An image forming apparatus includes plural image forming units and a controller. The plural image forming units are configured to form images of colors using colorants, respectively. The controller is configured to perform control such that the plural images formed by the plural image forming units are output as one image onto a recording medium. At least two of the image forming units are configured to form images using colorants of special colors, respectively and are arranged in succession.

An image forming apparatus, includes: plural image forming units each including an image holding member and configured to form an image that is to be transferred to a recording medium on the image holding member using a dry toner, the number of the plural image forming units being at least five; and plural developing devices each of which is provided in each of the plural image forming units and supplied with the dry toner and a dry carrier, each of the plural developing devices including a dry toner adhering unit that has a length equal to or longer than a length of a long side of an A3 size and to which the dry toner adheres, the dry toner adhering unit being configured to cause the dry toner adhering to the dry toner adhering unit to adhere to the image holding member.

Provided are methods of electrophotographically printing an image on a substrate, methods of transferring an image to a substrate, electrophotographic toner cartridge kits, and electrophotographic printing devices. A plurality of layers of toner particles may be electrophotographically printed, using toner cartridges, providing an imaged area that includes one or more colorant layers that include a colorant and a colorant-layer thermoplastic adhesive, and an adhesive layer that includes an adhesive-layer thermoplastic adhesive. The fusing temperature may be selected to heat the colorant-layer thermoplastic adhesive to a temperature greater than an activation temperature of the colorant-layer thermoplastic adhesive and/or an activation temperature of the adhesive-layer thermoplastic adhesive. The melting temperature, the fusing temperature, or melt flow rate of the colorant-layer thermoplastic adhesive corresponding to at least one of the one or more colorant layers may exceed the melting temperature, the fusing temperature, or the melt flow rate of the adhesive-layer thermoplastic adhesive.

An image forming apparatus includes: a first image forming portion configured to form a brilliant developer image with a brilliant developer; a second image forming portion including at least one image forming portion configured to form a developer image with at least one non-brilliant developer; and a controller configured to control operation of the first image forming portion and the second image forming portion in accordance with received print data. When the controller causes the brilliant developer image to be formed on a medium in accordance with the print data by the first image forming portion, the controller causes a black developer image to be formed between the brilliant developer image and the medium by the second image forming portion.

An image forming apparatus includes: a first developing member that develops a first toner image on a first image carrier with a brilliant toner containing a flat pigment; a second developing member that develops a second toner image on a second image carrier with a non-brilliant toner containing no brilliant pigment; and a controller that controls the first developing member and the second developing member. The controller controls a development efficiency of the brilliant toner of the first developing member to be lower than a development efficiency of the non-brilliant toner of the second developing member.

An image forming apparatus includes: a first developing member that develops a first toner image on a first image carrier with a brilliant toner containing a flat pigment; a second developing member that develops a second toner image on a second image carrier with a non-brilliant toner containing no brilliant pigment; and a controller that controls the first developing member and the second developing member. The controller controls a development efficiency of the brilliant toner of the first developing member to be lower than a development efficiency of the non-brilliant toner of the second developing member.

An interlock power supply stops supplying a voltage if AC power supply is supplying AC voltage and an interlock condition is satisfied, and supplies a voltage if AC power supply is supplying AC voltage and the condition is not satisfied. A non-interlock power supply supplies a voltage independently of the condition, if AC power supply is supplying AC voltage. A first wiring pattern that connects an interface and a switch drive circuit. A second wiring pattern is connected to the non-interlock power supply. A constant-voltage element is provided between a first section of the first wiring pattern and a second section of the first wiring pattern.

An image forming apparatus includes plural image forming units and a controller. The plural image forming units are configured to form images of colors using colorants, respectively. The controller is configured to perform control such that the plural images formed by the plural image forming units are output as one image onto a recording medium. At least two of the image forming units are configured to form images using colorants of special colors, respectively and are arranged in succession.

An interlock power supply stops supplying a voltage if AC power supply is supplying AC voltage and an interlock condition is satisfied, and supplies a voltage if AC power supply is supplying AC voltage and the condition is not satisfied. A non-interlock power supply supplies a voltage independently of the condition, if AC power supply is supplying AC voltage. A first wiring pattern that connects an interface and a switch drive circuit. A second wiring pattern is connected to the non-interlock power supply. A constant-voltage element is provided between a first section of the first wiring pattern and a second section of the first wiring pattern.

Provided is an electrophotographic image forming method using two or more electrostatic image developing toners including a charging step, an exposing step, a developing step, a transferring step, and a fixing step, wherein, among the two or more toners, at least one is an achromatic color toner or a clear toner, and at least one is a chromatic color toner which contains a crystalline resin and a releasing agent; in the fixing step, a recording material to which is transferred an unfixed image formed with the two or more electrostatic image developing toners is nipped and conveyed to a fixing nip portion provided between a heated fixing rotating body and a pressure member, and thermally fixed; and a residual toner component is cleaned by a cleaning rotating body which is in contact with the fixing rotating body and a cleaning member which is in contact with the cleaning rotating body.