Image forming system, image forming device, post-processor, and program

An image forming system comprising:

• an input unit for input of setting information including a quantity of special sheets per set and an insertion position of each special sheet for a copy, wherein a set of a plurality of different kinds of special sheets are disposed in a predetermined order;
• an image forming unit that forms an image on a recording sheet or on a special sheet, based on inputted image data;
• a conveying unit that feeds a recording sheet from a recording sheet feeding tray or a special sheet from a special sheet feeding tray, conveys the fed recording sheet or the special sheet along a conveying path, and ejects the fed recording sheet or special sheet to an ejection tray;
• a control unit which controls the image forming unit and the conveying unit to feed a recording sheet or a special sheet, based on setting information inputted from the input unit, to form an image at least on the fed recording sheet, and to eject the fed recording sheet or the special sheet;
• and
• a jam detecting unit which detects occurrence of a jam in the image forming system, wherein if a quantity of special sheet or sheets to be used for one copy is not an integer multiple of the quantity of special sheets per set, the control unit controls the conveying unit to eject an unnecessary special sheet or sheets each time image forming and ejection for one copy are completed, and
• when occurrence of a jam is detected by the jam detecting unit during ejection of the unnecessary sheet or sheets and if one or more special sheets having been fed are present in the image forming system, the control unit obtains a quantity of the one or more special sheets, and controls the conveying unit, after the jam being released, to eject a special sheet or sheets in a remaining quantity calculated by subtraction of the obtained quantity of the one or more special sheets from the quantity of the unnecessary sheet or sheets to be ejected.

An image forming system comprising:

• an input unit for input of setting information including a quantity of special sheets per set and an insertion position of each special sheet for a copy, wherein a set of a plurality of different kinds of special sheets are disposed in a predetermined order;
• an image forming unit that forms an image on a recording sheet or on a special sheet, based on inputted image data;
• a conveying unit that feeds a recording sheet from a recording sheet feeding tray or a special sheet from a special sheet feeding tray, conveys the fed recording sheet or the special sheet along a conveying path, and ejects the fed recording sheet or special sheet to an ejection tray;
• a control unit which controls the image forming unit and the conveying unit to feed a recording sheet or a special sheet, based on setting information inputted from the input unit, to form an image at least on the fed recording sheet, and to eject the fed recording sheet or the special sheet;
• a jam detecting unit which detects occurrence of a jam in the image forming system;
• and
• a stacking unit which is provided in the conveying path to stack a recording sheet or special sheet having been conveyed by the conveying unit, for post processing, wherein when occurrence of a jam is detected by the jam detecting unit, the control unit recognizes whether one or more special sheets which have been fed are present at a place other than the stacking unit in the image forming system, and if it is recognized that one or more special sheets are present at the place other than the stacking unit, the control unit controls the conveying unit, after the jam being released, to eject a special sheet or sheets as unnecessary up to one that is on the special sheet feeding tray and disposed preceding a special sheet that is of the same kind as a most front one that was present at the place other than the stacking unit at the time of the occurrence of the jam.

An image forming system comprising:

• an input unit for input of setting information including a quantity of special sheets per set and an insertion position of each special sheet for a copy, wherein a set of a plurality of different kinds of special sheets are disposed in a predetermined order;
• an image forming unit that forms an image on a recording sheet or on a special sheet, based on inputted image data;
• a conveying unit that feeds a recording sheet from a recording sheet feeding tray or a special sheet from a special sheet feeding tray, conveys the fed recording sheet or the special sheet along a conveying path, and ejects the fed recording sheet or special sheet to an ejection tray;
• a control unit which controls the image forming unit and the conveying unit to feed a recording sheet or a special sheet, based on setting information inputted from the input unit, to form an image at least on the fed recording sheet, and to eject the fed recording sheet or the special sheet;
• a jam detecting unit which detects occurrence of a jam in the image forming system;
• and
• a stacking unit which is provided in the conveying path to stack a recording sheet or special sheet having been conveyed by the conveying unit, for post processing, wherein if a quantity of special sheet or sheets to be used for one copy is not an integer multiple of the quantity of special sheets per set, the control unit controls the conveying unit to eject an unnecessary special sheet or sheets each time image forming and ejection for one copy are completed, and
• when occurrence of a jam is detected by the jam detecting unit during ejection of the unnecessary sheet or sheets and if one or more special sheets having been fed are present at a place other than the stacking unit in the image forming system, the control unit obtains a quantity of the one or more special sheets, and controls the conveying unit, after the jam being released, to eject a special sheet or sheets in a remaining quantity calculated by subtraction of the obtained quantity of the one or more special sheets from the quantity of the unnecessary sheet or sheets to be ejected.

An image forming device connectable to a post-processor having a special sheet feeding tray to mount a set of a plurality of different kinds of special sheets that are disposed in a predetermined order, and an ejection tray to eject a recording sheet on which an image has been formed or a special sheet fed from the special sheet feeding tray, the image forming device comprising:

• an input unit for input of setting information including a quantity of special sheets per set and an insertion position of each special sheet for a copy;
• an image forming unit which forms an image on a recording sheet, based on inputted image data;
• a feed-out unit which feeds out a recording sheet on which an image has been formed by the image forming unit to the post-processor;
• and
• a control unit to control the post-processor to eject a recording sheet to the ejection tray, the recording sheet having been fed out from the image forming unit to the post-processor, and to feed a special sheet from the special sheet feeding tray and eject it to the ejection tray, according to inputted setting information, wherein, when jam detection information is input from the post-processor and if one or more special sheets having been fed are present in the post-processor, the control unit obtains, from the post-processor, a quantity of the one or more special sheets, and after the jam being released, the control unit controls the post-processor to feed, from the special sheet feeding tray, and eject a special sheet or sheets as unnecessary up to one that is disposed preceding a special sheet that is of the same kind as a most front one that was present in the post-processor at the time of the occurrence of the jam.

An image forming device connectable to a post-processor having a special sheet feeding tray to mount a set of a plurality of different kinds of special sheets that are disposed in a predetermined order, and an ejection tray to eject a recording sheet on which an image has been formed or a special sheet fed from the special sheet feeding tray, the image forming device comprising:

• an input unit for input of setting information including a quantity of special sheets per set and an insertion position of each special sheet for a copy;
• an image forming unit which forms an image on a recording sheet, based on inputted image data;
• a feed-out unit which feeds out a recording sheet on which an image has been formed by the image forming unit to the post-processor;
• and
• a control unit to control the post-processor to eject a recording sheet to the ejection tray, the recording sheet having been fed out from the image forming unit to the post- processor, and to feed a special sheet from the special sheet feeding tray and eject it to the ejection tray, according to inputted setting information, and to eject an unnecessary special sheet or sheets each time ejection of a recording sheet or sheets and a special sheet or sheets for one copy is completed if a quantity of a special sheet or sheets to be used for one copy is not an integer multiple of the quantity of special sheets per set, wherein when jam detection information is input from the post-processor during ejection of the unnecessary sheet or sheets and if one or more special sheets having been fed are present in the post-processor, the control unit obtains a quantity of the one or more special sheets and controls the post-processor, after the jam being released, to feed, from the special sheet feeding tray, and eject a special sheet or sheets in a remaining quantity calculated by subtraction of the obtained quantity of the one or more special sheets from the quantity of the unnecessary sheet or sheets to be ejected.

An image forming device connectable to a post-processor having a special sheet feeding tray to mount a set of a plurality of different kinds of special sheets that are disposed in a predetermined order, a stacking unit to stack, for post-processing, a recording sheet on which an image has been formed or a special sheet which has been fed from the special sheet feeding tray, and an ejection tray to eject the recording sheet or the special sheet, the image forming device comprising:

• an input unit for input of setting information including a quantity of special sheets per set and an insertion position of each special sheet for a copy;
• an image forming unit which forms an image on a recording sheet, based on inputted image data;
• a feed-out unit which feeds out a recording sheet on which an image has been formed by the image forming unit to the post-processor;
• and
• a control unit to control the post-processor to eject a recording sheet to the ejection tray through the stacking unit, the recording sheet having been fed out from the image forming unit to the post-processor, and to feed, from the special sheet feeding tray, and eject a special sheet or sheets to the ejection tray through the stacking unit, according to inputted information,
• wherein when jam detection information is input from the post-processor and if one or more special sheets having been fed are present at a place other than the stacking unit in the post-processor, the control unit obtains a quantity of the one or more special sheets and controls the post-processor, after the jam being released, to eject a special sheet or sheets as unnecessary up to one that is on the special sheet feeding tray and disposed preceding a special sheet that is of the same kind as a most front one that was present at the place other than the stacking unit at the time of the occurrence of the jam.