Patent application number | Description | Published |
20110076081 | Image forming apparatus - An image forming apparatus includes an image forming unit that forms an image on a recording medium; a conveying unit that conveys the recording medium on which the image is formed; a crease forming unit that performs a crease forming process on the conveyed recording medium; a determining unit that determines whether or not the recording medium is a predetermined recording medium; and a control unit that prohibits the crease forming process from being performed by the crease forming unit when the determining unit determines that the recording medium is the predetermined recording medium. | 03-31-2011 |
20110130260 | Creasing device and image forming system - A creasing device includes: a first member on which a linear convex-edged blade is formed in a direction perpendicular to a sheet conveying direction; a second member on which a concave-edged blade pairing with the convex-edged blade is formed; and a drive unit that drives the first and second members to relatively come close to and away from each other, thereby making a crease on the sheet, wherein in a standby state, the drive unit keeps faces of the first member and second member not parallel; and in making a crease on the sheet, causes the convex-edged blade and the concave-edged blade to have point contact with each other via the sheet held therebetween so as to initiate a creasing movement by a rotation movement thereof. | 06-02-2011 |
20110245055 | Creasing device and image forming system - A creasing device includes a creasing unit that creases sheets on a one-by-one basis, which is conveyed to a folding device of a subsequent stage, a sheet detection unit that detects a position of a sheet delivered to the creasing device and a control unit that obtains reference information of a fold-position for the folding device and performs control of a stop position of the sheet according to reference information of the fold position, thereby adjusting a crease position. | 10-06-2011 |
20110301005 | Image forming system, sheet finisher, and folding method - An image forming system includes: a folding unit that folds a sheet of paper to form a fold in the sheet; a creasing unit that, before the sheet is folded, produces a crease in the sheet at a fold position where the fold is to be formed; a crease-position adjusting unit that adjusts a crease position where the crease is to be produced; a fold-position adjusting unit that adjusts the fold position; a first input unit that receives an input specifying an amount, by which the crease position is to be adjusted; and a second input unit that receives an input specifying an amount, by which the fold position is to be adjusted, wherein when the fold position is adjusted by the second input unit, the crease position is also adjusted in synchronization with the adjustment of the fold position. | 12-08-2011 |
20110301008 | Creasing device and image forming system - A creasing device for creasing sheets on a per-sheet basis, the creasing device includes: a first member extending perpendicularly to a sheet conveying direction and including a male blade, which has a convex cross section; a second member extending perpendicularly to the sheet conveying direction and including a grooved female blade, into which the male blade to be fitted with a sheet between the female blade and the male blade; and a drive unit that brings the first member and the second member relatively into and out of contact with each other to cause a sheet stopped at a predetermined position to be pinched between the first member and the second member and creased. An edge portion of any one of the first member and the second member has an arcuate shape. | 12-08-2011 |
20120083400 | Sheet Processing Apparatus And Image Forming System - A sheet processing apparatus includes: a correcting unit that corrects alignment of a sheet; a post-processing unit that performs post-processing on the sheet after the correcting unit corrects the alignment of the sheet; and a creasing unit that forms a crease on the sheet after the correcting unit corrects the alignment of the sheet. | 04-05-2012 |
20120086161 | CREASING APPARATUS AND IMAGE FORMING SYSTEM - A creasing apparatus that performs a creasing process on a sheet, the creasing apparatus including a first conveying path on which a creasing unit is located, the creasing unit performing a creasing process on a sheet conveyed therein; a second conveying path that conveys a sheet conveyed therein to a downstream side without any process being performed on the sheet; and a control unit that, while the first conveying path conveys a sheet so that the creasing unit performs the creasing process on the sheet, causes a subsequent sheet to be conveyed to the downstream side from the second conveying path. | 04-12-2012 |
20120115702 | Creasing apparatus and image forming system - A creasing apparatus forming a crease on sheets one by one includes: a first member having a linear convex blade formed in a direction perpendicular to a sheet conveying direction; a second member having a concave blade being paired with the convex blade; and a drive unit that moves the first and second members so as to cause the convex blade and the concave blade to form a crease on a sheet stopped at a predetermined position. The first member forms the convex blade with first comb and second comb and the second member forms the concave blade with third comb and fourth comb that advance and retract relative to each other. The drive unit selects advanced and retracted positions of the first comb and second comb and advanced and retracted positions of the third comb and fourth comb so as to perform a creasing process or a perforating process. | 05-10-2012 |
20120157285 | CREASING DEVICE AND IMAGE FORMING SYSTEM - A creasing device includes: a first member including a convex blade; a first receiving member including an attachment surface where the first member is to be attached; a second member arranged to face the first member and including a concave blade that allows the convex blade to be fitted thereinto; and a second receiving member including an attachment surface where the second member is to be attached; and a driving section that brings the first and second members into contact with each other and separates the first member and the second member from one another. When the first member is attached to the first receiving member and the second member is attached to the second receiving member to face each other, a blade edge of at least one of the concave blade and the convex blade has an arcuate shape convex toward one another. | 06-21-2012 |