Patent ID: 7172354
Filing Date: 2007-02-06
Classification: B41J

Abstract:
1. A machine for imprinting characters adjacent a top edge or adjacent a bottom edge of: a sheet of paper, comprising: a. a keypad connected to an internal computer for entering print commands which will appear on a display screen; b. a spring loaded ramp platform having a top edge and a bottom edge for receiving a stack of sheets of papers to be imprinted with characters, the ramp having stop members adjacent its bottom edge to prevent the sheets of paper from falling out; c. a document sensor adjacent the top edge of the spring loaded ramp to sense the presence of the stack of sheets in the ramp; d. a first feeder pulley and a parallel second feeder pulley to pull the sheets of paper into the machine; e. a first top separator pulley and a parallel second top separator pulley, a first bottom separator pulley and a second parallel bottom separator pulley, the first top separator pulley intermeshed with the first bottom separator pulley, the second top separator pulley intermeshed with the second bottom separator pulley, the first and second top separator pulleys spinning in one direction and the first and second bottom separator pulleys spinning in the opposite direction to thereby separate a top sheet of paper from the stack of papers; f. an outer arcuate track having a lengthwise portion extending into a semicircular portion extending into a downwardly sloping lengthwise portion, the outer arcuate track having a gap located at the midpoint of its semi-circular portion; g. an inner arcuate track having a lengthwise portion extending into a semicircular portion extending into a downwardly sloping lengthwise portion, the inner arcuate track being parallel to and spaced apart from the outer arcuate track so that a gap is formed between the inner and outer arcuate tracks; h. a multiplicity of inverter pulleys aligned with the inner and outer arcuate tracks; i. a stationary inkjet printer having a print head aligned with the gap in the outer arcuate track; j. a first ejection pulley and a parallel aligned second ejection pulley, the ejection pulleys located adjacent the ends of the downwardly sloping lengthwise portions of the outer and inner arcuate tracks, and leading to a collection stacker tray; k. a multiplicity of stepper motor means to drive all of the respective pulleys and an internal power supply to supply power to the multiplicity of stepper motor means; l. a remote sensor located adjacent the remote ends of the downwardly sloping lengthwise portion of the outer and inner arcuate tracks to advise the document sensor that the imprinted sheet of paper is about to go into the collection stacker tray and to signal the first and second feeder pulleys to pull in the next sheet of from the stack paper; and m. sheets of paper are fed through the machine so that the document sensor senses the paper, the first and second feeder pulley pulls in sequentially stacked sheets of paper, the first and second top and bottom separator pulleys separate the top sheet of paper from the rest of the stack, the inverter pulleys guide the separated sheet of paper into the gap between a location outer and inner arcuate tracks and as the desired imprinted to be on the sheet of paper reaches the gap in the outer arcuate track, the print head of the inkjet printer imprints desired characters on the sheet of paper, and thereafter the sheet of papers continues along the gap between the two arcuate tracks until the sheet is fully inverted and the first and second ejection pulleys cause the sheet of paper to go into the collection stacker tray while the remote sensor provides a signal for the next sheet of paper to be imprinted.