Diffusion transfer

diffusion transfer
photographic method of transferring an image from an exposed donor negative paper to a receiver film or paper, in one step, using a film processor.

Thermal Dye Sublimation Printer (or Diffusion Transfer)
A high resolution, continuous tone color printer. This technology allows the dot intensity to vary and to create many more colors than thermal wax.

All instant film uses diffusion transfer to move the dyes from the negative to the positive via a reagent. The process varies according to the film type.
[edit] Black and White Roll/Pack film ...

See also: Stand, Exposure, Film, Color, Yellow