A roller apparatus (102) is provided including roller means (104), drive means (110) for driving rotation of the roller means in use, and an electrical power source for providing electrical power to the drive means in use. The electrical power source is provided by one or more batteries (112) located internally of the roller means.

An image forming apparatus includes a transport section that transports a recording material, a grasping section that grasps a remaining situation of a recording material remaining in a transport path through which the recording material is transported by the transport section, a reception section that receives, from a user, an input of the number of removed sheets of recording material removed from the transport path by the user in a case where the transport of the recording material by the transport section is stopped, and a start section that starts the stopped transport by the transport section based on the number of removed sheets input by the user.

An image forming apparatus includes a transport section that transports a recording material, a grasping section that grasps a remaining situation of a recording material remaining in a transport path through which the recording material is transported by the transport section, a reception section that receives, from a user, an input of the number of removed sheets of recording material removed from the transport path by the user in a case where the transport of the recording material by the transport section is stopped, and a start section that starts the stopped transport by the transport section based on the number of removed sheets input by the user.

A roll transfer device and method is provided, which makes it easy to recognize a unique identification code for a material wound on a roll while quickly and accurately aligning a position of the roll. The roll transfer device comprises a pair of holding units disposed to be spaced apart from each other in a first direction, supporting a roll core seated thereon; and a pair of rotation units disposed on both sides of the roll core along the first direction, wherein the pair of rotation units linearly move in the first direction and are inserted into the roll core seated on the holding unit to align a position of the roll, include one or more keys coupled to one or more key grooves formed in the roll core, and are rotated in a state that they are inserted into the roll core, so that the key is coupled to the key groove, thereby rotating the roll.

A roller apparatus (102) is provided including roller means (104), drive means (110) for driving rotation of the roller means in use, and an electrical power source for providing electrical power to the drive means in use. The electrical power source is provided by one or more batteries (112) located internally of the roller means.

A cord spooler device is provided comprised of a cylindrical body that facilitates the organized winding of a power cord or hose. The body, which can rotate 360 degrees around a vertical axis on an axle attached to a base, may include a tapered design for enhanced cord management. The device allows for manual rotation through a hand crank or powered rotation via a motor or can be adapted for use with a drill or electric rotary tool. The body features a recessed area with a fastener to secure a first end of a cord or hose prior to/during winding. During winding, the power cord or hose is neatly wound around the body, wherein the cord or hose can then be removed from the body in a wound state.