CA1238236A - Printing head cassette - Google Patents
Printing head cassetteInfo
- Publication number
- CA1238236A CA1238236A CA000482044A CA482044A CA1238236A CA 1238236 A CA1238236 A CA 1238236A CA 000482044 A CA000482044 A CA 000482044A CA 482044 A CA482044 A CA 482044A CA 1238236 A CA1238236 A CA 1238236A
- Authority
- CA
- Canada
- Prior art keywords
- film
- printing head
- casing
- cassette
- pulley
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H5/00—Measuring propagation velocity of ultrasonic, sonic or infrasonic waves, e.g. of pressure waves
Abstract
ABSTRACT OF THE INVENTION
A printing head cassette consists of a casing, at least one pulley member rotatable positioned in the casing;
a film which is movably contacted by a heating surface of a thermal head and is movably guided by the pulley in said casing member; a plurality of small holes which are shaped in the film member; a recording ink which is stored in the casing member; the pulley and film are immersed in the recording ink; the recording ink fills the small holes; the recording ink in the small holes of the film member is moved to a position adjacent the heating surface of the thermal head by rotating the pulley and moving the film according to the rotation of the pulley.
A printing head cassette consists of a casing, at least one pulley member rotatable positioned in the casing;
a film which is movably contacted by a heating surface of a thermal head and is movably guided by the pulley in said casing member; a plurality of small holes which are shaped in the film member; a recording ink which is stored in the casing member; the pulley and film are immersed in the recording ink; the recording ink fills the small holes; the recording ink in the small holes of the film member is moved to a position adjacent the heating surface of the thermal head by rotating the pulley and moving the film according to the rotation of the pulley.
Description
~:3~3~3~;
A PRINTING HEAD CASSETTE
Background of the Invention The present invention relates to a cassette for a printing head, and in particular a cassette for a printing head in which ink is deposited in a plurality of holes or recesses in a film member and projected or jetted by bubble pressure due to heat from a thermal head.
In the conventional ink jet type printer, a plural-fly of ink jet nozzles are used, and ink is jetted to a printing paper by a pus electric driving means. Such pus electric ink jet printers are not entirely satisfac-tory. For example, it is very difficult to eliminate a nozzle stoppage, whereby a skip occurs in the desired printing. On the other hand, in the case of an inked ribbon type printer, ink gradually decreases in the ribbon, with use, and print density correspondingly decreases, resulting in pale printing. Further, in the case of thermal transfer or hammer type printers, a coated tape must be discarded after one printing operation. Therefore, a printer, type-writer or word processor, which must be able to print by supplying ink continuously, has not been developed until now.
:
Summary of the Invention The present invention aims to eliminate the above noted difficulties and insufficiencies. The object of the present invention is to provide a new cassette for a print-in head which contains at least one pulley which is rota-tally mounted in a casing, a film member which is movably ' 8~36 mounted and guided by the pulley in the casing and is in contact with a heating surface of a thermal head. A plural-fly of small holes or recesses in the film member are filled with recording ink from ink stored in the casing.
grief Description of the Drawings Fig. l to 9 show a first embodiment of the present invention:
Fig. l shows a cross sectional view of a cassette for a printing head;
Fig. 2 shows one part of a film;
lo Fig. 3 shows a cross sectional view of the cassette of Fig. l;
Fig. 4 shows a perspective view of a cassette printing head of a serial color printer;
Fig. 5 shows a cross sectional view of an endless film type of printing head cassette;
Fig. 6 shows a cross sectional view of a line printer cassette as another embodiment of the present invention;
Fig. 7 shows a perspective view of Fig. 6;
Fig. 8 shows a front view of a line color printer;
Fig. 9 shows an enlarged cross sectional view of a principal construction;
Figs. lo to 13 show a further embodiment of the present invention:
Fig. lo is a perspective view of a complete printing head;
Fig. if shows a front cross sectional view of the ink cassette for use in the printer of Fig. lo :: :
::
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~23~3~36 Fig. 12 shows a side cross sectional view of the ink cassette of Fig. 11; and Figs. 13~ and 13B show a side cross sectional view and flat plan view illustrating the printing principal of the present invention.
Description of the Preferred Embodiments Referring now to a first embodiment of the present invention illustrated in the accompanying drawings, Fig. 1 shows a cross sectional view of a printing head cassette. A
casing 1 of box shape is detachably mounted on the main body of a printing machine (not shown), an open recess portion 2 is formed in the top portion of the casing member 1, a thermal head 3 shown in dotted lines is guided into the open recess portion 2 when the casing 1 is mounted on the main body. A pair of pulleys or reels 4 and 5 are rotatable mounted in the casing 1.
A flexible film member 7 which has a plurality of holes (diameter is about 10 I- 200 em) as shown in Fig 2 is made of a metal or organic material, for example flexible polyamide film, is rotatable mounted between pulleys 4 and 5. The film 7 passes through a pair of guiding members 8 which are positioned adjacent the open recess portion 2.
The guiding members 8 are composed of a pair of guide eye-mints pa and 8b which are made of a felt material which removes excess liquid ink 9 on the film 7, except for ink in the holes 6. A plurality of groups pa of small holes 6 are positioned along the film 7 and are spaced apart by blank portions 6b with small hole groups pa alternating with blank portions 6b~ The film 7 is in contact with the heating ::
.
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.:
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surface of the thermal head 3 and is moved by rotation of pulleys 4 and 5. The small hole group pa is immersed period-icily in liquid ink in said casing member 1 to avoid drying of the ink 9 in holes 6. Further, as another embodiment of the present invention not shown in the drawings, the small holes are wholly shaped to said film member 7, it is able to use this type film member 7 by always rotating it by the pulleys 4 and 5.
The axle portions pa and pa of the pulleys 4 and 5, as shown in Fig. 3, protrude through a bearing portion lb of a mounting portion lo on one face of the casing member 1, a pair of driving disks 4b and 5b which are connected to a driving means (not shown) are mounted to the outer portion of said axle portions pa and pa. Further, an O-ring member 10 is positioned between the mounting portion lo and the axle portions pa and pa to prevent ink 9 from escaping and to provide a braking effect to prevent over-running of the axle portions pa and pa.
Fig. 4 shows a color printing head block 11 which is composed of four cassette casing members 1 for Y color (yellow), M color (magenta), C color (cyan) and BULK color (black). As shown in Fig. 4, the casing members 1 are shaped as one body in a length direction of the film member movement direction. A pair of guide bars 13 are slid ably passed through a pair of guide holes 12 which are shaped to the bearing portions lb of the casing members 1. The color printing head block 11 is reciprocally moved along said guide bars 13 J whereby a cassette type serial color print-in head for a serial color printing system is attained.
The color printing head block 11 may be changed by pulsing the casing members 1 toward front direction whereby the casing members 1 are freed from a lock mechanism (not shown).
Jo t , .
Fig. 5 shows another embodiment of the present invention, only one pulley 4 is rotatable mounted in the casing member 1, an axle portion pa is rotatable driven by a driving means snot shown), an endless type film member 7 is slid ably connected with the heating surface pa thermal dot elements) of the thermal head 3. A part of the film member 7 is spread by a tension roller 15 which is mounted to an inner wall of the casing member 1 via a spring member 14.
In the embodiment of Fig. 5, the small holes of the film member 7 are repeatedly used for printing.
Fig. 6 shows another embodiment of the present invention, particularly a cassette for a printing head for a line printing system. The casing member 1 is composed of a pair of cylinder members to and id of a length almost the same as the width of the printing paper and a pair of plate members to and if. Side portions of the plate members to and if seal the ends of the cylinder members to and id.
Liquid ink 9 is housed in the cavity of the cylinder members to and id, pulleys 4 and 5 are rotatable mounted therein, the film member 7 which has a plurality of small holes and is rotatable mounted on the pulleys 4 and 5 is guided from a gap portion of a guide member 8 toward the outer portions of cylinder members to and id. One surface of said film member 7 is in contact with the heating surface pa of the thermal head 3 which is positioned in the open recess portion bet-wren the cylinder members to and id. Further, the pulleys 4 and 5 have axle portions pa and pa and driving disks 4b and 5b respectively integral therewith as shown in Fig. 7.
Therefore, the embodiments of Figs. 6 and 7 show line print-in cassette head for one color.
The embodiment of Fig. 8 shows a line color print-in head which has four cassette printing heads of Y, M, C
and BULK colors. The cassette printing heads are aligned :
`::
,.
~3~3236 in the direction of motion of the film member 7 whereby a line cassette head block 16 is constructed. Therefore, a recording paper 17 is slid ably moved on said line cassette head block 16 by a belt having a plurality of holes which is moved by a pair of pulleys 18 and 19, the recording paper 17 is tightly held to the belt 20 by a vacuum means 21.
The above noted cassette printing head is easily detachably mounted on a printing machine (not shown). The thermal head 3 is guided in the open recess portion 2 of the casing member 1 whereby the casing member 1 and thermal head 3 are constructed as one body. The ink 9 in the small holes 6 of the film member 7 is jetted on the recording paper 17 by bubble pressure when the heating surface pa of the then-met head 3 is actuated.
Referring now to a second embodiment of the present invention illustrated in the accompanying drawings, Figs. 10 to 13, numeral 1 shows a box-shaped casing member in which ink 2 is housed, and a pair of pulleys 4 and 5 are rotatable disposed in the casing member 1.
The end portions of a film 7 which is composed of a thin metal or resin material such as polyamide are con-netted to the pulleys 4 and 5. A plurality of small holes or recesses 6 as shown in Figs. 12 and 13 are shaped in the film 7, each small hole or recess 6 is about 10 200 em diameter and composes one picture element.
A driving axle 25 is rotatable disposed on the upper portion of the pulleys 4 and 5 in the casing member 1.
One end of the driving axis 7 protrudes outside of the gas-in member 1 and has a gear portion aye, Fig. 12. A pair of idlers 26 are rotatable disposed between the pulleys 4 and 5 Jo and between the pulley 5 and driving axis 7 and are geared .....
~38~36 with pulleys 4 and 5 and driving axle 7. Pulleys 4 and 5 and film 7 are rotated in the same direction by the idlers 8. Further, it is possible to rotate pulleys 5 and film 7 by friction there between instead of by gear drive.
One end portion of film 7 protrudes from an opened portion 27 (Fig. 11) which is shaped to the upper portion of the casing member 1. Film 7 is placed between a sealing member 30 and protrusions 29 of a plug 28 whereby ink is not emerged from said casing member 1. An ink filling plug 31 (Fig. 12) is provided in a side portion of the casing member 1, to enable ink to be replenished when required.
Fig. 10 shows a printer head 33 in which an ink cassette 32 is detachably attached thereto. A supporting recess portion lo of the casing member 1 is mounted on a supporting arm 16 of said printer head 33, thus making it possible to separate the ink cassette 32 from the printer head 33 by opening the supporting arm 32 and pulling a knob aye by hand A thermal head 3 is mounted on the printer head 33, four ink cassettes 32 for four colors Y, M, C and BULK are disposed, an exposed portion pa of the film 7 is contacted with an outside surface of said thermal head 3.
Each of gear members aye of the ink cassette 14 are con-netted with a timing belt 37 of a printer body 18 and are pressed by a supplemental pulley 20 which is mounted on the printer head 33.
The printer head 33 is reciprocally disposed on a pair of guiding bars 39, the driving axis 25 of the ink cassette 32 is rotated by the timing belt 37, then it is able to print on paper 41 on a platen 40.
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I:
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Ink material in the holes or recesses 6 is jetted to the paper 41 by bubble pressure from heating of the thermal head.
According to the present invention, when the ink is exhausted, it is possible to only change a cassette, not the thermal head, whereby printing in one or more colors can continue.
Further, it is able to constantly print by moving the film during printing operation, thereby a stoppage of said holes or recesses is completely prevented.
Furthermore, it is able to constantly print at a constant density.
. . :
, , .
::
A PRINTING HEAD CASSETTE
Background of the Invention The present invention relates to a cassette for a printing head, and in particular a cassette for a printing head in which ink is deposited in a plurality of holes or recesses in a film member and projected or jetted by bubble pressure due to heat from a thermal head.
In the conventional ink jet type printer, a plural-fly of ink jet nozzles are used, and ink is jetted to a printing paper by a pus electric driving means. Such pus electric ink jet printers are not entirely satisfac-tory. For example, it is very difficult to eliminate a nozzle stoppage, whereby a skip occurs in the desired printing. On the other hand, in the case of an inked ribbon type printer, ink gradually decreases in the ribbon, with use, and print density correspondingly decreases, resulting in pale printing. Further, in the case of thermal transfer or hammer type printers, a coated tape must be discarded after one printing operation. Therefore, a printer, type-writer or word processor, which must be able to print by supplying ink continuously, has not been developed until now.
:
Summary of the Invention The present invention aims to eliminate the above noted difficulties and insufficiencies. The object of the present invention is to provide a new cassette for a print-in head which contains at least one pulley which is rota-tally mounted in a casing, a film member which is movably ' 8~36 mounted and guided by the pulley in the casing and is in contact with a heating surface of a thermal head. A plural-fly of small holes or recesses in the film member are filled with recording ink from ink stored in the casing.
grief Description of the Drawings Fig. l to 9 show a first embodiment of the present invention:
Fig. l shows a cross sectional view of a cassette for a printing head;
Fig. 2 shows one part of a film;
lo Fig. 3 shows a cross sectional view of the cassette of Fig. l;
Fig. 4 shows a perspective view of a cassette printing head of a serial color printer;
Fig. 5 shows a cross sectional view of an endless film type of printing head cassette;
Fig. 6 shows a cross sectional view of a line printer cassette as another embodiment of the present invention;
Fig. 7 shows a perspective view of Fig. 6;
Fig. 8 shows a front view of a line color printer;
Fig. 9 shows an enlarged cross sectional view of a principal construction;
Figs. lo to 13 show a further embodiment of the present invention:
Fig. lo is a perspective view of a complete printing head;
Fig. if shows a front cross sectional view of the ink cassette for use in the printer of Fig. lo :: :
::
"r.., ,,, : ' : ' . ' .
~23~3~36 Fig. 12 shows a side cross sectional view of the ink cassette of Fig. 11; and Figs. 13~ and 13B show a side cross sectional view and flat plan view illustrating the printing principal of the present invention.
Description of the Preferred Embodiments Referring now to a first embodiment of the present invention illustrated in the accompanying drawings, Fig. 1 shows a cross sectional view of a printing head cassette. A
casing 1 of box shape is detachably mounted on the main body of a printing machine (not shown), an open recess portion 2 is formed in the top portion of the casing member 1, a thermal head 3 shown in dotted lines is guided into the open recess portion 2 when the casing 1 is mounted on the main body. A pair of pulleys or reels 4 and 5 are rotatable mounted in the casing 1.
A flexible film member 7 which has a plurality of holes (diameter is about 10 I- 200 em) as shown in Fig 2 is made of a metal or organic material, for example flexible polyamide film, is rotatable mounted between pulleys 4 and 5. The film 7 passes through a pair of guiding members 8 which are positioned adjacent the open recess portion 2.
The guiding members 8 are composed of a pair of guide eye-mints pa and 8b which are made of a felt material which removes excess liquid ink 9 on the film 7, except for ink in the holes 6. A plurality of groups pa of small holes 6 are positioned along the film 7 and are spaced apart by blank portions 6b with small hole groups pa alternating with blank portions 6b~ The film 7 is in contact with the heating ::
.
.. :~, ,:
.:
~3~3~3~
surface of the thermal head 3 and is moved by rotation of pulleys 4 and 5. The small hole group pa is immersed period-icily in liquid ink in said casing member 1 to avoid drying of the ink 9 in holes 6. Further, as another embodiment of the present invention not shown in the drawings, the small holes are wholly shaped to said film member 7, it is able to use this type film member 7 by always rotating it by the pulleys 4 and 5.
The axle portions pa and pa of the pulleys 4 and 5, as shown in Fig. 3, protrude through a bearing portion lb of a mounting portion lo on one face of the casing member 1, a pair of driving disks 4b and 5b which are connected to a driving means (not shown) are mounted to the outer portion of said axle portions pa and pa. Further, an O-ring member 10 is positioned between the mounting portion lo and the axle portions pa and pa to prevent ink 9 from escaping and to provide a braking effect to prevent over-running of the axle portions pa and pa.
Fig. 4 shows a color printing head block 11 which is composed of four cassette casing members 1 for Y color (yellow), M color (magenta), C color (cyan) and BULK color (black). As shown in Fig. 4, the casing members 1 are shaped as one body in a length direction of the film member movement direction. A pair of guide bars 13 are slid ably passed through a pair of guide holes 12 which are shaped to the bearing portions lb of the casing members 1. The color printing head block 11 is reciprocally moved along said guide bars 13 J whereby a cassette type serial color print-in head for a serial color printing system is attained.
The color printing head block 11 may be changed by pulsing the casing members 1 toward front direction whereby the casing members 1 are freed from a lock mechanism (not shown).
Jo t , .
Fig. 5 shows another embodiment of the present invention, only one pulley 4 is rotatable mounted in the casing member 1, an axle portion pa is rotatable driven by a driving means snot shown), an endless type film member 7 is slid ably connected with the heating surface pa thermal dot elements) of the thermal head 3. A part of the film member 7 is spread by a tension roller 15 which is mounted to an inner wall of the casing member 1 via a spring member 14.
In the embodiment of Fig. 5, the small holes of the film member 7 are repeatedly used for printing.
Fig. 6 shows another embodiment of the present invention, particularly a cassette for a printing head for a line printing system. The casing member 1 is composed of a pair of cylinder members to and id of a length almost the same as the width of the printing paper and a pair of plate members to and if. Side portions of the plate members to and if seal the ends of the cylinder members to and id.
Liquid ink 9 is housed in the cavity of the cylinder members to and id, pulleys 4 and 5 are rotatable mounted therein, the film member 7 which has a plurality of small holes and is rotatable mounted on the pulleys 4 and 5 is guided from a gap portion of a guide member 8 toward the outer portions of cylinder members to and id. One surface of said film member 7 is in contact with the heating surface pa of the thermal head 3 which is positioned in the open recess portion bet-wren the cylinder members to and id. Further, the pulleys 4 and 5 have axle portions pa and pa and driving disks 4b and 5b respectively integral therewith as shown in Fig. 7.
Therefore, the embodiments of Figs. 6 and 7 show line print-in cassette head for one color.
The embodiment of Fig. 8 shows a line color print-in head which has four cassette printing heads of Y, M, C
and BULK colors. The cassette printing heads are aligned :
`::
,.
~3~3236 in the direction of motion of the film member 7 whereby a line cassette head block 16 is constructed. Therefore, a recording paper 17 is slid ably moved on said line cassette head block 16 by a belt having a plurality of holes which is moved by a pair of pulleys 18 and 19, the recording paper 17 is tightly held to the belt 20 by a vacuum means 21.
The above noted cassette printing head is easily detachably mounted on a printing machine (not shown). The thermal head 3 is guided in the open recess portion 2 of the casing member 1 whereby the casing member 1 and thermal head 3 are constructed as one body. The ink 9 in the small holes 6 of the film member 7 is jetted on the recording paper 17 by bubble pressure when the heating surface pa of the then-met head 3 is actuated.
Referring now to a second embodiment of the present invention illustrated in the accompanying drawings, Figs. 10 to 13, numeral 1 shows a box-shaped casing member in which ink 2 is housed, and a pair of pulleys 4 and 5 are rotatable disposed in the casing member 1.
The end portions of a film 7 which is composed of a thin metal or resin material such as polyamide are con-netted to the pulleys 4 and 5. A plurality of small holes or recesses 6 as shown in Figs. 12 and 13 are shaped in the film 7, each small hole or recess 6 is about 10 200 em diameter and composes one picture element.
A driving axle 25 is rotatable disposed on the upper portion of the pulleys 4 and 5 in the casing member 1.
One end of the driving axis 7 protrudes outside of the gas-in member 1 and has a gear portion aye, Fig. 12. A pair of idlers 26 are rotatable disposed between the pulleys 4 and 5 Jo and between the pulley 5 and driving axis 7 and are geared .....
~38~36 with pulleys 4 and 5 and driving axle 7. Pulleys 4 and 5 and film 7 are rotated in the same direction by the idlers 8. Further, it is possible to rotate pulleys 5 and film 7 by friction there between instead of by gear drive.
One end portion of film 7 protrudes from an opened portion 27 (Fig. 11) which is shaped to the upper portion of the casing member 1. Film 7 is placed between a sealing member 30 and protrusions 29 of a plug 28 whereby ink is not emerged from said casing member 1. An ink filling plug 31 (Fig. 12) is provided in a side portion of the casing member 1, to enable ink to be replenished when required.
Fig. 10 shows a printer head 33 in which an ink cassette 32 is detachably attached thereto. A supporting recess portion lo of the casing member 1 is mounted on a supporting arm 16 of said printer head 33, thus making it possible to separate the ink cassette 32 from the printer head 33 by opening the supporting arm 32 and pulling a knob aye by hand A thermal head 3 is mounted on the printer head 33, four ink cassettes 32 for four colors Y, M, C and BULK are disposed, an exposed portion pa of the film 7 is contacted with an outside surface of said thermal head 3.
Each of gear members aye of the ink cassette 14 are con-netted with a timing belt 37 of a printer body 18 and are pressed by a supplemental pulley 20 which is mounted on the printer head 33.
The printer head 33 is reciprocally disposed on a pair of guiding bars 39, the driving axis 25 of the ink cassette 32 is rotated by the timing belt 37, then it is able to print on paper 41 on a platen 40.
`~' Jo ~.~.
I:
~238'~3~
Ink material in the holes or recesses 6 is jetted to the paper 41 by bubble pressure from heating of the thermal head.
According to the present invention, when the ink is exhausted, it is possible to only change a cassette, not the thermal head, whereby printing in one or more colors can continue.
Further, it is able to constantly print by moving the film during printing operation, thereby a stoppage of said holes or recesses is completely prevented.
Furthermore, it is able to constantly print at a constant density.
. . :
, , .
::
Claims (13)
EXCLUSIVE PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS
FOLLOWS:
1. A printing head cassette comprising in combina-tion;
at least one pulley member which is rotatably positioned in a casing member;
a film member which is movably contacted with a heating surface of a thermal head and is movably guided by said pulley in said casing member;
a plurality of small holes which are shaped in said film member;
a recording ink stored in said casing member;
said pulley and film members being immersed in said recording ink;
said recording ink filling said small holes;
said film member being adapted to be moved to a position adjacent said heating surface of said thermal head by rotating said pulley member.
at least one pulley member which is rotatably positioned in a casing member;
a film member which is movably contacted with a heating surface of a thermal head and is movably guided by said pulley in said casing member;
a plurality of small holes which are shaped in said film member;
a recording ink stored in said casing member;
said pulley and film members being immersed in said recording ink;
said recording ink filling said small holes;
said film member being adapted to be moved to a position adjacent said heating surface of said thermal head by rotating said pulley member.
2. In a printing head cassette as claimed in claim 1, an open recess portion guiding a thermal head, and a film guiding member which is positioned in the neighbourhood of said open recess portion.
3. A printing head cassette as claimed in claim 1, said casing member being composed of a colour printing head block which has a plurality of casing members as one body so as to extend in the direction of said film member moving direction; a plurality of different colour inks being respec-tively housed in said casing members for printing a colour image.
4. A printing head cassette as claimed in claim 1, said small holes being arranged in groups which are composed of a plurality of small holes extending along said film member, said small hole group being spaced along said film member, and separated by imperforate sections of said film.
5. A printing head cassette as claimed in claim 1, said pulley member being composed of one pulley, said film member being mounted between said pulley, said thermal head and said film guiding member, said film member being end-less.
6. A printing head cassette as claimed in claim 1, a driving disk member positioned on an outer portion of said casing member to rotate said pulley member.
7. A printing head cassette as claimed in claim 2, said printing head block being slidably mounted by a guide bar member, whereby serial color printing is performed.
8. A printing head cassette as claimed in claim 1, the width of said casing member being substantially the same as the width of the recording paper, whereby line printing is performed.
9. A printing head cassette as claimed in claim 1, a pair of pulleys being housed in said casing member, said film member having portions fixed to said pulleys and a part thereof extending outside of said casing member, a plurality of holes or recesses for housing ink which are shaped in said film member, an idler cooperating with said pulleys, a driving axle disposed in said casing member to rotate said pulleys in the same direction via said idler, whereby said film member is rotatably moved by rotating said driving axle via said pulleys.
10. A printing head cassette as claimed in claim 9, ink being housed in said casing member.
11. A printing head cassette as claimed in claim 9, said idler and pulleys being geared together.
12. A printing head cassette as claimed in claim 9, a sealing member and a plug member being mounted on said cas-ing member, said film member being supported and exposed by said sealing member and plug member.
13. A printing head cassette as claimed in claim 9, a supporting recess portion being shaped to said casing member.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59107554A JPS60252226A (en) | 1984-05-29 | 1984-05-29 | Method for measuring acoustic velocity in steel plate in on-line |
| JP107554/1984 | 1984-05-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1238236A true CA1238236A (en) | 1988-06-21 |
Family
ID=14462124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000482044A Expired CA1238236A (en) | 1984-05-29 | 1985-05-22 | Printing head cassette |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS60252226A (en) |
| CA (1) | CA1238236A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915602B (en) * | 2010-07-15 | 2011-09-14 | 哈尔滨工程大学 | Method for measuring sound velocities in elastic solids |
-
1984
- 1984-05-29 JP JP59107554A patent/JPS60252226A/en active Pending
-
1985
- 1985-05-22 CA CA000482044A patent/CA1238236A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60252226A (en) | 1985-12-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |