摘要:
Methods, apparatuses, systems, computing devices, and/or the like are provided. An example method may include a printer assembly. An example printer assembly may include a printer ribbon drive mechanism. An example printer drive mechanism may include a drive wheel, a connector, a spring, and an actuator. An example actuator may be configured to translate from a first axial position to a second axial position. An example spring may be configured to apply a greater force when an actuator is disposed in the first axial position than when the actuator is disposed in the second axial position. The example method may also include a motor to apply a torque to a drive wheel.
摘要:
The disclosure discloses a printer including a memory. The memory stores computer-executable instructions that, when executed by a processor, cause the printer to perform a first process, a second process, and a third process. In the first process, an N-th determination target value is calculated, from an N-th pulse count index value and an (N+1)th pulse count index value. In the second process, a mean value of a plurality of consecutive pulse count index values within a predetermined range is calculated. In the third process, a comparison value is calculated by comparing (N−1)th the determination target value with the mean value. The first process to the third process are performed while increasing N one by one. A first determination step includes determining whether the elongated medium has reached a consumption completion status or not, on the basis of a magnitude relation between the comparison value and a first threshold value.
摘要:
A ribbon drive assembly for optimizing the tension across a ribbon supply in a thermal transfer printer comprising a supply spindle and a take up spindle operable for cooperating with each other such that the ribbon supply is fed from the supply spindle through a print station and metered onto the take up spindle. Each spindle is provided with and connected to a motor, a plurality of gears, and a rotary encoder such that the spindles may be independently controlled by a control processor. The control processor is operable for monitoring, detecting, and controlling the operation of the motors and spindles. During operation and in order to maintain a constant ribbon tension, the torque on the motors are continuously adjusted in accordance with various data provided by the printer's processor.
摘要:
An apparatus for driving and tensioning a ribbon includes a supply spindle for supplying a ribbon, a supply dancer assembly for applying tension to the ribbon, a printhead, a take-up dancer assembly for applying tension to the ribbon, and a take-up spindle for collecting spent ribbon. The supply dancer assembly is positioned downstream of the supply spindle. The printhead is positioned downstream of the supply dancer assembly. The take-up dancer assembly is downstream of the printhead. The take-up spindle is downstream of the take-up dancer assembly.
摘要:
An ink sheet cartridge and method of assembly for an ink sheet cartridge including a cartridge body rotatably supporting four spools. The spool includes a first rotation member having a transmission gear and a shaft member having a flange. The first rotation member is undetachably engaged with the shaft member within a support hole formed to the cartridge body while interposing a side plate between the transmission gear and the flange. An intermediate connector includes resilient pawls and projections for engaging respective mating groves and locking grooves formed to a takeup-side core tube, and is engaged with the flange of the shaft member 48.
摘要:
A unitary ink sheet cartridge body has a pair of side plates, a partitioning plate, and a cover segment together defining a frame shape with an central open space. The partitioning plate has at least two recesses in an edge facing away from the open center. An ink sheet set is mounted in the ink sheet cartridge body.
摘要:
An ink sheet cartridge includes a cartridge body 30 rotatably supporting four spools 36, 37, 38, 39. The spool 38 includes a first rotation member 56 having a transmission gear 47 and a shaft member 48 having a flange 48a. The first rotation member 46 is undetachably engaged with the shaft member 48 within a support hole 50 formed to the cartridge body 30 while interposing a side plate 51a between the transmission gear 47 and the flange 48a. An intermediate connector 46 includes resilient pawls 59 and projections 61 for engaging respective mating grooves 60 and locking grooves 62 formed to a takeup-side core tube 41, and is engaged with the flange 48a of the shaft member 48.
摘要:
A pulley tensioner for applying torque or tension to a pulley includes a spring system configured to encircle the periphery of the pulley. The spring system is anchored to the pulley housing or some other fixed location. The spring system is made up of one or more coil springs which are wrapped around the periphery of the pulley. Where multiple springs are used, preferably each spring has a different spring constant and length. This allows the operator to select the desired tension depending upon the operating parameters of the printer. The applied tension may be further modified/tuned by using an additional spring member to anchor the spring system to the pulley housing or some other fixed location.
摘要:
A ribbon supply apparatus including a support in which a ribbon supply spool and a take-up spool are rotatably mounted. The supply and take-up spools and the support are designed so that these spools can be mounted in the support in only one way, the correct way. The ribbon is supplied on a tubular core member which is mounted on a cylindrical member which is part of the supply spool. The ribbon supply spool has a large gear thereon which is used in a braking and feeding mechanism which is used to incrementally feed the ribbon to a print station associated with the apparatus. The ribbon take-up spool is identical to the ribbon supply spool, but the ribbon take-up spool is mounted in a reversed manner when compared to the ribbon supply spool. A driving gear, coupled to the large gear on the take-up spool is part of the braking and feeding mechanism which also includes a "dancer arm". The dancer arm controls a loop of ribbon which is fed to the print station. A metering roller is used in providing a predetermined amount of ribbon to the print station by enabling the take-up spool to pull ribbon from the loop of ribbon.
摘要:
In medium to high volume printers using more than one print head, multiple documents may be printed side by side in one pass. Multiple rolls of ribbon are utilized on the ribbon mandril to accommodate the documents. The ribbon is kept taut across its print head by the feed system controller. When the outside diameters of the two rolls of ribbon vary, the system keeps one ribbon taut and the other tends to go slack at the print head. A split sleeve mandril with a differential mechanism connecting the two sleeves of the mandril assures that both ribbons are maintained taut. The preferred differential mechanism may be a planetary gear arrangement, or a thrust bearing arrangement. A unique ribbon roll holding mechanism, to hold the ribbon roll at the selected place on the mandril is also provided.