to the image forming unit, and a cover is opened to mount the container on the mount section and is closed to protect the container mounted on the mount section. If the cover is opened after it is closed in a state in which the container has been removed from the mount section while a predetermined condition related to a remaining amount of the developer in the container is not satisfied, a remount screen is displayed for prompting a user to remount the removed container.

Abstract: Consumption of toner can be minimized in a method of performing dew condensation elimination through toner application to a photosensitive drum. To this end, an image forming apparatus includes a plurality of photosensitive drums; an intermediate transfer belt to which toner images are transferred from the plurality of photosensitive drums; a controller configured to determine whether or not a dew condensation occurrence condition is met; and a dew condensation elimination unit configured to perform a dew condensation elimination operation by applying toner to at least one of the plurality of photosensitive drums in a case in which the controller determines that the dew condensation occurrence condition is met and when a start instruction for image formation is received. When the image formation is started in a color image formation mode, the dew condensation elimination unit executes a first dew condensation elimination mode of applying toner to all of the plurality of photosensitive drums.

Abstract: Provided is an image forming apparatus including: a rotation detection sensor configured to detect rotation of a toner bottle mounted to a mounting unit; a reader configured to communicate to/from a memory mounted to the toner bottle; a controller; and a display. The controller determines whether or not the toner bottle is mounted to the mounting unit based on a detection result obtained by the rotation detection sensor and a communication state of the reader. When determining that the toner bottle has been removed from the mounting unit while a replacement condition for the toner bottle is not satisfied, the controller displays a warning screen for prompting a user to reattach the toner bottle on the display.

Abstract: An image forming apparatus capable of performing appropriate display when a container containing remaining developer is removed from a mount section. A controller of the image forming apparatus determines whether the amount of developer remaining in the container mounted on the mount section is larger than a predetermined amount. If a predetermined condition related to the amount of remaining developer in a developing device is satisfied, in a state where the container is mounted on the mount section, a first screen is displayed for prompting a user to replace the mounted container is displayed. If the predetermined condition is satisfied in a state where the container containing remaining developer in an amount larger than the predetermined amount has been removed from the mount section, a second screen is displayed for prompting the user to remount the removed container.

Abstract: An image forming apparatus on which a developer container is replaceably mounted and which is improved in usability. An image forming unit of the apparatus forms an image using developer contained in a container which is mounted on a mount section. A replenishment mechanism replenishes the developer in the container to the image forming unit, and a cover is opened to mount the container on the mount section and is closed to protect the container mounted on the mount section. If the cover is opened after it is closed in a state in which the container has been removed from the mount section while a predetermined condition related to a remaining amount of the developer in the container is not satisfied, a remount screen is displayed for prompting a user to remount the removed container.

Abstract: An object is to suppress consumption of toner by a method of performing dew condensation elimination through toner application to a photosensitive drum. Provided is an image forming apparatus, including a plurality of photosensitive drums; an intermediate transfer belt to which toner images are transferred from the photosensitive drums; a determination unit which is configured to determine whether or not a dew condensation occurrence condition is met; and a dew condensation elimination unit which is configured to perform a dew condensation elimination operation by applying toner to the photosensitive drum in a case where the determination unit determines that the dew condensation occurrence condition is met and when a start instruction for image formation is received. When the image formation is started in a color image formation mode, the dew condensation elimination unit executes a first dew condensation elimination mode of applying toner to photosensitive drums corresponding to all of colors.

Abstract: An image forming apparatus, including: a conveyance unit configured to convey a sheet on a conveyance path on which the sheet is conveyed; a first conveyance path opening member configured to open a first portion of the conveyance path; a second conveyance path opening member configured to open a second portion, which is located downstream the first portion, of the conveyance path; a sheet leading edge position detecting unit configured to detect a position of a leading edge of a stopped sheet on the conveyance path; and a determination unit configured to determine, based on a detection result of the sheet leading edge position detecting unit, one of not conveying the stopped sheet, causing the conveyance unit to convey the stopped sheet toward the first portion, and causing the conveyance unit to convey the stopped sheet toward the second portion.

Abstract: In a remote server that receives from a work machine or a vessel, machine identification information, identifying the work machine or the vessel, and predetermined operation data, at least one of a managing entity of the work machine or the vessel and a sales entity in charge of the managing entity is identified based on the machine identification information, a base buying price of the work machine or the vessel is calculated based on the predetermined operation data received from the work machine or the vessel, and any one of a regular maintenance history input as appropriate and a regular maintenance history received from the work machine or the vessel, and the base buying price calculated is set to be viewable in at least one of the managing entity and the sales entity when a predetermined period elapses after a predetermined counting start day.

Abstract: The image forming apparatus comprises a photosensitive drum which is replaceable, an intermediate transfer belt unit which is brought into contact with the photosensitive drum to operate and which is replaceable, and a separation motor configured to move the intermediate transfer belt unit in a direction toward the photosensitive drum and in a direction away from the photosensitive drum. The image forming apparatus causes the separation motor to separate the intermediate transfer belt unit and the photosensitive drum from each other in a case where at least one of the photosensitive drum and the intermediate transfer belt unit reaches the replacement timing when the image forming apparatus shifts to a low-power state in which power consumption of the image forming apparatus is suppressed compared with that of the image forming apparatus in a normal operation.

Abstract: An image forming apparatus, upon receipt of an image formation request, controls execution of a second preparatory operation that needs to be performed so that the image forming unit is capable of performing image formation and, independently of the image formation request, controls execution of a first preparatory operation for preparation for the image forming unit before the second preparatory operation. The first and second preparatory operations are accompanied by driving of a photosensitive body. Further, the image forming apparatus, when the image formation request is received by the reception unit before completion of the first preparatory operation, determines whether the second preparatory operation is to be performed after the first preparatory operation without stopping driving of the photosensitive body or after the first preparatory operation by stopping driving of the photosensitive body, in accordance with content of image formation performed in response to the image formation request.

Abstract: An image forming apparatus, including: a conveyance unit configured to convey a sheet on a conveyance path on which the sheet is conveyed; a first conveyance path opening member configured to open a first portion of the conveyance path; a second conveyance path opening member configured to open a second portion, which is located downstream the first portion, of the conveyance path; a sheet: leading edge position detecting unit configured to detect a position of a leading edge of a stopped sheet on the conveyance path; and a determination unit configured to determine, based on a detection result of the sheet leading edge position detecting unit, one of not conveying the stopped sheet, causing the conveyance unit to convey the stopped sheet toward the first portion, and causing the conveyance unit to convey the stopped sheet toward the second portion,

Abstract: An image forming apparatus, upon receipt of an image formation request, controls execution of a second preparatory operation that needs to be performed so that the image forming unit is capable of performing image formation and, independently of the image formation request, controls execution of a first preparatory operation for preparation for the image forming unit before the second preparatory operation. The first and second preparatory operations are accompanied by driving of a photosensitive body. Further, the image forming apparatus, when the image formation request is received by the reception unit before completion of the first preparatory operation, determines whether the second preparatory operation is to be performed after the first preparatory operation without stopping driving of the photosensitive body or after the first preparatory operation by stopping driving of the photosensitive body, in accordance with content of image formation performed in response to the image formation request.

Abstract: In the present invention, an image forming apparatus, when executing a preparation operation to set a state enabling an image forming operation independently from a request to start image formation, determines, as an operation mode, a color mode for executing preparation operations of all image forming units corresponding to each color of developer, or a monochrome mode for executing a preparation operation of only an image forming unit corresponding to a single color of developer in accordance with warning information indicating a state of the image forming apparatus, and executing a preparation operation in the determined operation mode.

Abstract: The image forming apparatus comprises a photosensitive drum which is replaceable, an intermediate transfer belt unit which is brought into contact with the photosensitive drum to operate and which is replaceable, and a separation motor configured to move the intermediate transfer belt unit in a direction toward to the photosensitive drum and in a direction away from the photosensitive drum. The image forming apparatus causes the separation motor to separate the intermediate transfer belt unit and the photosensitive drum from each other in a case where at least one of the photosensitive drum and the intermediate transfer belt unit reaches the replacement timing when the image forming apparatus shifts to a low-power state in which power consumption of the image forming apparatus is suppressed compared with that of the image forming apparatus in a normal operation. A document reading apparatus including a prediction unit.

Abstract: An image forming apparatus which enables double-sided image formation using a sheet feeding unit, and is capable of discharging a sheet, whose sheet length is undetermined by the time the sheet reaches a branch area in conveyance for double-sided image formation, without guiding it to a sheet inverting unit. A conveying flapper switches a destination for a sheet to a first conveying path leading to a sheet inverting unit or a second conveying path leading to a sheet discharge tray. A length of a sheet in a conveying direction is detected while the sheet is being conveyed. When a size of the sheet is undetermined, and the length of the sheet is not detected by the time the sheet reaches the conveying flapper, the conveying flapper is controlled so as to convey the sheet with an image formed on a first side thereof to the second conveying path.

Abstract: An image forming apparatus which enables double-sided image formation using a sheet feeding unit, and is capable of discharging a sheet, whose sheet length is undetermined by the time the sheet reaches a branch area in conveyance for double-sided image formation, without guiding it to a sheet inverting unit. A conveying flapper switches a destination for a sheet to a first conveying path leading to a sheet inverting unit or a second conveying path leading to a sheet discharge tray. A length of a sheet in a conveying direction is detected while the sheet is being conveyed. When a size of the sheet is undetermined, and the length of the sheet is not detected by the time the sheet reaches the conveying flapper, the conveying flapper is controlled so as to convey the sheet with an image formed on a first side thereof to the second conveying path.

Abstract: A temperature measuring device includes a reading unit configured to read a first temperature value from a first temperature sensor that measures a temperature of a heat generating component and a second temperature value from a second temperature sensor that measures an ambient temperature, a calculation unit configured to calculate a correction value from an elapsed time and the first and the second temperature values, and a correction unit configured to calculate an corrected ambient temperature by correcting the second temperature value using the correction value obtained by the calculation unit.