摘要:
A matrix print head (9) including a plurality of printing elements (10-29) arranged in one or more straight lines is mounted for lateral movement across a print line at more than one angle. In a draft mode of operation (9) the angle is chosen to provide a greater spacing between printing elements relative to the print line than is realized in a final, or quality mode (9A) wherein the angle is chosen to provide a smaller spacing between printing elements relative to the print line. The print head operated in this manner can be for a variety of different printer types, for example, a wire matrix printer or an ink jet printer.
摘要:
In a thermal printer the transfer ribbon (2) such as one having sets of transverse color stripes is guided over a ribbon support (16) carrying the heat applying print head (17). Ribbon support (16) is movable relative to the paper (1) by an eccentric (32, 33) to move ribbon (2) into and out of contact with paper (1). A support beam (18) and a guiding roller (19) are provided immediately behind print area (3) to guide ribbon (2) away from the media path at an angle (22) of more than 45°. Color printing is performed by clamping paper and ribbon, applying heat, transferring color material, retracting the ribbon from the paper, advancing the ribbon to the next color area, printing again on the very same paper area as often as desired, repeating this as often as necessary and advancing the paper after finishing the present print line.
摘要:
A plurality of arrays of heating elements, forming printing zones (2), are arranged separated from each other a predetermined distance (SL) on a substrate (3) along a direction (X) transverse the media transport direction (Y). The heating elements in each zone (2) are arranged parallel to the transport direction (Y). The head (1) is swept back and forth relative to print line (17), a distance of SL. Releasable backing means are formed by rollers and each printing zone (2) is associated with a roller. The backing means is moved together with the head (1) for urging the print media against the thermal transfer ribbon and the latter against the multi-zone thermal print head.
摘要:
In a thermal printer the transfer ribbon (2) such as one having sets of transverse color stripes is guided over a ribbon support (16) carrying the heat applying print head (17). Ribbon support (16) is movable relative to the paper (1) by an eccentric (32, 33) to move ribbon (2) into and out of contact with paper (1). A support beam (18) and a guiding roller (19) are provided immediately behind print area (3) to guide ribbon (2) away from the media path at an angle (22) of more than 45°. Color printing is performed by clamping paper and ribbon, applying heat, transferring color material, retracting the ribbon from the paper, advancing the ribbon to the next color area, printing again on the very same paper area as often as desired, repeating this as often as necessary and advancing the paper after finishing the present print line.
摘要:
A plurality of arrays of heating elements, forming printing zones (2), are arranged separated from each other a predetermined distance (SL) on a substrate (3) along a direction (X) transverse the media transport direction (Y). The heating elements in each zone (2) are arranged parallel to the transport direction (Y). The head (1) is swept back and forth relative to print line (17), a distance of SL. Releasable backing means are formed by rollers and each printing zone (2) is associated with a roller. The backing means is moved together with the head (1) for urging the print media against the thermal transfer ribbon and the latter against the multi-zone thermal print head.
摘要:
A matrix print head (9) including a plurality of printing elements (10-29) arranged in one or more straight lines is mounted for lateral movement across a print line at more than one angle. In a draft mode of operation (9) the angle is chosen to provide a greater spacing between printing elements relative to the print line than is realized in a final, or quality mode (9A) wherein the angle is chosen to provide a smaller spacing between printing elements relative to the print line. The print head operated in this manner can be for a variety of different printer types, for example, a wire matrix printer or an ink jet printer.