The present disclosure provides a high productivity image forming apparatus in which a control unit calculates power to be used in the apparatus in a case where a throughput thereof is increased and compares the power to be used and suppliable power to the apparatus to determine whether the throughput is to be increased or not.

An image forming apparatus, including: a converting unit configured to convert image data based on a conversion condition; an image forming unit; a measurement unit; and a controller configured to control the image forming unit to form a plurality of measurement images including a first measurement image and a second measurement image, wherein the controller obtains first output characteristics based on a current measurement result of the first measurement image and a previous measurement result of the second measurement image to generate the conversion condition, and wherein the controller obtains second output characteristics based on a current measurement results of the second measurement image and a previous measurement result of the first measurement image to generate the conversion condition.

A characteristic measuring portion measures current-voltage characteristics of a primary transfer member before a toner image for a first surface of a sheet is primarily transferred. A characteristic information storage portion stores characteristic information that indicates the current-voltage characteristics. A first transfer voltage determining portion determines a first transfer voltage based on a first target current value and the characteristic information. A second transfer voltage determining portion determines a second transfer voltage based on a second target current value and the characteristic information that was used when the first transfer voltage was determined, the second target current value being smaller than the first target current value. A voltage control portion applies the first and second transfer voltages to the primary transfer member by a constant-voltage method when the toner images for the first and second surfaces of the sheet are primarily transferred, respectively.

An image forming apparatus includes an image forming unit configured to form a predetermined pattern image on a sheet, a notifying unit configured to provide a notification of an orientation for placing the sheet on which the predetermined pattern image is formed by the image forming unit, on a placement portion, a reading unit configured to read the sheet on a line to line basis, to generate image data, and a detection unit configured to detect a streak-shaped image extending in a direction along a predetermined edge of the sheet, by analyzing the image data generated by reading the sheet by the reading unit, wherein the notifying unit provides a notification of a placement orientation for allowing the sheet, on which the predetermined pattern image is formed, to be read on a line to line basis, the line extending in a direction along the predetermined edge.

An image forming apparatus includes: an image forming portion that includes a developing portion configured to supply toner to an image bearing member bearing an electrostatic latent image formed thereon to develop the electrostatic latent image as a toner image, and is configured to form a toner image on a long paper sheet; a notification portion configured to notify a user about information; and a control portion configured to calculate, in accordance with coverage of a toner image that is a target of image formation, a toner image formation distance with which successive image formation is possible without forcibly discharging degraded toner from the developing portion, and to control the notification portion to notify the calculated toner image formation distance as a first toner image formation distance.

A sheet material feeding apparatus includes: a cassette configured to internally contain a sheet material; a push-up plate that is mounted on an inner bottom surface of the cassette and that is a plate on top surface of which the sheet material is mounted; a push-up plate displacement mechanism configured to include push-up plate biasing members and to change a posture of the push-up plate using a biasing force of one of the push-up plate biasing members; a width regulating member configured to be displaced in a width direction intersecting with a feeding direction and to regulate a position of the sheet material; and a biasing member selecting mechanism that includes a switching unit configured to switch application and release-application of the biasing force of one of the push-up plate biasing members to a posture change of the push-up plate, in interlocking with displacement of the width regulating member.

Systems and methods are provided for configuring media transport flow paths for directing input image receiving media, including of different types, in sheet or roll form from multiple axes to provide wider latitude in selecting particular input image receiving media and combinations of input image receiving media to support execution of a print job. The disclosed schemes are directed at using one or more stationary turn bars disposed generally at 45° in an input media transport path approaching a marking module in an image forming system to allow for sheets or sheeted materials to be positioned at 90° to the in-line input image receiving media transport path directed toward the marking module thus allowing for flexibility in selection among various sources of stacked, pallet and rolled media.

A sheet material feeding device includes: a housing; a cassette configured to accommodate a sheet material therein and capable of being pulled out of the housing; a pushing-up plate which is on the cassette and configured to fluctuate and a position thereof is changed to a feeding position or a retracted position; a rear-end regulating member for regulating a position of an upstream end of the sheet material; a rear-end displacement member which is supported by the rear-end regulating member and configured to fluctuate and a position thereof is changed to a feeding position or a retracted position; a pushing-up plate displacing device configured to change the position of the pushing-up plate to the feeding position; and a rear-end displacement member displacing device configured to complete a position change of the rear-end displacement member to the feeding position before a position change of the pushing-up plate to the feeding position.

An imaging device having a door-actuated feed roll separator mechanism. A pair of opposed panels of a frame of the imaging device are positioned parallel to a media path. A feed roll pair in the media path has a drive roll fixedly and rotatably mounted between the panels and a backup roll mounted to a pair of release assemblies that are slidably mounted to the panels. Biasing members bias the backup roll into contact with the drive roll forming a feed nip. A door pivotally mounted along a bottom end to the frame substantially covers the media path. A pair of tethers connect the pair of release assemblies to the door. With the door lowered, its weight applies a release force to the backup roll separating it from the drive roll to allow for easier removal of a media sheet jammed in the feed nip

An image forming apparatus includes an image carrier, a charging device, a developing device, a transfer member, a registration roller pair, a conveyance guide, and a first cover member. The conveyance guide includes a first conveyance guide opposing one surface of a recording medium conveyed from the registration roller pair to a transfer nip, the one surface being on a side of image carrier, and a second transfer guide opposing another surface of the recording member, the other surface being on a side of the transfer member. The first cover member covers an area along a peripheral surface of the image carrier from the developing device to the transfer member, and forms a substantially sealed space together with the image carrier, the developing device, the transfer member, the registration roller pair, and the transfer guide. A through hole is formed in the first transfer guide.