摘要:
A transfer control method of continuous paper includes controlling a transfer amount of the continuous paper based on a rotational amount detected by a roller feeding amount detecting unit which detects the rotational amount of a paper feed roller, when each page of the continuous paper is printed, and when the printing on each page is completed, performing a cueing process of transferring the continuous paper until a printing start position of a next page reaches the printing position. The cueing process includes transferring the continuous paper until the continuous paper reaches a reference transfer position based on the feeding amount of the tractor detected by a tractor feeding amount detecting unit for detecting a feeding amount of the tractor and after the continuous paper reaches the reference transfer position, setting the transfer amount of the continuous paper as a target feeding amount.
摘要:
A printer (1) has a main pin tractor unit (11) fixedly provided interiorly of a printer housing and an auxiliary pin tractor unit (2) detachably mounted on the printer. The auxiliary pin tractor unit (2) is mounted in a position immediately above the main pin tractor unit (11) so that when the auxiliary pin tractor unit is detached from the printer, the main pin tractor unit is exposed to allow a continuous print sheet (p1) to be readily loaded on the main pin tractor unit. To selectively drive the main and the auxiliary pin tractor units with a single motor, a changeover mechanism is provided.
摘要:
A transfer control method of continuous paper includes controlling a transfer amount of the continuous paper based on a rotational amount detected by a roller feeding amount detecting unit which detects the rotational amount of a paper feed roller, when each page of the continuous paper is printed, and when the printing on each page is completed, performing a cueing process of transferring the continuous paper until a printing start position of a next page reaches the printing position. The cueing process includes transferring the continuous paper until the continuous paper reaches a reference transfer position based on the feeding amount of the tractor detected by a tractor feeding amount detecting unit for detecting a feeding amount of the tractor and after the continuous paper reaches the reference transfer position, setting the transfer amount of the continuous paper as a target feeding amount.
摘要:
A paper stacker for use with a printer which prints connected sheets that are to be stacked in a folded relationship having a surface for receiving the paper with a frame surrounding the paper that is raised in relationship to the paper in order to maintain paper within the confines of the frame as the frame moves upwardly. The frame is balanced by a constant force spring, and is indexed by optical sensors. The frame includes two adjustable fences for variously sized paper which adjustably moves with paddles to press the paper edges downwardly in the stack. Pinch rollers for driving the paper include low inertia drive rollers formed of a relatively low density plastic material with a pair of idler rollers. To improve stacking, ironing tractor idler rollers iron the tractor perforations, and chains orient the catenary stacking movement.
摘要:
A replaceable cassette (170) for a thermal printer (40) comprising: a casing (180-186) having a generally rectangular configuration and mounts (181) for positioning the cassette within a thermal printer (40) in a predetermined relationship with a thermal printing head (60) during a printing operation, a web of material (W) carrying a thermal transfer ink mounted within the casing (180-186) for advancing the web (W) and positioning different segments of the web adjacent a printing head (60) for printing. The web (W) with the thermal transfer ink has specific printing characteristics different from printing characteristics of other webs with thermal transfer inks used in thermal printers. Coding means (270) are provided on the exterior of the casing (180-186) for identifying in a machine-readable code (290-294) the specific characteristics of the web mounted within the casing.
摘要:
A printer for printing on a strip of sheet material comprising: a printing head (60) and a roller platen (58) having a cylindrical support surface on which a strip of sheet material (S) is supported for printing by the printing head (60) and for movement relative to the printing head during a printing operation. The roller platen (58) has a width between the axial ends less than the width of the strip of sheet material (S) between longitudinally extending marginal edges of the strip whereby a marginal edge portion of the strip overlaps and extends beyond each axial end of the roller platen (58). Drive means (62, 64) engage the marginal edge portion of the strip of sheet material (S) at each axial end of the roller platen (58) for feeding the strip over the roller platen relative to the printing head (60).
摘要:
An object of the present invention is to perform printing an image onto both sides of a sheet with high accuracy, even if the sheet is large. A sheet and a feeder YH are used. The sheet has perforations formed at both ends of the sheet for sheet feed, and a feeder includes a drive roller 13 and two pin tractors 14, the drive roller rotating to drive the sheet in contact with the sheet, and the pin tractors including a plurality of pins to engage the perforations and being disposed in both ends of the drive roller to rotate to drive the sheet with a coaxial rotational driving force with the drive roller. The sheet is disposed in the feeder, and, in this state, the sheet is conveyed synchronously with movement of the pins to print an image onto one side of the sheet. The sheet is turned, onto one side of which printing has been performed, inside out and is disposed in the feeder, and, in this state, the sheet is conveyed synchronously with the movement of the pins to print an image onto another side of the sheet.