General Electric Company

Genicom Corp.

Werner H Mailer

Charles E Milliser

John M Karalevicz

Gregory F Fossella

Henry C Sipe

Carl R Cline, Ii

Cabinet for an input-output device

The tractor comprises a frame, a drive roller carried by the frame, a pressure roller and a carrier therefor. The pressure roller is biased against the drive roller. The pressure roller can be moved to be spaced slightly from the drive roller to enable paper adjustment or it can be moved to a storage position. The friction feed tractor has a paper edge guide which is automatically moved to a storage position when not in use. In their storage positions the friction feed tractor and paper edge guide act as paper supports for pin feed tractor operation.

Friction feed tractor

Data printer

A cut form paper transport apparatus in a belt printer includes driven exit friction rollers disposed for rolling engagement with a pressure roller pivotally supported on a pair of support arms which carry a deflector or guide plate spaced above the platen and disposed for engagement with the leading edge of a sheet of paper as it leaves the printing region for deflection of the leading edge into an exit path tangent to the platen and such that the leading edge of the sheet moves between the exit friction rollers and the pressure roller for engagement thereby when the sheet is in the exit path. Mounted on the deflector plate is a pair of adjustment rollers disposed for rolling engagement with the outer surface of the platen for adjusting the position of the deflector plate with respect to the platen.

Feed mechanism for continuous and cut form paper

The gap between the print head and the printing surface or platen in a printer is extremely critical in certain types of printers. Where printers are required to accept print media of various thickness (single or multipart paper), an adjust mechanism is required to optimize the print gap. A problem arises thereafter whenever ribbon has to be changed or new paper fed into the printer, since the print head must be retracted from its optimum gap position for ease of operation. The present invention provides for automatically resetting the print head to its predetermined previous gap spacing following movement of the print head away from the printing surface for servicing such as paper loading on ribbon replacement. This is accomplished by providing a lever, adapted to move the print head away from the printing surface, with a cam face for mating with a cam follower carried by a gap adjustment arm pivoted for movement in fixed distance increments about a pivot point. The movable arm serves as a memory for recording the previous print head gap spacing as well as providing extremely fine control for moving the print head in fine, fixed distance increments corresponding to the incremental distance movements of the movable arm.

Print gap adjust mechanism for printers

Growing community of inventors

Waynesboro, VA, United States of America

Werner H Mailer