A method of converting a CMYK toner printer to print with a white toner, comprising the steps: providing a CMYK toner printer; wherein the toner printer has four printing cartridges; wherein the four printing cartridges comprise a black toner printing cartridge, a cyan toner printing cartridge, a magenta toner printing cartridge, and a yellow toner printing cartridge; removing the black toner printing cartridge from the toner printer, such that there is an empty toner cartridge slot; providing a white toner printing cartridge that is filled with a white toner; installing the white toner printing cartridge into the empty toner cartridge slot; and providing raster image processor (RIP) software, such that the printer is able to incorporate the white toner into one or more images printed by the printer.

A method of manufacturing a frame unit from a first unit. The first unit includes a first image carrying member, a supporting member supporting the first image carrying member, and a frame to which the supporting member is adhered. The first image carrying member includes a first edge portion member, and the first edge portion member includes a first restricted portion. The supporting member includes a bearing engaging with the first edge portion member so that the first image carrying member is rotatable about a rotational axis. The frame includes a first restricting portion restricting movement of the first image carrying member. The method includes separating in which the first image carrying member is separated from the supporting member while in a state in which the supporting member is adhered to the frame.

A method of modifying a toner hopper including a toner window and an end cap. The method including providing a slot on the end cap and applying a toner seal covering the toner window, the toner seal including a pull tab. The method further including applying an end seal to the toner hopper, the end seal providing a gap and placing the pull tab within the gap and the slot.

The present disclosure features an image forming apparatus having a first developing unit having a first developing roller; and a first toner supply unit configured to supply toner to the first developing unit, the first toner supply unit having: a first container configured to accommodate the toner therein, the first container having a first inlet opening through which the toner is received in the first container and a first outlet opening through which the toner in the first container is discharged; a first lid configured to close the first inlet opening; and a first shutter configured to open the first outlet opening when the first lid closes the first inlet opening, and to close the first outlet opening when the first lid opens the first inlet opening.

A remanufacturing method of a developing apparatus including: a communicating step of removing a part of a frame of the developing apparatus to form a communication hole such that an outside of the frame and a developing chamber of the frame are connected each other; a refilling step of refilling an inside of the frame with developer via the communication hole; and a sealing step of sealing the communication hole.

A remanufacturing method for remanufacturing a second developing device from a first developing device, the first developing device including a frame provided with a developer accommodating chamber for accommodating a developer, the frame having an opening for communicating the developer accommodating chamber with the outside of the frame; and a first cap member configured to seal the opening, the first cap member being adhesively bonded to a first region of the frame with a first adhesive capable of dissolving the frame, and the remanufacturing method including: removing the first cap member from the first region such that a rough surface is formed in the first region; filling the developer accommodating chamber with the developer; and bonding a second cap member different from the first cap member to a second region of the frame different from the first region to seal the opening with the second cap member.

A manufacturing method includes a dividing step for dividing a supporting member into a first divided portion including a fixed portion to a frame and a second divided portion including a second engaged portion, a divided-portion detaching step for detaching the second divided portion from the frame, and a separating step for detaching an engaging portion from a first engaged portion and separating a developing unit from the frame.

A manufacturing method of a cartridge, the cartridge being attachable to an apparatus main body of an image forming apparatus, the cartridge including a first member and a second member, the first member including a receiving surface and a retaining portion, and the second member including a contact surface in contact with the receiving surface. In the manufacturing method, the first member and the second member are held so that the contact surface covers the retaining portion and so that the contact surface and the receiving surface are in contact with each other and joined by ultrasonic spot welding so that a recess recessed towards the retaining portion is formed in the second member and so that at least part of a fused portion of the first member and the second member enters the retaining portion.

A manufacturing method includes a removing step for removing at least a part of a contact portion of a cover portion from a supporting member, the cover portion being configured to come into contact with a projecting portion included in a frame when the supporting member is deformed to allow a second engaged portion to be detached from an engaging portion in a state in which a fixed portion of the supporting member is fixed to the frame, a deforming step for deforming the supporting member to allow the second engaged portion to be detached from the engaging portion in the state in which the fixed portion is fixed to the frame, and a separating step for detaching an engaging portion from a first engaged portion and separating a developing unit from the frame.

The present disclosure features an image forming apparatus having a first developing unit having a first developing roller; and a first toner supply unit configured to supply toner to the first developing unit, the first toner supply unit having: a first container configured to accommodate the toner therein, the first container having a first inlet opening through which the toner is received in the first container and a first outlet opening through which the toner in the first container is discharged; a first lid configured to close the first inlet opening; and a first shutter configured to open the first outlet opening when the first lid closes the first inlet opening, and to close the first outlet opening when the first lid opens the first inlet opening.