Patent ID: 11926149
Assignee: TOP VENDING MACHINE ELECTRONICS CO., LTD.
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A printer comprising a frame, a paper roll, a printing device, a paper cutting device, a paper output device, and a panel, with the paper roll, the printing device, the paper cutting device, the paper output device, and the panel disposed, from rear to front in sequence, on the frame,
wherein the paper roll includes a paper sheet mounted around a spool having two ends rotatably mounted to two sides at a rear section of the frame,
wherein the printing device includes a printer seat, a printer head, a paper delivering roller, and a motor, wherein the printer seat is disposed on an intermediate section of the frame, wherein a guiding board extends rearwards from a front side of an upper section of the printer seat, wherein two limiting boards are disposed on two sides of the guiding board, wherein the printer head is disposed on a front side of a lower section of the printer seat, wherein the paper delivering roller is rotatably mounted to the printer head, wherein the motor is configured to drive the paper delivering roller which pulls the paper sheet of the paper roll to pass through the guiding board and the printer head for printing,
wherein the paper cutting device is disposed on a front section of the frame, wherein the paper cutting device includes a paper input passage and a paper cutter, wherein the paper sheet of the paper roll moves forwards to pass through the paper input passage,
wherein the paper output device includes a paper output seat and a paper output cover, wherein a paper output passage is defined between the paper output seat and the paper output cover, wherein a rear end of the paper output passage intercommunicates with the paper input passage of the paper cutting device,
wherein the panel is disposed on a front end of the frame, wherein a paper outlet is formed in a lower section of the panel and intercommunicates with a front end of the paper output passage,
characterized in that:
each of the two limiting boards of the printer seat includes a first engaging hole located above the guiding board, wherein each of the two limiting boards further includes an axle hole in front of the guiding board,
wherein the printing device further includes a guiding member having a guiding body extending in a transverse direction, wherein the guiding body further includes two axles respectively on two ends thereof, wherein the two axles are pivotably coupled in the axle holes of the two limiting boards, wherein the guiding body includes a guiding piece extending forwards, wherein at least one guiding roller is rotatably mounted to a rear side of the guiding body, wherein each of the two ends of the guiding body further includes a retaining arm extending upwards and having a first engaging block, wherein each first engaging block is engageable with an associated first engaging hole to form a positioned state, such that a paper guiding gap is formed between the at least one guiding wheel and the guiding board and is adjacent to the front side of the guiding board, thereby guiding the paper sheet to contact with the guiding board and the at least one guiding wheel and to pass in between the guiding board and the at least one guiding wheel, and wherein the paper delivering roller pulls the paper sheet forward to pass through the printer head for printing,
wherein when a new paper sheet is installed around the spool of the paper roll, the first engaging blocks of the retaining arms are disengaged from the first engaging holes to form an unpositioned state, the guiding body is pivotable forward to pivot the at least one guiding roller forwards and upwards away from the guiding board, and the guiding piece is pivotable rearwards and downwards to a position adjacent to a lower section of the guiding board, forming a paper insertion gap for guiding the new paper sheet to pass therethrough, such that a front end of the new paper sheet is capable of being guided downwards to contact with the guiding piece and the guiding board and to pass in between the guiding piece and the guiding board to thereby contact with the paper delivering roller, and wherein the guiding body is then pivotable rearwards back to the positioned state, completing installation of the new paper sheet.