Method and system of determining a width of a printer ribbon
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B41J-015/02
B41J-011/00
출원번호
US-0274573
(2016-09-23)
등록번호
US-9931867
(2018-04-03)
발명자
/ 주소
Yap, Yaw Horng
Soh, Teck Siong
Lim, Boon Kheng
Harinarayanan, Aravindkumar
출원인 / 주소
Datamax-O'Neil Corporation
대리인 / 주소
Additon, Higgins & Pendleton, P.A.
인용정보
피인용 횟수 :
1인용 특허 :
235
초록▼
A printer ribbon supply spindle assembly is provided. The ribbon spindle has multiple segments contiguous to each other. The spindle assembly includes a commutator disposed circumferentially on the first segment of the ribbon spindle and two carbon brushes connected to a voltage source and disposed
A printer ribbon supply spindle assembly is provided. The ribbon spindle has multiple segments contiguous to each other. The spindle assembly includes a commutator disposed circumferentially on the first segment of the ribbon spindle and two carbon brushes connected to a voltage source and disposed generally in electrical contact with and on either side of the commutator. The voltage source, the carbon brushes, and the commutator complete an electrical circuit. C-shaped conductive springs are disposed over each of the multiple segments. The c-shaped conductive springs compress when covered by a printer ribbon and become in electrical contact with the commutator and adjacent compressed c-shaped springs, forming additional parallel circuits. An electronic element is disposed at the center of the c-shaped conductive springs. Measuring a change in the circuit due the additional parallel circuits with the electronic element indicates the printer ribbon width.
대표청구항▼
1. A printer spindle assembly, comprising: multiple segments, the first segment of the multiple segments being adjacent to a base, each subsequent segment of the multiple segments being adjacent to the previous segment of the multiple segments;a commutator, the commutator being disposed circumferent
1. A printer spindle assembly, comprising: multiple segments, the first segment of the multiple segments being adjacent to a base, each subsequent segment of the multiple segments being adjacent to the previous segment of the multiple segments;a commutator, the commutator being disposed circumferentially on the first segment of the spindle;at least two brushes, the brushes being connected to a voltage source, disposed generally on either side of the commutator, and in electrical contact with the commutator, wherein the voltage source, the brushes, and the commutator form a closed electrical circuit;a c-shaped conductive spring disposed on each of the multiple segments;wherein the c-shaped conductive spring has two ends and a center portion;wherein the c-shaped conductive springs are in an uncompressed state in the absence of a printer ribbon over the one or more c-shaped conductive springs; andwherein the c-shaped conductive springs are in a compressed state in the presence of a printer ribbon positioned over the one or more c-shaped conductive springs. 2. The printer spindle assembly of claim 1, wherein the c-shaped conductive springs are metallic. 3. The printer spindle assembly of claim 1, wherein the c-shaped conductive spring on each segment of the multiple segments has a length such that when the c-shaped conductive spring is in the compressed state, the two ends of the c-shaped conductive spring make electrical contact with the commutator or the c-shaped conductive spring of a previous segment completing an additional electrical circuit in parallel with the closed electrical circuit. 4. The printer spindle assembly of claim 3 wherein a basic electronic element is disposed proximate to the center portions of each of the c-shaped conductive springs and in electrical contact with the center portion of the c-shaped conductive springs. 5. The printer spindle assembly of claim 4, wherein the basic electronic element is a resistor. 6. The printer spindle assembly of claim 4, wherein the basic electronic element is a dielectric material. 7. The printer spindle assembly of claim 6, wherein the center portion of the c-shaped conductive springs is comprised of two conductive plates and a dielectric material; the conductive plates being on either side of the dielectric material; the conductive plates coming in contact with the dielectric material based upon the c-shaped conductive springs being compressed. 8. The printer spindle assembly of claim 4, wherein each additional circuit includes the basic electronic element. 9. The printer spindle of claim 4, wherein the basic electronic element is a resistor; the printer spindle assembly further comprising a meter, the meter being connected to the closed electrical circuit; and wherein the meter reads the resistance of the completed circuits. 10. The printer spindle of claim 4, wherein the basic electronic element is a dielectric material; the printer spindle assembly further comprising a meter, the meter being connected to the closed electrical circuit; and wherein the meter reads capacitance changes in the circuits completed. 11. The printer spindle assembly of claim 3, further comprising a meter, the meter connected to the closed electrical circuit, such that the reading on the meter indicates how many additional parallel circuits are completed. 12. The printer spindle assembly of claim 11, further comprising a processor communicatively linked to the meter, the processor being configured to determine a width of a ribbon roll loaded on the printer spindle based upon a reading on the meter and to implement printer functions based upon the reading on the meter. 13. The printer spindle of claim 8, wherein the processor is further configured to send information on the width of the ribbon roll loaded on the spindle to a display. 14. The printer spindle of claim 8, wherein the printer functions include torque requirements of the printer. 15. A method, comprising: loading a printer media on a spindle;providing, on a base segment of a spindle, a commutator electrically in contact with two brushes disposed on either side of the commutator;forming a closed electrical circuit by connecting the two brushes to a voltage source;providing compressible conductive elements on each of multiple segments on the spindle;compressing one or more of the compressible conductive elements under the printer media, the compressible conductive elements when compressed being in electrical contact with each other and with the closed electrical circuit, forming additional completed parallel electrical circuits with the closed electrical circuit;measuring a change in electrical properties of the closed electrical circuit due to the additional completed parallel electrical circuits;determining, based upon the measured change, how many compressible conductive elements are compressed under the loaded printer media; anddetermining a printer media width from the determination of the number of compressible conductive elements being compressed under the loaded printer media. 16. The method of claim 15, wherein the media is selected from a ribbon, a label, a receipt, and a thermal transfer ribbon. 17. The method of claim 16, wherein the measuring step is accomplished with an electrical meter sensitive to the electrical properties of the basic electronic element. 18. The method of claim 15, further comprising the step of providing the compressible conductive elements with a basic electronic element. 19. The method of claim 18, wherein the basic electronic element is a dielectric material; and the measuring step measures a change in capacitance. 20. The method of claim 18, wherein the change in electrical properties measured in the measuring step are due to the basic electronic elements included in the completed additional parallel circuits formed by the compressing step. 21. The method of claim 18, wherein the basic electronic element is a resistor. 22. The method of claim 21, wherein the measuring step measures a change in resistance. 23. The method of claim 15, further comprising the step of displaying the media width determined in the second determining step on a display. 24. The method of claim 15, further comprising the step of implementing printer functions based upon the media width determined in the second determining step. 25. The method of claim 24, wherein the printer functions include torque requirements.
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