Information
-
Patent Grant
-
6575090
-
Patent Number
6,575,090
-
Date Filed
Wednesday, December 26, 200122 years ago
-
Date Issued
Tuesday, June 10, 200321 years ago
-
Inventors
-
-
Examiners
- Yan; Ren
- Crenshaw; Marvin P
Agents
-
CPC
-
US Classifications
Field of Search
US
- 101 66
- 463 25
- 463 16
- 235 379
- 235 406
- 902 30
- 902 31
- 400 708
- 400 691
- 400 693
-
International Classifications
- B45L4500
- A63F1300
- G06F1760
- E05G700
-
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)