Ticket printer for gaming machines

Information

  • Patent Grant
  • 6575090
  • Patent Number
    6,575,090
  • Date Filed
    Wednesday, December 26, 2001
    22 years ago
  • Date Issued
    Tuesday, June 10, 2003
    21 years ago
Abstract
In the ticket printer, a ticket tray is mounted next to the infeed adapter of the printer mechanism for feeding blank tickets into the printer mechanism. The ticket tray is releasably mounted in a pullout module by means of a three point attachment comprising a button clip and a button pin. In another aspect of the invention, a ticket presenter has overlapping upper and lower plates defining a ticket delivery gap there between. The delivery gap has a photo sensor mounted therein, a mating bulge and cavity pair, and spikes cooperating with the bulge and cavity pair for effectively separating tickets from a strip of fan-fold tickets. In yet another feature of the present invention there is provided a communication link between the MCU and the PLD of the ticket printer for programming the PLD through the MCU using a personal computer.
Description




FIELD OF THE INVENTION




This invention pertains to ticket printers especially adapted for installation in gaming machines, and more particularly, it pertains to a ticket printer having structural and operational features that are convenient to the gaming industry.




BACKGROUND OF THE INVENTION




Ticket printers are used in the gaming industry to issue tickets to gamblers for insertion in gaming machines as a substitute for coins or paper money, or for redeeming winnings after one or more games. Generally, a printed ticket shows the amount of money won by or issued to a gambler and a code readable by a gaming machine, containing the credit limit allocated to the gambler carrying the ticket.




Examples of ticket printers used in the gaming industry are disclosed in the following documents:




U.S. Pat. No. 5,480,245, issued on Jan. 2, 1996 to John R. Martin;




U.S. Pat. No. 6,012,832, issued on Jan. 11, 2000 to Michael Saunders et al.;




U.S. Pat. No. 6,014,594, issued on Jan. 11, 2000 to Raymond J. Heidel et al.




U.S. Pat. No. 6,048,269, issued on Apr. 11, 2000 to James G. Burns et al.




U.S. Pat. No. 6,280,326, issued on Aug. 28, 2001 to Michael Saunders.




Although the ticket printers of the prior art deserve undeniable merits, it is believed that there is still a need in the gaming industry for a ticket printer which is easy to maintain, which can reliably dispense tickets with clean edges and which can be programmed using a remote computer.




SUMMARY OF THE INVENTION




The present invention provides a ticket printer which is easy to maintain and to refill with blank tickets, which is efficient in separating and delivering tickets from a stack of fan-fold tickets and which is programmable on line via the Internet.




In accordance with one feature of the present invention, there is provided a ticket printer comprising a chassis and a pullout module movably mounted in the chassis. The pullout module has a front end, a rear end and a latch member in an intermediate region thereof. The pullout module also has a shoulder on the rear end thereof and a pair of slots in that shoulder. A printer mechanism is mounted in the pullout module. The printer mechanism has an inlet side facing the rear end, and a delivery side facing the front end. An infeed adapter is mounted on the inlet side. A ticket presenter is mounted on the delivery side. A ticket tray is mounted between the rear end and the infeed adapter for feeding blank tickets into the infeed adapter and the printer mechanism. The ticket tray has a pair of straight tabs extending rearwardly into the aforesaid slots and a clip releasably engaged with the latch member.




The ticket tray is thereby easily removed from the pullout module for the purpose of filling it with a stack of blank tickets or for replacement thereof with a full tray, by releasing the clip from the latch member and sliding the tabs out of the slots.




In another aspect of the present invention, the ticket printer comprises a pair of telescoping slide rails mounted between the pullout module and the chassis, whereby the pullout module is movable relative to the chassis. A control circuit is mounted in the pullout module and a communication circuit is mounted on the chassis. The control circuit is connected to the communication circuit by a ribbon cable. The ribbon cable has a length which is at least twice as long as a convenient elongation extent of the telescoping slide rails. The ribbon cable is affixed to the chassis over a distance of about one half its length and has a sharp bend defining this distance. The other half of the ribbon cable is free to roll over itself following the movement of the pullout module. This arrangement is advantageous for allowing movement of the pullout module relative to the chassis without applying adverse stress on the ribbon cable.




In a further aspect of the present invention, the ticket presenter comprises overlapping upper and lower plates defining a ticket delivery gap there between. A photo sensor is mounted into one of the upper and lower plates and has a light beam extending across the delivery gap. The leading edge of a ticket moving along the delivery gap is detectable by the photo sensor for the purpose of defining the position of that ticket during or prior to printing.




In yet another aspect of the present invention, the delivery gap of the ticket presenter has a curvature therein adjacent the delivery side of the printer mechanism. A mating bulge and cavity pair is formed in the delivery gap adjacent the curvature. A pair of spikes located near the delivery side of the printer mechanism along the curvature point across the delivery gap. The mating bulge and cavity pair has a width which is about one third of the width of the delivery gap. The distance between the spikes and the mating bulge and cavity pair along the curvature is about the same distance as the width of the bulge and cavity pair. Each of these elements and dimensions contributes to the efficient separation of tickets from a continuous strip of fan-fold ticket blanks having perforated tear lines between the tickets.




Yet in a further feature of the present invention there is provided a ticket printer having a micro controller unit and a programmable logic device. A JTAG port is connected to the programmable logic device for allowing the programming of the programmable logic device using a PLD programmer. A communication parallel, serial or USB port is connected to the micro controller unit for allowing the programming of the micro controller unit using a personal computer. A communication link is provided between the micro controller unit and the programmable logic device for programming the programmable logic device through the micro controller unit using a personal computer. This communication link between the micro controller unit and the programmable logic device is advantageous for allowing the programming or reprogramming of the ticket printer from a remote location, such as through the Internet for example.











BRIEF DESCRIPTION OF THE DRAWINGS




One embodiment of the present invention is illustrated in the accompanying drawings, in which like numerals denote like parts throughout the several views, and in which:





FIG. 1

is a front, right side and top perspective view of the ticket printer according to the preferred embodiment;





FIG. 2

is a front, right side and top perspective view of the pullout module comprised in the ticket printer;





FIG. 3

is a rear, right side and bottom perspective view of the pullout module comprised in the ticket printer;





FIG. 4

is a cross-section view of the ticket printer, as viewed along line


4





4


in

FIG.1

;





FIG. 5

is a cut-away side view of the ticket printer with the pullout module partly drawn out of the chassis;





FIG. 6

is a front, top and right side perspective view of the ticket tray mountable in the ticket printer according to the preferred embodiment;





FIG. 7

is a rear, top and right side perspective view of the ticket tray;





FIG. 8

is a front view of the button pin and button clip holding the ticket tray in place in the pullout module;





FIG. 9

is a partial top view of the ticket printer according to the preferred embodiment;





FIG. 10

is an enlarged view of the structural details shown in the detail circle


10


in

FIG. 9

;





FIG. 11

is an enlarged view of the structural details shown in the detail circle


11


in

FIG. 4

, and generally along the cross-section line


11


, in

FIG. 10

;





FIG. 12

is a plan view of the circuit guard plate;





FIG. 13

is a front, right side and top perspective view of the circuit guard plate;





FIG. 14

is a right side view of the printer mechanism and the infeed adapter assembly;





FIG. 15

is a front, right side and top perspective view of the infeed adapter;





FIG. 16

is a rear, left side and top perspective view of the infeed adapter;





FIG. 17

is a front, right side and top perspective view of the ticket presenter;





FIG. 18

is a cross-section view of the ticket presenter as seen along line


18





18


in

FIG. 17

;





FIG. 19

is a cross-section view of the ticket presenter as seen along line


19





19


in

FIG. 17

or in

FIG. 18

;





FIG. 20

is a partial plan view of two adjacent tickets, showing on the left, transposed relevant dimensions of the ticket presenter, and on the right, relevant dimensions of the tear line between adjoining tickets;





FIG. 21

is a schematic diagram of the electronic controls comprised in the preferred ticket printer.











DESCRIPTION OF THE PREFERRED EMBODIMENT




While this invention is susceptible of embodiments in many different forms, there is shown in the drawings and will be described in details herein one specific embodiment of the present invention, with the understanding that the present disclosure is to be considered as an example of the principles of the invention and is not intended to limit the invention to the embodiment illustrated and described.




Referring to the

FIGS. 1-5

, the ticket printer


30


according to the preferred embodiment comprises broadly; a printer mechanism


32


having an inlet side and a delivery side; an infeed adapter


34


mounted to the inlet side; a ticket presenter


36


mounted to the delivery side; a pullout module


38


enclosing the printer mechanism, the infeed adapter, the ticket presenter, and a ticket tray


40


mounted adjacent the infeed adapter


34


. The preferred ticket printer also comprises a communication circuit


42


, and a chassis


44


in which the pullout module is movably mounted. The communication circuit


42


is mounted at the rear end of the chassis


44


. The ticket presenter


36


defines the front end of the ticket printer


30


. The printer mechanism


32


is controlled by a circuit board


46


, which is mounted under the ticket tray


40


and which is connected to the communication circuit


42


by a ribbon cable


48


.




The control circuit board


46


is mounted over the bottom wall of the pullout module


38


, and is covered by a guard plate


54


, referred to herein as the circuit guard plate.




In use, the blank tickets


50


are supplied to the printer mechanism


32


from a stack


52


of continuous tickets separable from each other by means of a transverse tear line


56


between adjacent tickets. The transverse tear line


56


is illustrated in FIG.


20


. These tickets are often referred to as fan-fold tickets.




Having briefly described all the major components of the preferred ticket printer


30


, the functions and structural features of these components will now be described in more details.




Printer Mechanism




The printer mechanism


32


is a thermal printer unit known in the industry as an Axiohm Atom MHTP(


2


)™ printer mechanism. This printer mechanism does not constitute the essence of the present invention and therefore is not described in more details herein.




Chassis




The chassis


44


is made of bent sheet metal and has a rectangular box-like shape. The chassis is mountable into the housings of a variety of gaming machines, by various means which have not been illustrated herein for not being essential to the present invention.




Pullout Module




The pullout module


38


is movably mounted inside the chassis


44


by means of a pair of slide rails


52


which can be seen in

FIGS. 2 and 5

. The slide rails


52


are of the telescoping type and have a convenient elongation extent labelled as ‘A’ in

FIG. 5

for reference purposes. This convenient elongation extent ‘A’ is the distance at which the pullout module


38


must be pulled out of the chassis


44


for easily filling or replacing the ticket tray


40


and for inserting a leading ticket into the infeed adapter


34


. It will be appreciated that the pullout module


38


can also be drawn out clear of the chassis


44


for maintenance purposes.




The pullout module


38


is retainable in the open position by a pair of latch tabs


58


which are illustrated in

FIGS. 2

,


3


,


4


and


5


. The latch tabs


58


engage with the front edge


60


of the chassis


44


, as shown in

FIG. 5

when the pullout module


38


is open the distance ‘A’ as also illustrated in FIG.


5


. This feature is particularly appreciable when the ticket printer


30


is mounted along an angle with the front end thereof facing upward, as it is often the case with the ticket printers of gaming machines.




Referring particularly to

FIGS. 3 and 5

, the latch tabs


58


are normally urged outwardly by respective leaf springs


62


affixed to a pair of base blocks


63


which are mounted to the bottom surface


64


of the pullout module


38


. Cam plates


66


are connected to the latch tabs


58


by link members


67


, and to tendons


68


. The tendons


68


extend toward the front end of the pullout module


38


and though a guide bearing


69


. The tendons


68


terminate into a common handle


70


located underneath the front end of the pullout module


38


. In use, the handle


70


is pulled toward the front end of the pullout unit


38


to cause the cam plates


66


to slide forward against the base blocks


63


and to pull the latch tabs


58


inwardly, allowing the pullout unit


38


to be retracted inside the chassis


44


.




In the illustration of

FIG. 5

, the pullout module


38


is drawn out of the chassis


44


a distance corresponding to the convenient elongation extent ‘A’. In this illustration, it will be appreciated that the ribbon cable


48


is at least twice as long as the convenient elongation extent ‘A’. The ribbon cable


48


has a straight portion


72


laid against the bottom wall of the chassis


44


, which straight portion extends a distance ‘B’ from a rear end of the chassis


44


. The ribbon cable


48


has a sharp bend


74


formed therein, defining the dimension ‘B’. The distance ‘A’ is a similar distance as the length ‘B’ of the straight portion


72


of the ribbon cable


48


such that there is no bending or fatigue stress applied to the sharp bend


74


when the pullout module


38


is drawn out of the chassis


44


, to the convenient elongation extent. Connectors


76


at both ends of the ribbon cable


48


can be disconnected from the communication circuit


42


and from the control circuit board


46


, respectively when the pullout module


38


needs to be removed from the chassis


44


for replacement or for major repair.




Ticket Tray




Referring now to

FIGS. 6-8

,


12


and


13


, the ticket tray


40


, the circuit guard plate


54


and the attachment of the two components to the pullout module will be described in details. The ticket tray


40


is rectangular in shape and has side walls which are sufficiently high to contain a stack of tickets for a convenient period of operating time. The ticket tray


40


is removably retained to the pullout module


38


by means of a three-point attachment which consists of a button clip


80


at the front end thereof and a pair of straight tabs


82


,


84


extending at the rear end thereof. The button clip


80


attaches to a button pin


86


which is fastened to a threaded insert


88


as shown in

FIGS. 4 and 8

, which in turn is fastened to the bottom wall of the pullout module


38


. A finger tab


90


is provided on the front end of the ticket tray


40


to facilitate the releasing of the clip


80


from the button pin


86


.




Both tabs


82


,


84


are insertable into a pair of slots


92


,


94


in a rear shoulder


96


on the circuit guard plate


54


, as shown in FIG.


13


. Thus, the ticket tray


40


is removable from the pullout module


38


by simply pulling it upward out of the button pin


86


and then forward out of the engagement of the tabs


82


,


84


from the slots


92


,


94


.




This ticket tray


40


is particularly advantageous for being easily removed from the pullout module


38


for the purpose of filling it with a full stack of blank tickets, or for replacing it with a full ticket tray when empty. It will be appreciated that several ticket trays


40


may be kept for a same ticket printer


30


, with each tray containing tickets for a different game or for a different day of the week for example. The appropriate ticket tray can then be installed or removed from the ticket printer in a short time whenever a new game is played with the gaming machine in which the preferred ticket printer


30


is installed.




Circuit Guard Plate




Referring now to FIGS.


4


and


9


-


13


, there are illustrated therein various structural details of the circuit guard plate


54


covering the control circuit board


46


. The rear shoulder


96


on the circuit guard plate


54


has tabs


100


,


102


which are insertable into corresponding notches


104


along the rear end of the side walls


106


of the pullout module


38


. The front end of the circuit guard plate


54


has a hole


108


therein the size of which corresponds to the inside diameter of the threaded insert


88


. The front end of the circuit guard plate


54


is removably retained to the threaded insert


88


by the threaded engagement of the button pin


86


into the threaded insert


88


as shown in FIG.


8


. The rear end of the circuit guard plate is removably retained to the side walls


106


of the pullout module


38


by the engagement of the tabs


100


,


102


into the notches


104


. The guard plate


54


is thereby easily removed in a same way as for the previously explained ticket tray


40


, for exposing the control circuit board


46


.




Infeed Adapter




Referring now to

FIGS. 14-16

, the infeed adapter


34


is illustrated therein in three views. The infeed adapter


34


is preferably moulded in one piece with plastic material. In its preferred configuration, the infeed adapter


34


has two alignment pins


110


and one threaded insert


112


for attachment thereof to the printer mechanism


32


. The infeed adapter


34


further has position pins


114


extending from the lower side thereof, and threaded inserts


116


and screws


118


in its sides for retaining the printer mechanism


32


and the infeed adapter


34


assembly to the bottom and side walls of the pullout module


38


. One of the screws


118


is illustrated in

FIGS. 2 and 5

.




A series of upper fingers


120


and lower fingers


122


define a tapering opening for feeding the tickets to the printer mechanism


32


. The tapering opening


124


has a preferred gap size ‘C’ of at least 0.125 inch (3 mm) such that is relatively easy for an operator to feed a leading ticket into the printer mechanism


32


.




Ticket Presenter




The ticket presenter


36


is fastened to the pullout module


38


by means of two pairs of pins


130


,


132


engaged into corresponding openings


134


,


136


in the side walls of the pullout module


38


as can be seen in

FIGS. 2-5

,


17


and


19


. The ticket presenter


36


, has a ticket delivery spout


138


which protrudes into or otherwise aligns with a rectangular opening


140


through the front wall


142


of the pullout module


38


as illustrated in

FIGS. 1-4

.




The ticket presenter


36


consists of an upper plate


144


and a lower plate


146


which are mounted against each other leaving a ticket delivery gap


148


there between through which the tickets are fed out of the printer mechanism. The forward edges of the upper and lower plates


144


,


146


and the gap


148


constitute the ticket delivery spout


138


.




A photo sensor and diode assembly


150


, hereinafter referred to as the photo sensor, is mounted in the lower plate


146


, of the ticket presenter


36


, for sensing the leading edge of a ticket being fed through the delivery gap


148


. The upper plate


144


has a cavity


152


therein extending above the photo sensor


150


a distance above the focal point


154


of the photo sensor


150


, such that the photo sensor does not receive any reflection other than from the leading edge of a ticket moving along the delivery gap


148


.




In use, prior to printing a ticket, the leading edge of a blank ticket is detected by the photo sensor


150


; the feeding motion of the printer mechanism stops and the ticket is retracted a programmed distance to align the printing mechanism


32


with the exact location of the prescribed first print line on the ticket. Then, printing of the ticket is initiated.




The ticket presenter


36


further has a mating bulge


156


and cavity


158


pair adjacent an upper curvature


160


in the upper plate


144


, and a pair of spaced-apart spikes


162


in the lower plate


146


to facilitate the tearing of a ticket fed through the ticket delivery gap


148


. The preferred width ‘D’ of the bulge and cavity pair


156


,


158


is about one third the width ‘E’ of a ticket being fed through the ticket presenter, as shown in FIG.


19


.




For more clarity, the positions of the spikes


162


are shown in dashed lines and are labelled as


162


′ in the illustration of FIG.


20


.

FIG. 20

also illustrates the interaction between the spikes


162


and the bulge and cavity pair


156


,


158


.




The spikes


162


are located in a central portion of the ticket presenter and extend into the ticket delivery gap


148


. The position of the spikes


162


overlap or lie within the deformation footprint


164


created by the bulge and cavity pair


156


,


158


when the ticket


50


is fed out of the printer mechanism.




Referring again to

FIG. 20

, the tear line


56


between two tickets


50


consists of six spaced-apart tendons


170


separating open slits


172


,


174


and


178


. The preferred width ‘F’ of each tendon is about 0.030 inch (0.75 mm) on a ticket strip having a width ‘E’ of about 2.56 inch (65 mm). The central slit


172


has a preferred width ‘G’ of about 0.32 inch (8 mm). The next intermediate slits


174


have a respective width ‘H’ of about 0.5 inch (12.7 mm). The preferred paper thickness for the ticket strip is about 0.004 inch (0.1 mm);(10M/20 lb).




The deformation footprint


164


of the bulge and cavity pair


156


,


158


is illustrated in FIG.


20


and encompasses the central slit


172


and the two intermediate slits


174


. The deformation footprint


164


of the bulge and cavity pair


156


,


158


also encompasses the position of the spikes


162


′.




Each spike


162


is slightly narrower than one of the intermediate slits


174


. Both spikes


162


are aligned with these intermediate slits


174


, such as to engage with the intermediate slits


174


, when the ticket strip is pulled out of the ticket presenter


36


.




The deformation footprint


164


in a leading ticket


50


caused by the bulge and cavity pair


156


,


158


, while the next ticket


50


is held straight in the printer mechanism


32


, causes the tendons


170


bordering the central slit


172


to break, thereby opening the central and intermediate slits


172


,


174


as a single cut.




The spikes


162


are located immediately below and extend toward the upper curvature


160


in the upper plate


144


, as shown in FIG.


17


. The curvature


160


in the upper plate


144


has an arc length ‘J’ following the spikes


162


which is substantially the same as the width ‘D’ of the deformation footprint


164


. This dimension ratio has been found advantageous for effectively breaking the central tendons and for causing the spikes


162


to grab the tear line


56


.




When the ticket


50


is pulled out of the ticket presenter


36


in the direction of arrow


180


in

FIG. 20

, the ticket


50


is forced to slide with a certain pressure against the apexes of the spikes


162


. The deformation


164


of the ticket due to the bulge and cavity pair


156


,


158


, the curvature


160


in the upper plate and the positions of the spikes


162


relative to the curvature


160


and to the bulge and cavity pair


156


,


158


, cooperate to cause the spikes


162


to grab against the slits


174


in the tear line. A further pulling on the ticket


50


causes the tear line


56


to separate completely.




Both spikes


162


have an inclined rear surface


182


as seen in

FIG. 18

, such that a ticket


50


being fed through the printer mechanism is guided freely into the ticket delivery gap


148


and along the curvature


160


.




The structural features of this ticket presenter


36


make it particularly easy to tear off the leading ticket


50


from a strip of fan-fold tickets


52


, starting at the centre of a tear line and progressing outwardly such that the tear line remains clean.




Electronic Controls.




The electronic controls of the ticket printer


30


comprise the communication circuit


42


and the control circuit


46


as mentioned before. One of these circuits comprises a micro controller unit MCU. A programmable logic device PLD is also part of that control circuitry. The programmable logic device is connected to a JTAG port


190


for the purpose of being programmable using PLD programmer. The micro controller unit is connected to one or more standard communication parallel, serial or USB ports


192


for the purpose of programming the PLD using a host computer, as will be explained below. The micro controller unit is also connected to the JTAG port


190


by way of a communication link


194


for the purpose of communicating programming instructions to the PLD through the micro controller unit. The standard communication ports


192


are mounted through the wall of the pullout module such that no disassembly of the module is required to program the PLD.




The communication link


194


and a communication protocol have been provided between the micro controller unit, the communication ports


192


and the JTAG port


190


to allow the transmission of programming commands from the micro controller unit to the programmable logic device. It will be appreciated that the communication link


194


and the communication protocol enable the programming, reprogramming or troubleshooting of the programmable logic device through the standard communication port of a host computer or via the Internet or any other network through a remote computer.




It will be appreciated that the electronic controls also contain a number of switches and sensors which have not been described herein for being generally known in the field of printing machines. These switches and sensors may include for examples; a paper low sensor, limit switches for monitoring the movements of the pullout module, a ticket tray position sensor or a bar code reader.




As to other manner of usage and operation of the present invention, the same should be apparent from the above description and accompanying drawings, and accordingly further discussion relative to the manner of usage and operation of the invention would be considered repetitious and is not provided.




While one embodiment of the present invention has been illustrated and described herein above, it will be appreciated by those skilled in the art that various modifications, alternate constructions and equivalents may be employed without departing from the true spirit and scope of the invention. Therefore, the above description and the illustrations should not be construed as limiting the scope of the invention which is defined by the appended claims.



Claims
  • 1. A ticket printer comprising a chassis and a pullout module movably mounted in said chassis, said pullout module comprising:a front end, a rear end and a latch member mounted to an intermediate region thereof; a shoulder on said rear end and a slot in said shoulder; a printer mechanism mounted thereto and having an inlet side facing said rear end and a delivery side facing said front end; an infeed adapter mounted on said inlet side; a ticket presenter mounted on said delivery side, and a ticket tray mounted between said rear end and said infeed adapter for feeding tickets into said infeed adapter and said printer mechanism, said ticket tray having a straight tab extending rearwardly into said slot and a clip releasably engaged with said latch member; such that said ticket tray is removable from said pullout module for filling said ticket tray with tickets, by releasing said clip from said latch member and sliding said tab out of said slot.
  • 2. The ticket printer as claimed in claim 1, wherein latch member is a button pin and said clip is a button clip.
  • 3. The ticket printer as claimed in claim 1, further comprising a slide rail mounted between said pullout module and said chassis.
  • 4. The ticket printer as claimed in claim 3, further comprising a control circuit mounted in said pullout module and a communication circuit mounted on said chassis, and said control circuit being connected to said communication circuit by a ribbon cable.
  • 5. The ticket printer as claimed in claim 4, wherein said rail has a convenient elongation extent and said ribbon cable has a length which is at least twice said convenient elongation extent.
  • 6. The ticket printer as claimed in claim 5, wherein said ribbon cable is affixed to said chassis over a distance of about one half said length and has a sharp bend defining said distance.
  • 7. The ticket printer as claimed in claim 5, wherein said pullout module further comprises a latch tab having means to engage with said chassis for retaining said pullout module at said convenient elongation extent relative to said chassis, and means for manually disengaging said latch tab from said chassis.
  • 8. The ticket printer as claimed in claim 1, wherein said infeed adapter comprises two alignment pins and a screw retaining said printer mechanism thereto.
  • 9. The ticket printer as claimed in claim 1, further comprising a control circuit mounted under said ticket tray and a circuit guard plate mounted between said control circuit and said ticket tray, and said circuit guard plate being affixed to said pullout module by a tab and slot engagement and by said latch member.
  • 10. The ticket printer as claimed in claim 8, wherein said infeed adapter has a tapering opening having a gap size of at least 0.125 inch.
  • 11. The ticket printer as claimed in claim 1, wherein said ticket presenter comprises overlapping upper and lower plates defining a ticket delivery gap there between, and a photo sensor mounted to one of said upper and lower plates and having a light beam extending across said delivery gap.
  • 12. The ticket printer as claimed in claim 1, further comprising:a micro controller unit; a programmable logic device; a JTAG port connected to said programmable logic device for programming said programmable logic device using a PLD programmer; a communication port selected from a parallel, a USB and a serial port connected to said micro controller unit for transmitting programming commands to said micro controller unit using a host computer, and a communication link between said micro controller unit and said programmable logic device for transmitting programming commands to said programmable logic device through said micro controller unit using a host computer.
US Referenced Citations (11)
Number Name Date Kind
3791291 Macune et al. Feb 1974 A
5010240 Sheldon Apr 1991 A
5480245 Martin Jan 1996 A
5782567 Endo Jul 1998 A
5980138 Shiozaki et al. Nov 1999 A
6012832 Saunders et al. Jan 2000 A
6014594 Heidel et al. Jan 2000 A
6048269 Burns et al. Apr 2000 A
6082616 Lewis et al. Jul 2000 A
6280326 Saunders Aug 2001 B1
6471590 Saunders Oct 2002 B2