Abstract: An image forming apparatus includes a plurality of discharge portions, an execution control portion, and a permission/nonpermission setting portion. The execution control portion is capable of, in a case where a print process is to be executed in a state where there are one or more sheets in a specific discharge portion that is preliminarily set from among the plurality of discharge portions, holding an execution of the print process, wherein in the print process, an image is formed on a sheet and the sheet with the image is discharged to the specific discharge portion. The permission/nonpermission setting portion sets, in response to a user operation, whether to permit or not permit holding of the execution of the print process by the execution control portion.

Abstract: A relay conveyance device includes a relay conveyance path arranged between an image forming apparatus and a post processing device to convey a sheet from the image forming apparatus to the post processing device, two reversing units reversing a surface side and a back-face side of the sheet, and a control device controlling conveyance of the sheet on the relay conveyance path. The relay conveyance path includes two reverse paths respectively passing through the two reversing units, a branch section branching into the two reverse paths at an upstream side, and a confluence section joining the two reverse paths. The control device controls the branch and confluence sections to convey the sheet while alternately switching the two reverse paths, measures an interval time between the sheets passing through the confluence section, and controls conveyance of the sheet in the two reverse paths so as to uniformize the interval time.

Abstract: An image forming apparatus includes a plurality of discharge portions, an execution control portion, and a permission/nonpermission setting portion. The execution control portion is capable of, in a case where a print process is to be executed in a state where there are one or more sheets in a specific discharge portion that is preliminarily set from among the plurality of discharge portions, holding an execution of the print process, wherein in the print process, an image is formed on a sheet and the sheet with the image is discharged to the specific discharge portion. The permission/nonpermission setting portion sets, in response to a user operation, whether to permit or not permit holding of the execution of the print process by the execution control portion.

Abstract: A relay conveyance device includes a relay conveyance path arranged between an image forming apparatus and a post processing device to convey a sheet from the image forming apparatus to the post processing device, two reversing units reversing a surface side and a back-face side of the sheet, and a control device controlling conveyance of the sheet on the relay conveyance path. The relay conveyance path includes two reverse paths respectively passing through the two reversing units, a branch section branching into the two reverse paths at an upstream side, and a confluence section joining the two reverse paths. The control device controls the branch and confluence sections to convey the sheet while alternately switching the two reverse paths, measures an interval time between the sheets passing through the confluence section, and controls conveyance of the sheet in the two reverse paths so as to uniformize the interval time.

Abstract: An image forming system includes an image forming apparatus and a postprocessing device. The image forming apparatus includes a first communication unit, a paper feeder, and a first control unit. The postprocessing device includes a second communication unit, a postprocessing unit, and a second control unit. The second control unit obtains a first time to perform the postprocessing and a second time to transition to a performable state configured to perform the postprocessing. The first control unit obtains attribute information necessary for the second control unit to obtain the first time and the second time. When the second communication unit receives the attribute information, the second control unit transmits information indicating the first time and the second time. The first control unit controls the operation of the paper feeder based on the information indicating the first time and the second time received by the first communication unit.

Abstract: An image forming system includes an image forming apparatus and a postprocessing device. The image forming apparatus includes a first communication unit, a paper feeder, and a first control unit. The postprocessing device includes a second communication unit, a postprocessing unit, and a second control unit. The second control unit obtains a first time to perform the postprocessing and a second time to transition to a performable state configured to perform the postprocessing. The first control unit obtains attribute information necessary for the second control unit to obtain the first time and the second time. When the second communication unit receives the attribute information, the second control unit transmits information indicating the first time and the second time. The first control unit controls the operation of the paper feeder based on the information indicating the first time and the second time received by the first communication unit.

Abstract: Provided is a document feeding device including: a document feeding portion for feeding a document; a document set detecting portion for detecting presence/absence of a set document; a determination portion for determining whether power supply to the device is started by turning-on of main power or by cancellation of a power saving mode; an initial operation portion for performing an initial operation of initializing the document feeding portion when the power supply to the document feeding device is started by the turning-on of the main power, and restricting execution of the initial operation when the power supply to the document feeding device is started by the cancellation of the power saving mode; and a display portion for displaying, when there is a set document at the start of the power supply, a request to reset the document.

Abstract: A paper-feeding apparatus includes a double paper feed prevention mechanism including a conveyance roller rotating forward in a paper feeding direction, and a handling roller rotating rearward in an opposite direction to the paper feeding direction through a torque limiter and being driven by the conveyance roller when the number of fed sheets of paper is one, a double paper feed detection sensor disposed at a downstream side of the double paper feed prevention mechanism to detect a physical quantity corresponding to the number of fed sheets of paper, and a control unit that determines a frequency of double paper feed events at the downstream side of the double paper feed prevention mechanism based on an output signal of the double paper feed detection sensor, and controls a speed of rearward rotation of the handling roller depending on the frequency of the double paper feed events.

Abstract: Provided is a document feeding device including: a document feeding portion for feeding a document; a document set detecting portion for detecting presence/absence of a set document; a determination portion for determining whether power supply to the device is started by turning-on of main power or by cancellation of a power saving mode; an initial operation portion for performing an initial operation of initializing the document feeding portion when the power supply to the document feeding device is started by the turning-on of the main power, and restricting execution of the initial operation when the power supply to the document feeding device is started by the cancellation of the power saving mode; and a display portion for displaying, when there is a set document at the start of the power supply, a request to reset the document.

Abstract: An inserter apparatus has a printer A and an inserter apparatus B. The printer A has a print section 13, and an insert information output section 9 for outputting insert information including an insert page showing a position of an insert paper and an interval of printing papers. The inserter apparatus B has a discharged paper carrying section 17 of printing papers from the print section 13; a counter section 19 for counting the number of sheets of the printing papers; a paper feeding section 21 for setting the insert paper therein; and a paper feeding controller 23. Based on insert information from the insert information output section 9, the paper feeding controller 23 controls the insert paper to be fed at a timing before the next paper interval is passed after a count value of the counter section 19 reaches one page before the insert page. Therefore, it is possible to realize an excellent short insert processing for the printing papers.

Abstract: When an original document is placed on the lift tray, a timer is reset and starts counting a predetermined time. Whether an alignment device is moved to adjust the original documents loaded on the lift tray in, for example, the widthwise direction transverse to the transportation direction is then determined. If a change in the detected width of the original documents is detected, the timer is reset and started again. If there is no change in the detected width of the original documents, a control waits for the timer to time out. If the timer reaches the predetermined time, the lift tray is driven up by the lift motor and rises until the top limit sensor turns on.

Abstract: An inserter apparatus has a printer A and an inserter apparatus B. The printer A has a print section 13, and an insert information output section 9 for outputting insert information including an insert page showing a position of an insert paper and an interval of printing papers. The inserter apparatus B has a discharged paper carrying section 17 of printing papers from the print section 13; a counter section 19 for counting the number of sheets of the printing papers; a paper feeding section 21 for setting the insert paper therein; and a paper feeding controller 23. Based on insert information from the insert information output section 9, the paper feeding controller 23 controls the insert paper to be fed at a timing before the next paper interval is passed after a count value of the counter section 19 reaches one page before the insert page. Therefore, it is possible to realize an excellent short insert processing for the printing papers.

Abstract: An inserter apparatus has a printer A and an inserter apparatus B. The printer A has a print section 13, and an insert information output section 9 for outputting insert information including an insert page showing a position of an insert paper and an interval of printing papers. The inserter apparatus B has a discharged paper carrying section 17 of printing papers from the print section 13; a counter section 19 for counting the number of sheets of the printing papers; a paper feeding section 21 for setting the insert paper therein; and a paper feeding controller 23. Based on insert information from the insert information output section 9, the paper feeding controller 23 controls the insert paper to be fed at a timing before the next paper interval is passed after a count value of the counter section 19 reaches one page before the insert page. Therefore, it is possible to realize an excellent short insert processing for the printing papers.

Abstract: An image forming device includes an intermediate transfer member to which a toner image formed on an image bearing member is primarily transferred and which is able to simultaneously support a plurality of toner images, a secondary transfer member for secondarily transferring a toner image held on the intermediate transfer member to a sheet, a cleaning unit for removing the toner images from the intermediate transfer member after the secondary transfer, and a feeding member for feeding a sheet into the secondary transfer member. The secondary transfer member features a sheet-delay transfer mode in which a subsequent toner image on the intermediate transfer member is transferred if a previous toner image on the intermediate transfer member is out of sync with the timing at which the toner image is transferred to the fed sheet.

Abstract: When an original document is placed on the lift tray, a timer is reset and starts counting a predetermined time (S12). Whether an alignment device is moved to adjust the original documents loaded on the lift tray in, for example, the widthwise direction transverse to the transportation direction is then determined (S13). If a change in the detected width of the original documents is detected (S13 returns Yes), control returns to S12 and the timer is reset and started again (S12). If there is no change in the detected width of the original documents in S13, control waits for the timer set in S12 to time out (S14). If the timer reaches the predetermined time set in S12 (S15 returns Yes), the lift tray is driven up by the lift motor (S16) and rises until the top limit sensor turns on (S17).

Abstract: An inserter apparatus has a printer A and an inserter apparatus B. The printer A has a print section 13, and an insert information output section 9 for outputting insert information including an insert page showing a position of an insert paper and an interval of printing papers. The inserter apparatus B has a discharged paper carrying section 17 of printing papers from the print section 13; a counter section 19 for counting the number of sheets of the printing papers; a paper feeding section 21 for setting the insert paper therein; and a paper feeding controller 23. Based on insert information from the insert information output section 9, the paper feeding controller 23 controls the insert paper to be fed at a timing before the next paper interval is passed after a count value of the counter section 19 reaches one page before the insert page. Therefore, it is possible to realize an excellent short insert processing for the printing papers.

Abstract: The ADF 11 is a device for feeding an original document toward an original document scanning position R, comprising an original document loading unit 31, paper feeding roller 51, pressure sensor 33 and lift plate drive unit 35. The original document loading unit 31 comprises a lift plate 41 allowing an original document to be loaded and vertically movable in an original document loading direction. The paper feeding roller 51 is disposed above the lift plate 41 disposed at the lowermost position with an interval therebetween, and is capable of moving upwardly in coordination with a force received from below from the lift plate 41. The pressure sensor 33 is capable of detecting upward pressure on the paper feeding roller 51. The lift plate drive unit 35 causes the lift plate 41 to be lowered upon detection of upward pressure on the paper feeding roller 51.

Abstract: When an original document is placed on the lift tray, a timer is reset and starts counting a predetermined time (S12). Whether an alignment device is moved to adjust the original documents loaded on the lift tray in, for example, the widthwise direction transverse to the transportation direction is then determined (S13). If a change in the detected width of the original documents is detected (S13 returns Yes), control returns to S12 and the timer is reset and started again (S12). If there is no change in the detected width of the original documents in S13, control waits for the timer set in S12 to time out (S14). If the timer reaches the predetermined time set in S12 (S15 returns Yes), the lift tray is driven up by the lift motor (S16) and rises until the top limit sensor turns on (S17).

Abstract: This ADF 11 comprises an original document holding unit 31, a paper supply roller 51, and a lift plate drive unit 35. The original document holding unit 31 is capable of holding original documents and has a lift plate 41 capable of moving original documents to the loading direction. The paper supply roller 51 is capable of supplying an original document held in the lift plate 41. The lift plate drive unit 35 raises the lift plate 41 so that the original document abuts to the paper supply roller 51 when an original document is placed in the lift plate 41, and has the ability to lower the raised lift plate 41 when the next input operation is not performed within the prescribed time after an input operation is performed in regards to the operation panel 23.

Abstract: The ADF 11 is a device for feeding an original document toward an original document scanning position R, comprising an original document loading unit 31, paper feeding roller 51, pressure sensor 33 and lift plate drive unit 35. The original document loading unit 31 comprises a lift plate 41 allowing an original document to be loaded and vertically movable in an original document loading direction. The paper feeding roller 51 is disposed above the lift plate 41 disposed at the lowermost position with an interval therebetween, and is capable of moving upwardly in coordination with a force received from below from the lift plate 41. The pressure sensor 41 is capable of detecting upward pressure on the paper feeding roller 51. The lift plate drive unit 35 causes the lift plate 41 to be lowered upon detection of upward pressure on the paper feeding roller 51.