Neghold assembly for photographic printer

A neghold assembly having a film transport assembly movable to and from a print exposure cycle position for positioning selected film frames of a disc film unit at a print gate of a photographic printer, the assembly comprising:

• a film transport assembly base;
• means for holding and indexing the selected film frames of the disc film unit to the print gate position and positioned on the film transport base;
• means for moving the film transport base to and from the print exposure cycle position;
• first adjustment means for adjusting the film transport base in a first direction such that the selected film frame is alignable in the first direction with the print gate in the print exposure cycle position;
• and
• second adjusting means for adjusting the film transport in a second direction substantially transverse to the first direction such that the selected film frame is alignable in a second direction with the print gate in the print exposure cycle position.

A slidable disc film transport assembly for indexing selected film frames of a disc film unit to a print gate of a photographic printer, the assembly comprising:

• a slidable base;
• means for slidably attaching the base to the photographic printer to permit the slidable base to be moved to a disc film printing position;
• a rotatable disc film holder mounted on the slidable base for rotationally indexing selected film frames to a print gate aperture when the slidable base is in the disc film printing position;
• film indexing drive means mounted on the photographic printer for providing a linear motive force;
• pivotal linkage means mounted on the slidable base for converting the linear motive force to a rotational motive force;
• and
• means for transferring the rotational motive force to the rotatable disc film holder to cause indexing of the selected film frame by rotation of the rotatable disc film holder to index a selected film frame into alignment with the print gate.

A neghold assembly for use in a photographic printer for printing an image from a selected film frame of a disc-like film unit at a print gate, the assembly comprising:

• clamping means stationarily attached to the photographic printer for clamping the selected film frame at the print gate in a clamped state and having an unclamped state in which the film frame is not clamped;
• a movable film transport base;
• means for movably attaching the film transport base to the photographic printer;
• means attached to the movable base for holding the disc-like film unit and rotationally indexing the selected film frame to the print gate;
• releasable locking means for locking the transport base in a print exposure cycle position and be releasable to permit movement of the transport base from the print exposure cycle position;
• and
• means responsive to the releasable locking means for causing the clamping means to have the unclamped state when the releasable locking means is released.