Field of the Invention
[0001] This invention relates to a portable electronic hand labeller which employs thermal
printing. This invention particularly relates to a specialized electronic printing
device which can be conveniently carried and is suited to in-store price marking,
comprising the printing of a price bar code on a label or tag, the affixing of the
label or tag to items of merchandise and, when the merchandise is sold, the use of
an optical reader means or the like to read the price bar code.
[0002] Generally, stationary desktop type printers are used for this type of thermal printing.
However, because such printers are large and heavy, the merchandise has to be brought
to where the printer is, but this having to bring the merchandise to where the desktop
printer is and then attaching the label is very inefficient.
[0003] Portable label printing and attaching devices (which are usually termed "hand labellers")
are used in place of the aforesaid desktop printers, but with such hand labellers
it is easy for errors to arise in such data input settings as prices, check digits
and the like, and as such they have the defect of not being able to provide perfect
printing, especially with respect to bar code printing where printing precision is
demanded.
[0004] In view of the foregoing, this invention provides a thermal-printing electronic hand
labeller which incorporates just the good points of the aforesaid desktop printers
and hand labellers to provide good working efficiency and high precision.
DESCRIPTION OF THE PRIOR ART
[0005] In construction, conventional thermal-printing electronic hand labellers employ a
system whereby rollers which engage with or pull a strip-shaped backing sheet to which
are provisionally attached thermal labels are coupled to a motor by means of which
the strip-shaped backing sheet is forcibly paid out toward the rear of the main unit.
[0006] That system refers to an ordinary label-by-label supply type of arrangement. Label-by-label
supply arrangement as herein used refers to a plurality of thermally-printed labels
provisionally affixed to a strip-shaped backing sheet which are peeled off at a sheet
bending pin portion provided at the front of the main unit. The supplied labels are
then affixed to items of merchandise by a label affixing means provided on the main
unit. An exclusively label-by-label supply system is inconvenient, as in a supermarket,
for example, at each sales counter, each of a continuous run of labels of the requisite
quantity according to specified data, or each of a continuous run of labels handed
directly to the tradesman delivering the merchandise, is applied manually without
the use of an apparatus. What is referred to as a continuous run of labels means that
the labels are not peeled off as per the above but that the thermal labels are paid
out from the front of the main unit in the state of provisional adhesion to the strip-shaped
backing sheet. The labels thus supplied are then peeled by fingertip or the like from
the strip-shaped backing sheet and manually adhered to the merchandise.
[0007] Furthermore, because of the inconvenience of the aforementioned label-by-label supply,
there is also a construction consisting of a separate attachment which is attached
to the main unit to provide a continuous supply of labels with their backing sheet.
However, the drawback of this arrangement is that the fitting and removal of the attachment
to the main unit is troublesome.
[0008] A further portable thermal printer is known from EP-A-0 209 752 which is a prior
art document in accordance with article 54 (3) EPC. This citation discloses a portable
thermal printer having a themal print head and a platen roller provided in opposition
to said thermal print head. The thermal print head and the platen roller form a main
printer labeller unit which is connected to a control circuit. A transport roller
feeds out a strip-shaped backing sheet and a motor in the form of a stepping motor
powers the rotation of said transport roller.
[0009] This portable thermal printer however, suffers from its heaviness for portable use
and from its difficulties to cut the continuous strips of labels or texts when these
are supplied and issued.
[0010] Furthermore EP-A-0 199 201 which is also a prior art document in accordance with
article 54 (3) EPC discloses a portable thermal printer which is similar to the printer
known from EP-A-0 209 752.
[0011] An object of the present invention is to provide an electronic hand labeller comprised
of a single printing-labelling unit which without any fitting of an attachment to
the main unit is capable both of supplying single labels and continuous runs of labels
with backing sheet and which in addition can supply continuous runs of text using
the same technique that is employed for providing the continuous supply of label strip.
[0012] The solution of this object is achieved by the features of claim 1.
BRIEF DESCRIPTION OF THE DRAWINGS
[0013]
Figure 1 is a general perspective view of a printer-labeller unit, control unit and
pen scanner setup according to a first embodiment of this invention;
Figure 2 is a general side view of the printer-labeller unit;
Figure 3A is an enlarged cross-sectional view of the principal parts of the printer-labeller
unit;
Figure 3B is an explanatory diagram of the label routing with the printer-labeller
unit cover and platen arm in the opened state;
Figure 4 is a partially cutaway side view of the platen arm retaining device provided
on the printer-labeller unit;
Figure 5 shows the drive transmission for the platen roller and traction roller of
the printer-labeller unit;
Figure 6 is an exploded perspective view of the printer-labeller unit;
Figure 7 is a perspective view of a label cutting device provided in the cover;
Figure 8 is an exploded perspective view of the control unit equipped with a keyboard,
display and batteries; and
Figure 9 is a general perspective view of a label/tag printing device according to
a second embodiment of the electronic hand labeller of this invention.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0014] The preferred embodiments of the present invention will now be described with reference
to the accompanying drawings.
[0015] With reference to Figure 1, the electronic hand labeller of the present invention
consists basically of a set of three components: a printer-labeller unit 1 that can
be operated by one hand; a separate control unit 100 connected by a cable 2 to the
printer-labeller unit 1; and a pen scanner 4 connected to the control unit 1 by a
cable 5.
[0016] The control unit 100 and pen scanner 4, like the printer-labeller unit 1, are portable
and so can be carried about one's person such as in the overall pocket (not shown)
or on the belt (not shown) of the operator. The control unit 100 is also provided
with a keyboard 103, display 104, batteries 105, and a holder 7 for holding the pen
scanner 4. In the drawing numerals 3a, 3b and 6 denote cable plugs.
[0017] With reference to Figures 2, 3A and 3B, a label holder 13 for holding a continuous
thermal-label roll 95 is provided on the upper portion of an outer frame 11 of the
printer-labeller unit 1. At the rear thereof is formed a grip 20 to allow the unit
to be gripped in one hand and operated. Inside the outer frame 11 is a thermal printing
device 30, a label transport device 70 and a label applicator portion 90. At the label
holder 13 portion, a more or less semicircular label case 14 that encases the roll
of thermal label strip 95 is affixed to a spindle 15 at the forward part of the outer
frame 11 so as to be freely openable and can stay opened toward the front of the main
unit, and toward the rear (the operator side) is engaged at an engaging portion 16.
With reference especially to Figures 1 and 2, a microswitch 22 operated by a pushbutton
21 is provided inside the grip 20. The microswitch 22 is detachably connected to a
connector 8 and to the plug 3a of a cable 3 which is connected to batteries 105 provided
inside the control unit 100. The microswitch 22 is also connected to the thermal print
head 36 of a thermal printing device 30, a motor M of a label transport device 70,
a diode type emission reflection lamp L and a reflection type sensor S.
[0018] With reference to Figures 3A, 3B and 6, the thermal printing device 30 attached to
an inner frame 12 provided at one portion of the outer frame 11 is comprised of a
combination of a thermal unit 31 and a platen roller 51. In more detail, a heat radiation
member 34 is attached to the thermal unit 31 by means of the fixing screw 41 of a
unit baseplate 32. By means of a thermal print head retainer plate 38, an O-ring 39
and a fixing screw 40, attached to the heat radiation member 34 at the forward portion
thereof is a thermal print head 36 and a flexible ribbon cable 37 connected to the
thermal print head 36 and running towards the rear thereof, with the said O-ring 39
being arranged at the join portion for secure attachment. The ribbon cable 37 is wired
to the connector 8 via the microswitch 22, specifically by means of a circuit board
17 provided in the grip 20.
[0019] The entire thermal unit 31 is attached to the inner frame 12. More specifically,
a pair of mounting bosses 32a provided on the baseplate 32 engage with socket portions
in the inner frame 12 so that the front part of the thermal unit 31 can swing. A stepped
portion 35 formed at the front edge of the heat radiation member 34 is positioned
in spaced opposition to a main unit fixing portion 26.
[0020] On the upper part of the thermal unit 31, two resilient engaging members 33a and
33b comprised of a spring construction attached to the baseplate 32 are securely contacted,
by utilizing the resiliency thereof, with a motor fixing portion 23a and a unit fixing
portion 23b inside the inner frame 12.
[0021] The thermal print head 36 positioned at the lower front surface portion of the thermal
unit 31 is aligned into position by means of an alignment step portion 35a formed
on the heat radiation member 34. Thus, only when the front edge of the thermal print
head 36 fits into this step portion 35a is the thermal print head 36 resiliently urged
into its correct position, the construction working for parallelism between the thermal
print head 36 and the platen roller 51 provided opposite thereto. The numeral 25a
denotes through-holes for dissipating the heat of the motor M, while 25b is a window
for the lamp L.
[0022] The platen roller 51 urged against the thermal print head 36 by the resilience of
the resilient engaging members 33a and 33b is rotatably attached to a platen arm 50.
The platen roller 51 is mounted on a spindle 52 the ends of which are housed in retainer
portions 53 consisting of cutouts in the frame of the platen arm 50. The platen roller
51 is rotated by a driving source constituted by the motor M, as described later,
and the desired thermal printing is performed on thermal labels 96 of the roll of
thermal label strip 95 pressed against the thermal print head 36. At the tip of the
platen roller 51 the strip-shaped backing sheet 97 is caused to be reversed and the
thermal labels 96 provisionally attached to the upper surface of the backing sheet
97 peeled off by a sheet bending pin 54.
[0023] The platen arm 50 can rotate counterclockwise about a pivot 77. Provided in the main
unit is a label retainer member 72 the movement of which is interlocked with the rotation
of the platen arm 50. A coupling pin 76 provided on a coupling portion 55 which curves
up towards the back of the platen arm 50 is fitted into a slot 75 in the label retainer
member 72. In interlocked motion with the rotation of the platen arm 50, the label
retainer member 72 is pivoted about a fixed guide roller 74 provided at one end of
the label retainer member 72, so that a moveable guide roller 73 provided at the other
end thereof is displaced in the direction from the solid line toward the double-dot
chain line. Thus, the construction is such that both of the guide rollers 73 and 74
in contact with the inclined label guide passage surface 19 provided below the label
holder 13 are separated from the label guide passage surface 19 to form a label insertion
passage. Provided near the label retainer member 72 is the traction roller 71 of the
label transport device 70 which is rotated by the motor M. A pressure roller 83 set
inside the lower casing 80 exerts pressure on the traction roller 71, so that the
strip-shaped backing sheet 97 is pressed between the rollers 71 and 83 and fed out
from the rear of the main unit in order to peel the thermal labels 96 from the backing
sheet 97.
[0024] In this embodiment the roller 71 works by exerting traction on the strip-shaped backing
sheet 97. However, this may also refer to a conveying roller for guiding out the strip-shaped
backing sheet, including an engagement roller comprised of, for example, a rotating
member having engaging pins on its circumference which engage with conveying holes
or perforations provided in the strip-shaped backing sheet 97 to cause the thermal
label roll 95 to be advanced.
[0025] As shown in Figure 5, the platen roller 51 which pays out the roll of thermal label
strip 95 from the front of the main unit and the traction roller 71 that pays out
the strip-shaped backing sheet 97 from the rear of the main unit are caused to rotate
by the motor M. The rotation of the motor M is communicated to the platen roller 51
by the rotation of a motor gearwheel 42 via intermediate gearwheels 43 and 44 which
mesh with a platen roller gearwheel 45. The rotation of the traction roller 71 is
effected from the motor M via a belt 47 mounted on pulleys 46a and 46b to rotate a
gearwheel 48 which rotates a traction roller gearwheel 49.
[0026] It is necessary for the traction roller 71 to be driven at a higher speed than the
platen roller 51. The reason for this is that unless the arrangement is such that
extra traction is applied to the strip-shaped backing sheet 97 after the separation
of the thermal labels 96 by the driven rotation of the platen roller 51, good label
separation will not be achievable.
[0027] The bottom cover 80 is pivoted about a spindle 92 of a label applicator roller 91
so that it can be opened in a clockwise direction. In its closed state, the bottom
cover 80 has disposed therein an auxiliary peeling pin 81 adjacent to the bending
pin 54 of the platen arm 50, and toward the rear is provided with a backing-sheet
guide roller 82 and the pressure roller 83. The ends of the spindle 84 of the pressure
roller 83 are fitted into retaining slots 85 formed in the frame of the bottom cover
80.
[0028] At the rear end of the bottom cover 80 are formed engaging insets 86 for accommodating
therein a resiliently-urged set pin 27 that is fitted into a guide slot 28 formed
in the outer frame 11.
[0029] The set pin 27 is interlocked with the retaining device 60 of the platen arm 50,
as shown in Figure 4. More specifically, by means of a link 61 the set pin 27 is in
contact with a spring 61b mounted on a spring shaft 61a attached to the inner frame
12. The spring 61b urges the link 61 toward the front end (toward the left in Figure
4); thus, the spring 61b urges the positioning pin 27 toward the left end of the guide
slot 28. A hook 63 is affixed to the end of the link 61 by a coupling pin 62. The
hook 63 can turn about a pivot shaft 64 and has at its tip an engaging portion 63a
which can be disengageably engaged with an engaging projection 56 formed on the platen
arm 50 (this is shown in Figure 6). Mounted on a spring shaft 65a provided on the
inner frame 12 is a spring 65b one end of which fits against the link 61 and the other
end of which abuts against a spring stop 24, the link 61 thereby being urged counterclockwise
to facilitate the opening of the platen arm 50.
[0030] The inner frame 12 also supports a backing-sheet roller arm 66 which urges the traction
roller 71 against the pressure roller 83 of the bottom cover 80. The roller arm 66
pivotally mounted on a fulcrum shaft 67 has a housing portion 68 in which is accommodated
a spring 69 which abuts against a stepped portion 12a of the inner frame 12, the entire
roller arm 66 being thereby urged to rotate clockwise. Therefore, the traction roller
71 provided at the lower part of the roller arm 66 is urged in a clockwise direction,
so that the strip-shaped backing sheet 97 guided between the traction roller 71 and
the pressure roller 83 which is in pressure contact with the traction roller 71 is
paid out from the rear of the main unit, while at the same time any slip that might
occur between the excessively-rotating traction roller and the strip-shaped backing
sheet 97 is absorbed by the action of the spring 69 of the roller arm 66.
[0031] As shown in Figures 3B and 6, the platen arm 50 is provided with a screwdriver access
hole 57. Preferably the screwdriver access hole 57 is positioned so that it is in
alignment with the fixing screw 40 of the thermal printing device 30 when the platen
arm 50 is in its inclined open position.
[0032] On the side of the platen arm 50 is provided an engaging projection 56 for engaging
with the engaging portion 63a of the hook 63.
[0033] As shown in Figures 3A, 6 and 7, the bottom cover 80 is provided at the back with
a rear cutter 87 for the strip-shaped backing sheet 97, and at the front with a front
cutter 88 for the roll of thermal label strip 95, in the state in which the thermal
labels 96 are provisionally attached to the strip-shaped backing sheet 97.
[0034] In the first stage of the bar code printing operation using the main unit, the labels
are loaded into the main unit as a continuous strip wound into a roll 95 on the label
holder 13 of the printer-labeller unit 1 and the strip extended therefrom. As shown
in Figure 3B, the loading of the labels is greatly facilitated by the opening of the
bottom cover 80 and the opening in the opposite direction of the platen arm 50.
[0035] This label loading refers to ordinary label insertion. The roll of thermal label
strip 95 is redirected to the rear at the sheet bending pin 54, and the required thermal
printing is performed on the thermal labels 96 in pressure contact with the platen
roller 51, which is rotated by the motor M, and the thermal print head 36, after which
the thermal labels 96 are issued. The redirected backing sheet 97, similarly to the
platen roller 51, is maintained in pressure contact with the pressure roller 83 and
the traction roller 71 rotated by the motor M to be guided out of the rear of the
main unit, the construction thus providing sound label delivery and label separation.
[0036] With respect to the bar code printing operation, the control unit 100 will now be
described with particular reference to the exploded perspective view of Figure 8.
As described, the control unit 100 is constituted separately from the printer-labeller
unit 1 and is provided with a keyboard 103, a display 104 and batteries 105. The control
unit 100 consists of a controller section 101 provided with the keyboard 103 and the
display 104, and a battery section 102 provided with the batteries 105.
[0037] The controller section 101 is provided with a cover 106 which has a keyboard faceplate
107 which fits on the keyboard 103 and a display window 108 which fits onto the display
104; an electronic component circuit board 110 provided with a connector 112 for connecting
the keyboard 103, an electronic device board 109, display 104 and electronic devices
111 with a personal computer or the like, a connector 113 for connecting the printer-labeller
unit 1 and a connector 114 for connecting the pen scanner 4; and support frame 115
provided with a switch 116 and the like.
[0038] The battery section 102 is provided with a battery cover 119 that has formed thereon
a dovetail groove 120; batteries 105 provided with a connector 123 for connecting
up to an outside power source for charging and a connector 122 for connecting to the
controller section 101; and a lower cover 124.
[0039] The battery section 102 is connected to the controller section 101 by a hook member
117. The hook member 117 is guided by the dovetail groove 120 on the battery cover
119 into engagement in a junction opening 118 formed in the support frame 115 and
is resiliently maintained by the battery section 102 and the controller section 101.
[0040] Also, the connector 122 of the batteries 105 is connected to the plug 121 of the
controller section 101 to provide an electrical connection therebetween.
[0041] The operation of the present embodiment will now be explained with reference to Figures
2, 3A, 3B, 5 and 8, using as an example the printing of a bar code.
[0042] The switch 116 of the control unit 100 is switched to ON and the data to be printed
is input via the keys of the keyboard 103. Specifically, the merchandise code and
price and the like are input, followed by the required quantity of labels. On the
basis of this data input, check digits are computed automatically and displayed on
the display 104 of the control unit 100.
[0043] Next, in the first stage of the printing, the microswitch 22 is switched on by pressing
the pushbutton 21 on the printer-labeller unit 1, whereupon in accordance with commands
from the control section the specific heating elements in the thermal print head 36
heat up, producing coloration on the thermal label 96 which is in pressure contact
with the platen roller 51.
[0044] The rotation of the motor M by a specified amount on the one hand causes the platen
roller 51 to be rotated by a specific amount via the gearwheels 42, 43, 44 and 45
so that the roll of thermal label strip 95 on the platen roller 51 is thereby fed
forward, and on the other hand causing the traction roller 71 to be rotated by a specific
amount, via the belt 47 and the gearwheels 48 and 49, so that by the cooperative action
of the pressure roller 83 the strip-shaped backing sheet 97 is drawn a predetermined
distance.
[0045] As a result, the thermal labels 96 on the paid-out roll of thermal label strip 95
start to be peeled from the strip-shaped backing sheet 97 at the sheet bending pin
54. Following this, the thermal print head 36 is again used as described above and
the next determined amount of printing performed on a thermal label 96, advancing
the roll of thermal label strip 95, and following the completion of the printing of
one label, the roll of thermal label strip 95 continues to be advanced until a sensing
mark (not shown) provided on the reverse side of the strip-shaped backing sheet 96
is detected by a sensor S.
[0046] The thermally-printed labels 96 thus conveyed are then peeled from the strip-shaped
backing sheet 97 at the sheet bending pin 54 provided in front of the platen roller
51 and are issued from an outlet 29 to a label applicator section 90.
[0047] Thus, the labels are fed out below the label applicator roller 91 while actually
resting on the auxiliary peeling pin 81. The operator carrying the printer-labeller
unit 1 by the grip 20 can, by sliding the label applicator roller 91 portion across
the merchandise, apply thermal labels on which have been printed bar codes. When the
preset number of labels have been produced, the electrical and mechanical operations
of the printer-labeller unit 1 and the control unit 100 are halted, having reached
completion.
[0048] In the case of the provision of a continuous strip of labels, i.e., the supply from
the label outlet 29 provided at the front of the main unit of the printer-labeller
unit 1 of labels that are still attached to the backing sheet, while similarly to
when it is single labels that are being supplied the bottom cover 80 and the platen
arm 50 are opened, there is no redirection of the roll of thermal label strip 95.
When the continuous thermal-label strip has been guided along the label guide passage
surface 19 and brought to the outlet 29 from the platen roller 51 portion, the insertion
is completed by just locking the platen arm 50 and the bottom cover 80.
[0049] Then, again in the same way as the operation already described in the above, pushing
the pushbutton 21 on the printer-labeller unit 1 starts the rotation of the motor
M which causes the platen roller 51 to rotate via the gearwheels, thermal printing
to be performed and the labels to be issued in a continuous strip from the front of
the main unit.
[0050] This device is also provided with online capabilities. By connecting the connector
112 of the control unit 100 to a personal computer, data input from the personal computer
or stored on disk can be communicated to the printer-labeller unit 1 to have the required
printing performed on the thermal labels. In addition, data can also be input via
the pen scanner 4.
[0051] The label cutting means will now be described with reference to Figures 3 and 7.
After the required thermal printing has been carried out on the continuous thermal-label
strip, labels are either fed out the front of the printer-labeller unit 1 in a continuous
strip while still attached to the backing sheet, or the labels are peeled from the
backing sheet and fed out one at a time and the strip-shaped backing sheet is redirected
backwards.
[0052] Usually labels are issued singly. Specifically, the labels on the roll of thermal
label strip 95 are thermally printed by the thermal print head 36 and the driven platen
roller 51 and at the sheet bending pin 54 the thermal labels 96 are separated by the
tractive effect of the backing sheet 97. The backing sheet 97 is then guided by the
guide roller 82 and directed out of the main unit by the traction roller 71 and the
pressure roller 83.
[0053] With the label provision and application, when the backing sheet 97 is fed out from
the rear of the main unit it is cut off when it reaches a suitable length. This cutting
of the backing sheet 97 is performed by a cutter 87 provided toward the rear of the
bottom cover 80.
[0054] In the other case, that where after a set number of labels which been issued without
being peeled off and applied by the label applicator roller 91, but instead are to
be manually applied to the merchandise, i.e., the provision of a continuous strip
of labels with their backing sheet, a front cutter 88 is provided at the front of
the bottom cover 80 to cut off the continuous strip of labels with backing sheet issuing
from the front of the main unit.
[0055] The bottom cover 80 being provided with the said rear cutter 87 and front cutter
88 is convenient as both cutters can be used, the rear cutter 87 for when the usual
single label supply is employed and the front cutter 88 for when labels with backing
sheet are being fed out to the front of the main unit.
[0056] The label/tag printing device will now be described in a second embodiment of the
present invention, with reference to Figures 3A, 3B and 9.
[0057] The present electronic hand labeller is usually applied to thermal labels, but the
construction of the present device allows it to also be used for printing thermal
tag strip. As shown in Figure 9, when a continuous strip of thermal tags wound into
a roll 140 is to be printed, the control unit 100 provided with the printer-labeller
unit 1, keyboard 103, display 104 and batteries 105 is set on a stand 130.
[0058] The stand 130 has a control unit channel 133 on the control unit side 131 in which
the control unit 100 is set, and a printer-labeller channel 134 on the printer-labeller
unit side 132 in which the printer-labeller unit 1 is set. The operating side of the
control unit side 131 is formed as a low-set incline to facilitate operation of the
keys of the control unit 100, while the printer-labeller unit side 132 is arranged
to be parallel to the outlet 29 of the printer-labeller unit 1 to facilitate the feeding
out of the tags, and is also provided with an anti-vibration baffle 135.
[0059] At the rear part of the printer-labeller unit side 132 of the stand 130 is a tag
reel 136 rotatably affixed to a reel support upright 137. The end of the roll 140
of thermal tag strip mounted on the tag reel 136 has to be opposite an opening 18
formed when the label case 14 of the printer-labeller unit 1 is closed. For the thermal
tag roll 140 wound onto the tag reel 136, when the bottom cover 80 and the platen
arm 50 are in the opened state, the tag insertion is simple, starting from the opening
18, leading onto the label guide passage surface 19 and then to the label guide passage
surface 78 of the platen arm 50, to form a single, straight line. The platen arm 50
and the bottom cover 80 are then shut, whereby the end of the thermal tag roll 140
is not redirected backwards as is the case when single labels are being issued, but
instead is led in a straight line toward the outlet 29, similarly to when continuous
strips of labels are being issued. In this state, the printer-labeller unit 1 is positioned
in the printer-labeller channel 134 in the stand 130.
[0060] Following this, the keys of the keyboard 103 on the control unit 100 are operated
to input data. By then pressing the pushbutton 21 on the printer-labeller unit 1,
tags thermally printed by the same printing operation used for labels are fed out
from the outlet 29. It is important at this time that the platen roller 51 pressing
resiliently against the thermal print head 36 be driven. Because this operation is
the same as that used when continuous label strip is being issued, the details thereof
are omitted here.
[0061] The present printing apparatus is comprised of the stand 130 into which the printer-labeller
unit 1 and the control unit 100 are inserted, the label holder 13 for the roll of
continuous thermal-label strip 95 on the printer-labeller unit 1, the openable label
case 14, the opening 18 formed when the label case 14 is closed, the driven platen
roller 51 provided inside the main unit, and on the stand 130, facing the opening
18, the tag reel on which is wound the continuous thermal-tag strip 140, thus enabling
both labels and tags to be printed. Also, the printer-labeller unit 1 and the control
unit 100 with the keyboard for input are securely fitted into place on the stand 130,
which provides stability during input operations and facilitates the issuance of label
strip with backing sheet and of tags.
[0062] As has been described in the foregoing, the present invention is comprised of a label
feed-out platen roller 51 provided in opposition to a thermal print head 36 at the
front part of the main printer-labeller unit 1, a transport roller at the rearward
part of the main unit for feeding out the strip-shaped backing sheet, and a motor
M which powers the rotation of both rollers. This arrangement allows the issuance
of single labels which are each peeled from the backing sheet, and of continuous label
strips with the labels still provisionally attached to the backing sheet, without
the use of attachments such as have been conventionally required. As such it has the
merit of expanding the range of applications of labellers.