An image forming apparatus includes a processor that derives, for each of a plurality of blocks of image data, a value indicating a toner amount to be used in forming a toner image by referring to a density of every pixel, of a plurality of pixels included in each block of image data, shifts a window, and outputs the window before shifting and the window after shifting, the window before shifting and the window after shifting overlapping with each other, and determines a fixing temperature for a fixing operation based on an analysis result of a first toner amount in the window that is output by referring to the toner amount of each block included in the window before shifting, and an analysis result of a second toner amount in the window that is output by referring to the toner amount of each block included in the window after shifting.

In an example, a method includes providing a print agent comprising chargeable particles in a carrier fluid to a print agent concentration apparatus (600). The print agent may be passed between a conveyor (604) and an electrode (602), and a potential applied to cause the chargeable particles to be attracted to the conveyor and to form a concentrated layer of particles on the conveyor. A proportion of the carrier fluid may be separated from the concentrated layer of particles and a thickness of a remaining layer on the conveyor may be measured. It may be determined if the measured thickness of the layer meets predetermined criteria and, if not, an operational parameter of the print agent concentration apparatus may be adjusted.

An image forming apparatus includes a calculation portion that calculates an image ratio of the electrostatic image to be formed. A controller controls developer supply from a developer supplier to a developing unit based on the toner density output of an inductance sensor. An adjustment portion adjusts the density of the toner output from the toner density detection portion to a higher value in a case where the image ratio calculated by the calculation portion is higher than a predetermined image ratio.

A downtime relating to formation and detection of a detection image is reduced. An image forming apparatus includes a controller configured to calculate a first conversion unit to convert a gradation of input image data so that density output for the input image data becomes a first density output characteristic based on a first detection result of the detection image detected by a density sensor in a first mode. The controller generates a second conversion unit to convert the gradation of the input image data so that the density output for the input image data becomes a second density output characteristic in a second mode based on the detection result in the first mode and correction information, and further updates the correction information based on a second detection result of the detection image detected by the density sensor in the second mode and the first detection result.

A waste toner container provided for use in an image forming apparatus includes: a body receiving, through an inlet, waste toner discharged from the image forming apparatus, and contains the waste toner; a conveyance member conveying the waste toner, which has been received through the inlet; a waste toner deposition chamber disposed downstream of the inlet in a waste toner conveyance direction such that the waste toner that has been conveyed is increasingly deposited therein, the chamber having a light-transmissive window through which amount of the deposited waste toner is optically monitorable from outside of the body; a conductive member disposed on an inner surface of the body so as to come into contact with the waste toner being conveyed; and a connection unit disposed between the conductive member and an earth member provided in the image forming apparatus to electrically connect between the conductive member and the earth member.

An image forming apparatus includes a movable image bearing member on which an image is formed with use of a liquid developer including toner and a carrier liquid in an image forming position, a transfer unit configured to transfer the image from the image bearing member to a recording material in a transfer position, an acquisition unit configured to acquire information about a moisture content of the recording material, an adjustment unit configured to be able to supply a carrier liquid to the image bearing member on a downstream side of the image forming position and on an upstream side of the transfer position with respect to a movement direction of the image bearing member, and a control unit configured to cause the adjustment unit to adjust a quantity of the carrier liquid which is conveyed to the transfer position according to the moisture content of the recording material.

A fixing device includes: a fixing member that heats a toner image formed on a recording sheet in order to fix the toner image on the recording sheet; a pressurizing member that nips the recording sheet together with the fixing member to pressurize the toner image on the recording sheet; a heater that heats the pressurizing member; and a hardware processor that controls a heating temperature of the pressurizing member by the heater, wherein the hardware processor acquires setting of glossiness of the toner image and controls the heating temperature to be higher as the glossiness in the setting is lower.

Identification information of a toner bottle recorded in an IC chip is included in a toner bottle. When information on remaining amount of toner is successful, a printing apparatus notifies a management server with identification information of the toner bottle and information on remaining amount of toner, obtains toner usage amount used in printing processing according to an execution of printing processing based on print job, and updates information on remaining amount recorded in the IC chip according to usage amount. When reading of information of the IC chip fails, updating of information on remaining amount recorded in the IC chip, according to usage amount of toner used in printing processing according to execution of printing processing based on print job, which is received when the reading fails, is suppressed. Notification including information indicating the reading has failed as the information on remaining amount is transmitted.

An image-forming apparatus includes an electrophotographic photosensitive member including a conductive base and a single-layer photosensitive layer disposed on the conductive base, the single-layer photosensitive layer including a binder resin, a charge-generating material, a hole-transporting material, and an electron-transporting material; and a developing unit including a developing roller that develops an electrostatic latent image formed on a surface of the electrophotographic photosensitive member with a developer including a toner in order to form a toner image, the developing roller being arranged to come into contact with the photosensitive layer. The ratio R/P of the content R [mass %] of the binder resin in the photosensitive layer to the pressing force P [N/mm] at which the developing roller is pressed against the photosensitive layer is about 11.5 or more and about 19.6 or less.

An image forming apparatus includes an image forming unit configured to form an image with toner, a halftone processor configured to convert image data by performing halftone processing, a first determining unit configured to determine a first toner consumption amount for each page based on the image data, a second determining unit configured to determine a second toner consumption amount for each page based on the converted image data, a print percentage calculator configured to calculate a print percentage for one page based on the first toner consumption amount, a notifying unit configured to notify a remaining amount of the toner of the image forming unit based on the first toner consumption amount of a page of which the print percentage is larger than a threshold and the second toner consumption amount of a page of which the print percentage is equal to or smaller than the threshold.