Patent application number | Description | Published |
20080217837 | Sheet conveying device, sheet processing apparatus, and image forming apparatus - A sheet conveying device in which at least a sheet is guided and conveyed by a guiding member includes a discharging roller that conveys the sheet, a first guiding member and a second guiding member that are arranged along an outer periphery of the discharging roller, and a supporting shaft that rotatably supports both the first guiding member and the second guiding member. When the first guiding member is located at a first position in which a path between the first guiding member and the discharging roller is closed, the sheet is guided to a shift conveying path, and when the first guiding member is located at a second position in which the path is opened, the sheet is guided to a folding processing tray. | 09-11-2008 |
20080224386 | Sheet conveying device, sheet finisher, sheet feeding device, image forming apparatus, and sheet conveying method - A sheet conveying device includes entrance rollers and registration rollers. The entrance rollers convey a sheet received from delivery rollers to the registration rollers. The registration rollers correct skew of the sheet. A conveying path between the delivery rollers and the registration rollers is equal to or slightly longer than a length of a sheet in a maximum allowable size for skew correction in a conveying direction in which the sheet is conveyed on the conveying path. | 09-18-2008 |
20080236351 | Punching device, conveying device, finishing device, and image forming apparatus - A punching device includes a detecting unit, a punching unit, a moving unit, a storage unit, and a controlling unit. The detecting unit detects a lateral edge position of a recording medium to obtain edge position data. When the edge position data does not indicate an error value, the edge position data is stored in the storage unit as reference data. The controlling unit determines, when the edge position data indicates an error value, a movement amount of the punching unit based on reference data previously obtained and stored in the storage unit. The moving unit moves the punching unit by the movement amount in a direction perpendicular to the conveying direction of the recording medium. | 10-02-2008 |
20080284092 | SHEET FOLDING APPARATUS, SHEET PROCESSING APPARATUS AND IMAGE FORMING APPARATUS - A sheet processing apparatus for an image forming apparatus is configured so as to be capable of preventing the misalignment of the end edge of sheets to be scooped and transported from an intermediate tray, and reliably preventing the so-called displacement of end edges in the post-processing steps of sheets as a recording medium with an image formed thereon, and thereby preventing the inferior appearance during binding. A sheet folding apparatus enables a user to easily adjust the misalignment of the fold line of sheets that occurs during actual use, in the middle folding processing steps of sheets as a recording medium with an image formed thereon. | 11-20-2008 |
20080290830 | Stepping motor driving device, sheet processing device, and image processing apparatus - A stepping motor driving device drives a stepping motor according to a drive pulse of a step signal. A phase matching unit matches, at a time when there is a possibility that a rotor and a phase signal are out of phase with each other, phases of the rotor and the phase signal by applying at least one drive pulse after energizing the stepping motor for a predetermined time and applying a phase signal having a predetermined duration for a final pulse. | 11-27-2008 |
20090014939 | Sheet post-processing apparatus, image forming apparatus, and image forming system - A sheet post-processing apparatus includes a sheet stacking unit, an aligning unit, a moving member, a discharging member, and a discharging motor. The discharging motor drives the discharging member for discharging a pile of sheets in an operation pattern that is selected, depending on a predetermined condition, from among a plurality of operation patterns. | 01-15-2009 |
20090039593 | SHEET PROCESSING APPARATUS AND IMAGE FORMING APPARATUS - A sheet processing apparatus and associated method are provided. The sheet processing apparatus includes a sheet conveying path, a sheet stack tray, a sheet discharging member, a sheet guide member, and a sheet contact portion. The sheet conveying path is configured to convey a sheet, the sheet discharging member discharges the sheet to the sheet stack tray, and the sheet stack tray receives the sheet. The sheet guide member is movable from a first position that guides the sheet discharged from the sheet discharging member to a second position that opens a sheet discharge path of the sheet discharging member. The sheet contact portion is arranged at an upstream side of the sheet discharging member with respect to the sheet conveying path, and responds to the sheet conveyed through the sheet conveying path in order to move the sheet guide member between the first and second positions. | 02-12-2009 |
20090051100 | Paper transport device, paper processing apparatus, and image forming apparatus - A paper transport device is configured to independently drive a paper ejecting roller when predetermined abnormal events occur. When paper-jamming occurs and if no paper is present downstream of a jammed paper or a preceding paper that is present most downstream is located upstream of a predetermined position, the paper ejecting roller is stopped to prevent ejection of papers outside of the paper transport device. When paper-jamming occurs and if a preceding paper that is present most downstream is located downstream of the predetermined position, the paper ejecting roller is independently driven to complete ejection of the preceding paper. | 02-26-2009 |
20090057978 | Sheet processing device, image forming apparatus, and image forming system - A sheet processing device includes a sheet aligning unit that aligns a sheet recording medium. The sheet aligning unit is configured to be pulled out from a main body of the sheet processing device, and includes a sheet conveying member for conveying the sheet recording medium. | 03-05-2009 |
20090060604 | Home-position detecting method, sheet processing device, and image forming apparatus - A processing unit performs a predetermined processing on a sheet in a process of carrying the sheet. A home-position detecting unit detects a home position of a moving member of the processing unit by detecting a part of the moving member using a detecting unit. The home-position detecting unit sets in advance a detection range for recognizing the home position, and when a part to detect the home position is detected in a state in which the moving member is stopped, sets a detection position as the home position by assuming that the detection position is in the detection range without moving the moving member once out of a detection range of the detecting unit. | 03-05-2009 |
20090066001 | Sheet processing device and image forming apparatus - A pressing unit presses vicinity of a trailing edge of a stack of sheets stacked in a tray. An aligning unit aligns the stack of sheets stacked in the tray. A stapling unit binds the stack of sheets aligned by the aligning unit. A discharging unit discharges the stack of sheets bound by the stapling unit. A control unit controls the pressing unit to keep a constant distance from a surface of a top sheet of the stack of sheets when the discharging unit discharging the stack of sheets. | 03-12-2009 |
20090066003 | Sheet aligning device and image forming apparatus - A sheet aligning device includes a sheet feeder that discharges a sheet in a first direction, a sheet tray on which the sheet is stacked, a sheet jogger that aligns the sheet on the sheet tray in a second direction perpendicular to the first direction, and a sheet detection filler that detects a state of the sheet on the sheet tray. The sheet detection filler detects a position of a topmost sheet in the stack of sheets on the sheet tray and determines an alignment position from where the sheet jogger is to begin alignment of the sheets. | 03-12-2009 |
20090137374 | Sheet finisher, image forming apparatus, and sheet processing method - A folding unit folds a sheet. A pressing unit presses a folded side of the folded sheet. A driving unit causes the pressing unit to slide in a direction perpendicular to a sheet conveying direction. A control unit independently sets number of slides at which the pressing unit is to slide on each of a plurality of sections of the folded side depending on a distance of each of the sections from a reference position, and controls the driving unit so as to slide in each of the sections for the number of slides set for that section. | 05-28-2009 |
20090152789 | Sheet creaser, sheet conveyer, sheet finisher, and image forming apparatus - In a sheet creaser, when a sheet is conveyed to a folding unit by a conveyer unit, the folding unit folds the sheet and a pressing unit presses the folded sheet by sliding in a direction substantially perpendicular to a sheet conveying direction. A switching unit switches the conveyer unit between a first position to convey the sheet and a second position unable to convey the sheet. A driving unit drives both the switching unit and the pressing unit. | 06-18-2009 |
20090200725 | Sheet creaser, sheet conveyer, sheet finisher, image forming apparatus, and sheet creasing method - A pressing unit includes a pressure roller that slides on the folded side while rotating, an elastic biasing unit that presses the pressure roller in a thickness direction of the stack of sheets, and a driving unit that slides the pressure roller in a direction substantially perpendicular to a conveying direction of the stack of sheets. A lifting unit, when the pressure roller slides to a first position, temporarily lifts up the pressure roller, and when lifted-up pressure roller slides to a second position, lifts the lifted-up pressure roller down onto the folded side. | 08-13-2009 |
20090206547 | Sheet conveying device, sheet punching device, sheet processing device, image forming apparatus, and method for determining mounting state of measuring unit - A sheet conveying device includes a conveying unit that conveys a sheet in a sheet conveying direction; a measuring unit that measures a position of a side edge of the sheet in a measurement area; a shielding unit having an end portion that is projected into the measurement area for shielding the sheet; a first determining unit that determines whether the shielding unit is detectable in the measurement area; and a second determining unit that determines whether the measuring unit has been mounted in the sheet conveying device based on a result obtained in the first determining unit. | 08-20-2009 |
20090258774 | Sheet creaser, sheet finisher, image forming apparatus, sheet folding method, and computer program product - In a sheet creaser, a sheet set is pushed between a pair of folding rollers to fold the sheet set. Then, a re-pressing roller re-presses the sheet set, which has been folded by the folding rollers, by rolling along the crease. Pressure applied on the sheet set by the folding rollers is released when the re-pressing roller re-presses the sheet set. | 10-15-2009 |
20090283961 | Sheet Stacking device, Drive control method, and computer program product - A sheet stacking unit that stacks sheets thereon is movable up and down. A lifting unit moves the sheet stacking unit up and down. A driving unit drives the lifting unit. A control unit controls a driving speed of the driving unit. A position detecting unit detects a position of the sheet stacking unit in an up-and-down direction. The control unit controls the driving speed according to the position of the sheet stacking unit detected by the position detecting unit. | 11-19-2009 |
20100148417 | Sheet aligning apparatus, sheet processing apparatus, and image forming apparatus - A sheet aligning apparatus includes an alignment surface formed in a planar shape and that presses an end of a sheet to move and align the sheet; and a holding unit that holds the end of the sheet at a position contacting the alignment surface in a state that a curled end of the sheet contacts the alignment surface and the sheet is thus pressed. | 06-17-2010 |
20110184889 | Image forming system - An image forming system includes: an image forming unit that forms an image on a sheet including a mail; a size recognizing unit that recognizes a size of the mail on which the image is formed by the image forming unit; and a postage calculating unit that calculates the postage of the mail, on the basis of a signal output from the size recognizing unit. | 07-28-2011 |
20110220557 | Image forming system - An image forming system includes an SSP unit (sorting guide portion and envelope chuck portion) that functions as an enclosing unit or an enclosing device to enclose, in envelopes, paper on which an image is formed by a copy machine functioning as an image forming device, a weight measuring device that includes a load cell to measure the weight of the paper-enclosed envelopes, and a sorting device that sorts the paper-enclosed envelopes, on the basis of weight data of each of the paper-enclosed envelopes of which the weight is measured by the weight measuring device. | 09-15-2011 |
20110277418 | Recording media sheet processing system, image forming system including same, and insertion method used therein - A recording media sheet processing system includes a folding device including a folding unit to fold a sheet and a squeezing unit to squeeze the folded sheet, an insertion device to insert in an envelope an enclosure, and a controller. The folding device. The controller includes an envelope selector, a selector for selecting whether to fold the sheet and a folding style of the sheet, a first storage unit for storing a folding-related equivalent quantity into which a quantity of each sheet is converted corresponding to the folding style and the number of times the sheet is squeezed, a second storage unit for storing a maximum quantity of sheets insertable, a calculator to calculate a total converted quantity of the enclosure, a determination unit to determine whether the selected envelope type accommodates the enclosure, and a squeezing setter to set the number of times of squeezing. | 11-17-2011 |
20120131885 | INSERTION SYSTEM AND INSERTION METHOD - An insertion system includes an enclosure supply device, an envelope supply device, an insertion device to insert an enclosure supplied from the enclosure supply device into the envelope supplied from the envelope supply device, a first input unit to input identification data of the enclosure inserted into the envelope in each of multiple insertion setting records, a second input unit to input identification data of the enclosure set in the enclosure container of the enclosure supply device, and a controller to determine whether the identification data of the enclosure to be inserted, input by the first input unit, matches the identification data of the enclosure set in the enclosure container, input by the second input unit, and to control supply of the envelope by the envelope supply device as well as supply of the enclosure by the enclosure supply device based on a result of the determination. | 05-31-2012 |