Canon Kabushiki Kaisha

Masahiro Serizawa

Yoshihito Osari

Hideyuki Ikegami

Akira Morisawa

Hitoshi Kato

Satoshi Kaneko

Hirokazu Takahashi

Keizo Isemura

Noriaki Matsui

Tokuharu Kaneko

Toru Ono

Yoshio Mizuno

Taisei Fukada

Masayoshi Taira

Akihiko Satoh

Hirohiko Kishimoto

Yoshihiro Hosomi

Naoto Watanabe

Kenji Morita

Takahiro Watanabe

Akinobu Nishikata

Keita Takahashi

Nobuo Sekiguchi

Ichiro Sasaki

Takuya Kawamura

Yuichi Yamamoto

Katsuyuki Yamazaki

Akiko Kanno

Hidehiko Kinoshita

Atsushi Chaki

Satoru Yamamoto

Shigemichi Hamano

Shunsaku Kondo

Rieko Akiba

Satoshi Okawa

An image forming apparatus that is capable of using a residual sheet effectively even in a double-sided printing mode. A control unit controls to perform a double-sided image formation process to recording sheets. A detection unit detects a jam of the recording sheet. A determination unit determines whether residual sheets, which are recording sheets on the conveyance path other than a jamming sheet that generates a jam, are available in the image forming process resumed after the jam is removed based on the number of copies of sheets on which the same image is formed, the recording sheets on which images have been formed on one sides, and the latest recording sheet that was normally ejected. The control unit stops the process and ejects the residual sheets that are determined unavailable from the conveyance path when a jam is detected during the process.

Image forming apparatus that is capable of double-sided printing, control method therefor, and storage medium storing control program therefor

Provided is an image forming apparatus capable of executing a plurality of kinds of binding process in one job. A printer control section transmits, to a finisher, a job for equal to or larger than a total number of copies being a sum of a first number of copies for performing the binding process by using a staple and a second number of copies for performing the binding process without use of the staple. On the finisher side, in accordance with the job, a finisher control section causes a stapler to perform a stapling process for the first number of copies and an eco-stapler to perform an eco-stapling process for the second number of copies.

Image forming apparatus and post-processing apparatus

A design support method of verifying control on a device of an image forming apparatus registers, in a storage device, trigger information for specifying a content of control to be executed when a start condition for switching the control state of the device is satisfied (S). The apparatus then registers, in the storage device, the allowable range of the state change of the device due to control switched when the start condition is satisfied (S). The apparatus then verifies whether the state change of the device due to the control switched when the start condition is satisfied falls outside the allowable range, by referring to the operation state of the device which is input through an input unit, and the trigger information registered in the storage device (S).

Support method for simulating a printing operation

A printer control apparatus can be applied to an image forming apparatus in which a plurality of types of readers and a plurality of types of printers can be connected to a single controller, and which enables efficient transfer of image data from the reader to the printer via an image memory of the controller. The controller receives image data from a reader and temporarily stores the same in an image memory, and transmits the stored image data to a printer. The controller acquires a reader processing speed from the reader and a printer processing speed from the printer, and determines, while the image data is being written to the image memory, timing for transmitting the image data written in the memory to the printer according to a difference between the reader processing speed and the printer processing speed and a sub-scan size of the image data.

Printer control apparatus and method of controlling the same, printer and method of controlling the same, reader and method of controlling the same, and image forming system

A simulator apparatus simulates a behavior of an image forming apparatus in order to verify the behavior. The simulator apparatus includes a computing unit that performs a simulation operation on the behavior of the image forming apparatus, and a selection unit that selects a simulation speed of the computing unit.

Simulator apparatus and simulation method

A design support method of inspecting control on an image forming apparatus based on a simulation result of operation control on a virtual device which is modeled to simulate operation of the image forming apparatus includes the steps of referring to control definition information for determining whether an operation request is proper with respect to a virtual device for which the operation request is input, in accordance with an operating state of the virtual device, and determining, based on the control definition information referred to in the referring step whether operation of the virtual device can be performed.

Support method, design support apparatus, and storage medium

An image reading apparatus which enables reduction of time to be taken from a job start instruction to a reading operation start. An automatic document feeder unit feeds an original. An upstream reader reads an image on one side of the original fed by the automatic document feeder unit. A downstream reader is disposed downstream of the upstream reader in an original feeding direction, to read an image on another side of the original. The upstream reader and the downstream reader read images of respective white reference plates, and the image reading apparatus generates correction data for the upstream reader and the downstream reader based on the images of the respective white reference plates read by the upstream reader and the downstream reader.

Image reading apparatus and control method therefor

A sheet discriminating apparatus includes a pair of conveying rotary members for conveying a sheet while rotating with the sheet sandwiched between the pair of conveying rotary members, a vibration detecting sensor for detecting vibrations of the pair of conveying rotary members. The sheet discriminating portion further includes a discriminating portion for making a discrimination in a type of the sheet based on the vibrations detected by the vibration detecting sensor.

Sheet discriminating apparatus and image forming apparatus

There is provided a printer control apparatus which can be applied to an image forming apparatus in which a plurality of types of readers and a plurality of types of printers can be connected to a single controller, and which enable efficient transfer of image data from the reader to the printer via an image memory of the controller. The controller receives image data from a reader and temporarily stores the same in an image memory, and transmits the stored image data to a printer. The controller acquires a reader processing speed from the reader and a printer processing speed from the printer, and determines, while the image data is being written to the image memory, timing for transmitting the image data written in the memory to the printer according to a difference between the reader processing speed and the printer processing speed and a sub-scan size of the image data. The controller causes the reader to start reading an original, and transmits the written image data from the image memory to the printer in the determined timing.

A computer readable design support program for inspecting a processing operation of software that controls a sheet conveyance mechanism by displaying the behavior of feeding a virtual sheet from a virtual sheet stock portion on a display portion, includes a sheets number setting procedure of setting the sheets number of virtual sheets stored in the virtual sheet stock portion, a sheet feed display procedure of displaying the behavior of feeding the virtual sheet from the virtual sheet stock portion on the display portion, a stored sheets number subtraction procedure of subtracting the stored sheets number of virtual sheets corresponding to the virtual sheet stock portion to which the virtual sheet is supplied in the sheet feed display procedure, a judgment procedure of judging whether or not the virtual sheet is used up in the virtual sheet stock portion where the stored sheets number of virtual sheets is subtracted in the stored sheets number subtraction procedure, and a paper out display procedure of displaying on the display portion the paper out on the virtual sheet stock portion for which it is judged that the virtual sheet is used up in the judgement procedure.

Design support program and design support method

A design support method capable of verifying correct processing operation of software for controlling a paper transport mechanism by using a computer includes a displaying step of displaying a simulation screen relating to transport of virtual paper on a display unit of the computer, a jam setting step of presetting a condition for causing a paper jam with respect to the virtual paper, a jam causing step of causing the paper jam in accordance with the condition preset in the jam setting step, a selecting step of, when the paper jam is caused by the jam causing step, selecting a sheet of virtual paper, the sheet being subjected to the paper jam, by an instruction from a user, and a deleting step of deleting the sheet of virtual paper selected by the selecting step from the simulation screen.

An image forming system has a sheet deck assembly, an image forming apparatus, and a feeding buffering apparatus with plural feeding buffer trays for temporarily storing sheets of printing paper fed from plural printing paper decks of the sheet deck assembly. The feeding buffering apparatus feeds the temporarily stored sheets to the image forming apparatus.

Image forming system with temporary storage trays between sheet storage units and image forming apparatus

A sheet supplying apparatus having a plurality of sheet decks for supplying sheets connected in series, and provided with a controller for controlling the feeding of the sheets of each sheet deck, wherein each sheet deck has a sheet stacking portion for supporting the sheets thereon, a sheet conveying path for guiding the sheets from an upstream side to a downstream side, and a joining conveying path joining the sheet conveying path for guiding the sheets from the sheet stacking portion to the sheet conveying path, wherein the sheet decks are connected in such a manner that the respective sheet conveying paths are connected thereto, and the controller judges the position of the sheet deck for supplying a sheet preceding by one the sheet supplied in predetermined order when the sheets are supplied in order from each sheet deck and controls so as to pre-feed the sheet in the predetermined order to the vicinity of the upstream side of a joining point between the sheet conveying path in the sheet deck for supplying the preceding sheet and the joining conveying path when the judged sheet deck is disposed downstream of the sheet deck for supplying the sheet in the predetermined order.

Sheet supplying apparatus and image forming system

A color image forming apparatus which is capable of preventing deterioration in image formation quality caused by vibrations of a developing unit without halting an image forming operation and using a simple construction. A developing rotary unit incorporates developing devices corresponding to respective ones of a plurality of image formation colors. In forming an image, the developing rotary unit is moved to location for development of an image of each of the plurality of image formation colors. The level of vibrations applied to the developing rotary unit is detected, and the drive control pattern for the developing rotary unit is determined depending on the detected level of vibrations.

Growing community of inventors

Toride, Japan

Masahiro Serizawa