An image forming apparatus includes a rotatable toner carrying member; a rotatable transfer member contactable to the image carrying member to transfer a toner image from the image carrying member onto a sheet; an urging member for urging the transfer member toward the image carrying member; a supporting member supporting the transfer member so as to be movable toward and away from the carrying member; a driving source for rotating the transfer member; and a coupling member provided opposed to the transfer member in an axial direction of the transfer member to engage with the transfer member to transfer a driving force from the driving source to the transfer member.

An image forming apparatus includes a rotatable toner carrying member; a rotatable transfer member contactable to the image carrying member to transfer a toner image from the image carrying member onto a sheet; an urging member for urging the transfer member toward the image carrying member; a supporting member supporting the transfer member so as to be movable toward and away from the carrying member; a driving source for rotating the transfer member; and a coupling member provided opposed to the transfer member in an axial direction of the transfer member to engage with the transfer member to transfer a driving force from the driving source to the transfer member.

A development bias to be applied onto a developing unit is reduced, in a case where it is determined that a remaining amount of toner is equal to or less than a threshold, in a mode in which a rotation speed of a developing unit is faster than a rotation speed of an image bearing member to increase an amount of toner to be supplied to the image bearing member.

An image forming apparatus includes an image forming unit that forms an image based on image data; and a control unit that controls the image forming unit, the control unit is capable of controlling an image quality adjustment operation in the image forming unit, and in formation of an image on which foil stamping is performed, selection of no performance of an image quality adjustment or/and selection of performance of an image quality adjustment for foil stamping is enabled.

An image forming apparatus includes an image forming unit that forms an image based on image data; and a control unit that controls the image forming unit, the control unit is capable of controlling an image quality adjustment operation in the image forming unit, and in formation of an image on which foil stamping is performed, selection of no performance of an image quality adjustment or/and selection of performance of an image quality adjustment for foil stamping is enabled.

An image forming apparatus include an operation mode determination section, a display section, an image determination section and a display controller. The operation mode determination section determines a current operation mode among a plurality of operation modes for executing an image forming processing. The display section displays an image. The image determination section determines an image indicating the operation mode determined by the operation mode determination section. The display controller displays an image determined by the image determination section and information for supporting an operation by a user relating to the image forming processing on the display section.

An image forming apparatus include an operation mode determination section, a display section, an image determination section and a display controller. The operation mode determination section determines a current operation mode among a plurality of operation modes for executing an image forming processing. The display section displays an image. The image determination section determines an image indicating the operation mode determined by the operation mode determination section. The display controller displays an image determined by the image determination section and information for supporting an operation by a user relating to the image forming processing on the display section.

An image processing unit includes a region separation device and a spatial filtering device. The region separation device detects line widths of a manuscript image in which the line widths are different between a vertical line and a horizontal line and determines which of the vertical line or the horizontal line is thinner. The spatial filtering device executes an emphasizing process to make a widening ratio of a thinner line of the vertical line or the horizontal line higher than a widening ratio of the other line.

An image processing unit includes a region separation device and a spatial filtering device. The region separation device detects line widths of a manuscript image in which the line widths are different between a vertical line and a horizontal line and determines which of the vertical line or the horizontal line is thinner. The spatial filtering device executes an emphasizing process to make a widening ratio of a thinner line of the vertical line or the horizontal line higher than a widening ratio of the other line.

An apparatus which forms an electrostatic latent image by exposing a charged photosensitive member with light. The apparatus identifies a pixel which has density value less than a threshold value and is sandwiched in a predetermined direction between two pixels having density values greater than or equal to the threshold value in image data, generates screen image data by screen processing on the image data, and outputs, for each of one pixel of the two pixels sandwiching the identified pixel and a pixel adjacent to the one pixel in the predetermined direction, an adjusted density value the screen image data.