Abstract: Magnetic imaging apparatus and method wherein a latent magnetic image is created on a magnetizable imaging member comprising a base or web containing a magnetizable component and wherein said imaging member has an overcoating of an electroconductive material. After development of the latent image with a magnetic toner composition, the developed image is transferred by pressure contact to a receiving substrate and fixed thereto. The imaging member provides substantially improved adhesive properties and efficient transfer of the toner particles to the receiving substrate.

Abstract: A magnetic master is provided by premagnetizing a magnetizable recording member, forming characters on the backing layer of the recording member with a typewriter or suitable marking means, and exposing the recording member from the backing layer side to flash energy to demagnetize the background areas and form a latent magnetic image. The latent magnetic image may be contacted with a magnetic toner and the developed image transferred to a receiving surface where it is permanently fixed. The magnetic master may be developed hundreds or thousands of times to produce the desired number of prints.

Abstract: This invention is directed to new electrophotographic, and magnetic toners, which are useful for example in high speed fusing systems, these toners being comprised of a polyamide resin, a pigment or colorant, which pigment or colorant may be magnetic and as an optional ingredient, a carrier material. The polyamide resin is of the formula ##STR1## wherein R, R.sub.1, R.sub.2, and R.sub.3 are radicals independently selected from aliphatic, substituted aliphatic, aromatic, substituted aromatic, cycloaliphatic, and heterocyclic, x is a number of from 1 to about 100, and y is a number of from 1 to about 100. In one preferred embodiment the toner composition is comprised of the polyamide resin and a high loading, 50-75 percent of a magnetic material, allowing for high speed fusing in magnetic imaging systems.