Information processing apparatus

Abstract: An information processing apparatus having an input portion for inputting information, a recording portion capable of recording information input by the input portion to a recording medium and a moving mechanism capable of vertically moving the recording portion and holding the recording portion at a predetermined position.

Description: The present invention relates to an information processing apparatus and, more particularly, to an information processing apparatus such as a personal computer, a word processor or an electronic typewriter, each having a keyboard and a printing unit. Hitherto, there have been information processing machines such as personal computers, word processors, electronic typewriters and the like, of the type having a manipulation input portion, such as a keyboard, and an integrally formed display unit. Recently, various machines of the so-called "laptop" type have become popular, exhibiting excellent carrying and folding facilities and arranged in such a manner that a display unit is rotatively supported by a main body, housing the manipulation input portion, wherein the display unit is superposed on the manipulation input portion when the apparatus is carried or stored and the display unit is stood erect when commencement of operation of the machine is desired. In addition, a machine of the aforementioned type may have a printer unit mounted to the rear portion of the main body of the apparatus, at the reverse side of the erect display. An information processing apparatus is disclosed in US-A-4946300 in which a printer is hingedly moved from a storing position to a printing position Furthermore, so-called "note type", "book type" or "palm top" small and thin information processing machines, each exhibiting further improved carrying and folding facilities, are known. With this tendency, a small and low-priced printer, which can be easily used by an operator, has been suggested. Also, known machines of this type also have the printer disposed to the rear portion of the main body thereof. Another structure is known, arranged in such a manner that the manipulation input portion is foldable onto the main body of the apparatus which has a display unit and a printer is positioned in the main body of the apparatus towards the back of the display and a recording medium is inserted and discharged to an from an upper portion of the main body of the apparatus. Futhermore, there are a multiplicity of so-called desk top machines, each having a CRT display, with printers, each of which is disposed in the upper portion of the display. The requirements of the location of a mounted printer may be summarised as follows: (1) The limitation on the thickness of the recording medium must be suspended. That is, even if a thick recording medium (hereinafter called a "thick paper sheet") such as a postcard and an envelope is used in the recording operation, as an alternative to the ordinary recording medium, the recording operation must be performed satisfactorily. (2) The manipulation required at the time of the recording operation must be performed easily and simply. (3) An excellent visibility of the subject to which data is recorded must be obtained during the recording operation. That is, the recording medium transmitted as a result of the recording operation must easily be seen while being contrasted with the displayed image. (4) The size of the information processing apparatus must be reduced while satisfying the aforesaid requirements. However, the conventional information apparatus cannot satisfactorily meet the aforesaid requirements. The aforesaid known information processing machines usually have a printer in which the recording medium is wound around a platen roller to be fed and subjected to the recording process. Therefore there arises a common problem in that a limitation is present in reducing the diameter of the paper feeding roller because it is necessary for the roller to also feed thick paper sheets such as postcards and envelopes. In order to protect the thick paper sheet from being undesirably folded, a considerably large space is required, and thereby the size of the printer unit cannot be reduced satisfactorily. Some of the aforesaid note type book type machines have printers which can be detached from the main body of the apparatus, or stood erect by turning it to feed the recording medium in a horizontal plane in the state where the printer is removed from the main body or in the state where the printer is stood erect. As a result, the size of the recording medium feeding rollers (paper feeding rollers) of the aforesaid machines can be reduced and thereby the overall size of the printer unit can be reduced. Furthermore, the thick paper sheet can be fed as desired. However, a complicated operation such as separating the printer unit from the main body of the apparatus or turning the printer unit to be stood erect must be performed at the time of the recording operation. What is even worse, the apparatus of a type having the printer which is turned at the time of the recording operation must have a mechanism therefor, causing a problem to arise in that the size of the printer unit cannot be reduced. In an information processing apparatus of the type having the printer unit disposed in the rear portion of the display unit, an operation of folding the display unit must be performed in order to set the recording medium to the printer unit. Furthermore, another problem in terms of the manipulating facility arises in that the subject to which data is recorded and the displayed image cannot be contrasted with each other. According to the present invention, there is provided an information processing apparatus comprising: an input means for inputting information; a printing portion for printing the information input by said input means on a recording medium, said input means and said printing portion being arranged in a main body of the apparatus; conveying means for conveying said recording medium to said printing portion; and a moving mechanism for moving said printing portion between a first position and a second position; characterised in that said printing portion is arranged for printing on said recording medium in either said first or second positions; said conveying means comprises first conveying means for conveying said recording medium along a first conveying path to said printing portion in said first position and second conveying means for conveying said recording medium along a second conveying path to said printing portion in said second position; and said first and second conveying paths are opposed and substantially parallel. Embodiments of the present invention will now be described with reference to the accompanying drawings, in which: Fig. 1 is a perspective view which illustrates a word processor for illustrative purposes only; Fig. 2 is a perspective view which illustrates a printer unit for illustrative purposes only; Fig. 3 is a cross sectional view which illustrates a state in which the printer unit of the apparatus shown in Fig. 1 has been moved to the upper position; Fig. 4 is a cross sectional view which illustrates a state where the printer unit of the apparatus shown in Fig.1 has been accommodated in the body of the apparatus; Figs. 5A and 5B are perspective views which illustrate two states in which the apparatus according to a first embodiment of the present invention; Fig. 6 is a cross sectional view which illustrates the state shown in Fig. 5A; Fig. 7 is a cross sectional view which illustrates the state shown in Fig. 5B; Fig. 8 is a cross sectional view which illustrates an embodiment of an elevating mechanism of the printer unit; Fig. 9 is a cross sectional view which illustrates a state where the printer unit according to the embodiment shown in Fig. 8 has been accommodated; Fig. 10 is a cross sectional view which illustrates another embodiment of the elevating mechanism of the printer unit; Fig. 11 is a cross sectional view which illustrates another state of the printer unit according to the embodiment shown in Fig. 10; Fig. 12 is a cross sectional view which illustrates another embodiment of the elevating mechanism of the printer unit; Fig. 13 is a cross sectional view which illustrates another state of the printer unit according to the embodiment shown in Fig. 12; Fig. 14 is a cross sectional view which illustrates another embodiment of the printer unit; Fig. 15 is a perspective view which illustrates another modification of the word processor to that shown in Fig. 5; and Fig. 16 is a cross sectional view which illustrates the word processor shown in Fig. 15. Fig. 1 is a perspective view which illustrates a personal computer comprising an information processing apparatus for illustrative purposes only. A personal computer 71 comprises an apparatus body 101, a keyboard 102, an upper cover 104 having a display unit 103 and a printer 72. The upper cover 104 is rotatively fastened to the apparatus body 101 by hinges 104a disposed at the two side ends of the rear end portion of the apparatus body 101. Thus, the upper cover 104 is turned to be opened to a position at which its display unit 103 can easily been seen when the apparatus is used, and is closed to act as a cover when the apparatus is not used. The display unit 103 has a liquid crystal device as the display device because the thickness of the display unit can be reduced. The upper cover 104 and the display unit 103 to be included in the upper cover 104 do not have the same level planes. That is, since the structure is arranged in such a manner that the electrical connecting portion (omitted from illustration) of the display unit 103 is covered with the upper cover 104, a predetermined step is generated between their surfaces. A slanted surface 104h is formed to make a predetermined angle with which the aforesaid step between the upper cover 104 and the display unit 103 can be joined by a smooth gradation. As a result, when a recording paper sheet is fed on the display unit 103 in a manner to be described later, a problem which can be taken place in that the leading portion of a recording paper sheet 73 is caught by the aforesaid step. A latch plate 104c is fastened to the top end portion of the cover 104 by hinges (omitted from illustration) in such a manner that the latch plate 104c is able to turn by an angular degree of 90°, the latch plate 104c being opened to form the same plane in cooperation with the upper cover 104 as shown in Fig. 1 when the apparatus is used. A latch groove 104d is formed at the central portion of the latch plate 104c. The upper cover 104 is structured in such a manner that, when the upper cover 104 is closed, the latch plate 104c is turned so as to be fitted within a recessed portion 101b formed in the body 101. Furthermore, the latch groove 104d is fastened to a projection 101a formed on the recessed portion 101b. As a result, the upper cover 104 can reliably secured to the body 101. The printer unit 72 having an ink jet recording head is disposed in front of the display unit 103. When the printer unit 72 is used, that is when the recording operation is performed, the printer unit 72 is upwards slid on the apparatus body 101. On the other hand, the printer unit 72 is accommodated in the body 101. The vertical movement of the printer unit 72 may be performed by the operation of a lever or a dial or the like by a user after a change generated due to this operation is converted into the vertical movement by a known means. As an alternative to this, the vertical movement may be automatically performed as a portion of the recording operation by a structure having a motor or the like. A plurality of structural examples to achieve the aforesaid vertical movement will be described later. The recording paper sheet 73 is fed from this side of the apparatus through a paper feeding portion 201f formed in the printer unit 72, and is discharged along the surface of the upper cover 104 and the display unit 103 after data has been recorded by the printer unit 72. It is preferable that the surface of the display unit 103 has a low friction coefficient and excellent wear resistance because the recording paper sheet 73 slides on it at the time of the discharge operation. Hence, it is preferable that the surface of the display unit 103 be coated with fluororesin or the like. A conventional structure of the keyboard 102 may be employed. Furthermore, a control circuit and the like each in the form of substrates are disposed in the apparatus body 101. In addition, an waste-ink absorber for accumulating waste ink discharged from the printer unit 72 is disposed in the body 101 as described later. In order to smoothly evaporate ink from the waste ink absorber, louvers 101 l are formed in the cover members disposed on the two sides of the body 101. As described above, according to this arrangement, the passage through which the recording paper sheet is fed can be made substantially horizontal, so that thick paper sheets can be smoothly fed. Furthermore, since the movement of the printer unit 72 is allowed to be in only the vertical direction, the direction in which the recording operation is performed by the recording head can be always constant. In addition, the printer unit 72 is disposed in this side as compared with the position of the display unit 103, so that various manipulations of the printer can easily be performed while eliminating a necessity of a complicated action of closing the upper cover 104. Fig. 2 is a perspective view which illustrates the detailed structure of the printer unit 72 shown in Fig. 1 while omitting the cover. Fig. 3 is a cross sectional view which illustrates a state where the printer unit 72 has been moved to the upper position on the apparatus body. Then, the mechanism of the printer unit 72 will now be described with reference to Figs. 2 and 3. The printer unit 72 has its case member comprising a front cover 222f, a rear cover 222b, a cover 223 and a base 202. The base 202, which is a structural member of the printer unit, has a W-shape like cross sectional shape extending, together with other case members, to cover a range in which the recording head to be described later moves. Reference numeral 202a represents a platen which forms a portion of the base 202 in such a manner that it extends in the range in which the recording head moves so as to confront a discharge port of the recording head while maintaining a predetermined interval from it. As a result, in the recording operation, the surface of the recording paper sheet 73 to which ink is discharged is restricted as desired during feeding of the recording paper sheet 73, so that the recording paper sheet can be maintained flat and as well as its position can be maintained as desired. A cut portion 202b is formed in a portion of the side end portion of the home position of the base 202, the cut portion 202b acting to accommodate a recovery unit 203. The recovery unit 203 has a cap 203a, a drive motor (omitted from illustration), a suction pump (omitted from illustration) and an exhaust ink tube 203b and the like. As a result, clogs which will be taken place in the discharge port or the like of the recording head due to ink, the viscosity of which has been increased, can be prevented, ink in the recording head cannot be dried and operations for maintaining the discharging performance of the recording head can be performed. The waste ink absorber 204 is fastened to the bottom surface in the apparatus body 101 in such a manner that it extends in parallel to the platen 202a in substantially the same range of the platen 202a. The absorber 204 is made of a laminated paper sheet or porous material such as polyester fabric sponge and arranged to absorb, via a tube 203b, waste ink discharged from the recording head by the recovery unit 203 so as to accumulate it. Since ink is evaporated to atmospheric air during the time in which ink is held, the ink holding performance of the absorber 204 cannot substantially be deteriorated and thereby the absorber 204 can be used semipermanently. The printer unit 72 has a pair of guide shafts 205 and 207 for guiding the movement of a recording head cartridge 212 to be described later. The guide shaft 205 is fastened to either of corresponding side plates (omitted from illustration) vertically disposed at the two end portions of the base 202. The guide shaft 205 has, on the upper surface thereof, a rack 205a having a length 205a which is the same as the distance through which the aforesaid recording head cartridge 212 moves. The rack 205a and a pinion of a carrier moor to be described later are engaged to each other. A plurality of recessed portions are formed at predetermined positions in the lower surface of the guide shaft 205 so as to rotatively receive a pinch roller 206. The pinch roller 206 is urged downwards by a spring (omitted from illustration). The other guide shaft 207 disposed at the rear of the guide shaft 205 and running parallel to the guide shaft 205 is, similarly to the guide shaft 205, secured to the aforesaid side plates stood erect at the two end portions of the base 202. A plurality of recessed portions are formed at predetermined positions in the lower surface of the guide shaft 207 similarly to those formed in the guide shaft 205. The aforesaid recessed portions rotatively receive sheet retaining rollers 208. Each of the sheet retaining rollers 208 is formed into a spur-like shape or a disc-like shape and as well as the circumferential end surfaces of it is coated with water-repellent material such as a fluororesin. Thus, unfixed ink cannot easily adhere to the roller 208 immediate after the recording operation has been completed. A carrier 209 is slidably fastened to the guide shafts 205 and 207. A bearing portion of the carrier 209 which engages to the guide shafts 205 and 207 is formed into a a shape from which a lower portion is cut. As a result, the area of the carrier 209, which engages to the guide shafts 205 and 207, can be reduced and thereby the contact between the carrier 209 and the recording paper sheet which is being fed can be prevented. The carrier 209 integrally has, on either side surface thereof, a motor fastening plate 209a. Furthermore, a carrier motor 210 is secured to the fastening plate 209a. A pinion gear 211 fastened to the rotational shaft of the carrier motor 210 is engaged to the rack 205a of the guide shaft 205. As a result of the structure thus arranged, when the motor 210 is rotated in the forward or rearward direction, the carrier 209 is able reciprocate along the guide shafts 205 and 207. The recording head cartridge 212 is constituted by integrally forming a recording head 212H and an ink tank 212T so as to be detachably fastened to the carrier 209. As a result, when ink has been exhausted in the ink tank, a novel head cartridge can be loaded while interchanging the recording head. The recording head according to this embodiment is arranged to form bubbles by utilizing thermal energy so as to discharge ink by the generated bubbles. The discharge port is formed in the recording head 212H in such a manner that it downwards discharge ink and is formed to confront the platen 202a at a predetermined interval. A flexible cable 213 is secured to the carrier 209 at an end portion thereof so as to be electrically connected to the recording head 212 at a contact (omitted from illustration) thereof. The flexible cable 213 has loops formed at predetermined positions so as to follow the movement of the carrier 209 and the vertical movement of the overall body of the printer unit 72. Another end portion of the flexible cable 213 is connected to a control substrate (see Fig. 3) disposed in the apparatus body. A paper feeding roller 214 is disposed to maintain a predetermined interval from the guide shaft 205 and running parallel to the same. The paper feeding roller 214 is formed by winding material such as rubber having a large friction coefficient around the roller shaft 215 to form a cylindrical shape. As an alternative to winding the rubber or the like, material such as urethane having a large friction coefficient may be uniformly applied to the same to form a thin layer. Similarly to the guide shafts 205 and 207, the roller shaft 215 is rotatively supported by the side plates disposed at the two side end portions of the base 202. The paper discharge roller 217 is disposed in parallel to the guide shaft 207 while maintaining a predetermined interval from the same. The structure of the paper discharge roller 217 is arranged to be the same is that of the aforesaid paper feeding roller 214. A roller shaft 218 of the paper discharge roller 217 is rotatively supported by the side plats of the base 202 similarly to the roller shaft 215. A paper feeding pulley 219 is secured to an end portion of the roller shaft 215, while a paper discharge pulley 220 is secured to an end portion of the roller shaft 218. The pulleys 218 and 220 have a timing belt 221 arranged therebetween. Furthermore, a paper feeding motor 216 is fastened to an end portion of the base 202, so that its rotational force is transmitted to the paper feeding roller shaft 215 via a transmission mechanism (omitted from illustration). In the thus arranged structure, the rotation of the paper feeding roller 214 generated by the rotation of the paper feeding motor 216 is transmitted to the paper discharge roller 217 via the pulleys 219, 211 and the belt 221. The paper discharge roller 217 has a diameter which is slightly larger than that of the paper feeding roller 214 so as to be capable of feeding the paper sheet by a larger quantity than that of the paper feeding roller 214. As a result, the recording paper sheet is always pulled from a rear stream position during feeding of the recording paper sheet, causing the feeding operation to be performed stably. As an alternative to making the diameters of the rollers to be different from each other, the pulley has a slightly larger diameter in its rear stream portion. The aforesaid rollers have relatively weak feeding force in their rear stream portion so as to eliminate the looseness of the paper sheet and to discharge the rear end portion of the paper sheet. The aforesaid front case 222f has the paper feeding port 201f through which the recording paper sheet 73 is inserted for the purpose of supplying the recording paper sheet 73 to the apparatus, a portion of the front case 222f being fastened to the base 202. The front case 222f and the rear case 222b respectively have vertical guide rails 222a in the their two end portions for the purpose of elevating the overall body of the printer unit. The printer cover 223 is fastened to the front case 222f via hinges so that it can be opened/closed. As a result, the recording head cartridge can be interchanged after the cover 223 has been opened. Referring to Fig. 3, a circuit board 224 having a CPU for executing the operation of controlling the apparatus or the like, peripheral ICs, a memory device, a driver IC, and the like mounted on the surface thereof is accommodated in the apparatus body 101. The apparatus body 101 has, in a portion thereof, a guide plate 101G formed into a thin-plate shape and having a spherical surface to guide the recording paper sheet 73 discharged after the recording operation to the portion on the display unit. In order to prevent an interference between the guide plate 101G and the upper cover 104, the upper cover 104 has a slit at its position which confronts the guide plate 101G. The structure of the guide plate 101G may be arranged in such a manner that it is pushed down when the upper cover 104 is moved or is pushed down in synchronization with the downward movement of the printer unit 72. Fig. 4 illustrates a state where the printer unit 72 is accommodated in the apparatus body 101. In this state, the ink absorber 204 is accommodated in the recessed portion of the base 202. As described above, the vertical movement of the printer unit 72 is realized by the lever or the transmitting mechanism (omitted from illustration) disposed at the end portion of the printer unit 72. Figs. 5A and 5B respectively are perspective views which illustrate a personal computer according to a first embodiment of the present invention. Hereinafter the same reference numerals as those of the previous arrangement are given the same reference numerals and their descriptions are omitted. Fig. 5A illustrates a case in which a recording paper sheet is a thick and relatively short medium such as an envelope and a postcard. In this case, the printer unit 72 is positioned on the apparatus body 101 and the recording paper sheet is inserted through a paper feeding port 101c formed in the body 101 before it is discharged through a first paper discharge port 101e formed in the rear portion of the apparatus. At this time, the first paper supply port 101c is able to also serve as a guide for restricting the horizontal position of the recording paper sheet so as to smoothly make the recording paper sheet to be set smoothly. In the aforementioned case in which the recording paper sheet is a postcard or the like having a relatively short length in the direction in which it is fed, the keyboard is not covered by the recording paper sheet set as described. Therefore, the manipulation by using the keys can be performed even if the recording operation is being performed. Furthermore, the passage through which the recording paper sheet is fed can be made to be straight, so that feeding of a thick paper sheet can be fed smoothly. Fig. 5B illustrates a case in which a thin and long recording paper sheet such as an ordinary A4 sheet or a letter is used. In this case, the recording paper sheet 73 is inserted through a second paper supply port 101d formed below the keyboard 102. Then, the recording paper sheet 73 passes a portion above a substrate 224 in the apparatus to be moved in the feeding passage which penetrates the body of the apparatus before it is discharged through the second discharge port 101f formed in the rear portion of the apparatus. Also in this case, the recording paper sheet is not present on the keyboard 102 and the display unit 103, so that a variety of manipulations can be performed by using the keyboard and the display unit even if the recording operation is being performed. Figs. 6 and 7 respectively are cross sectional views which illustrate the same states shown in Figs. 5A and 5B. In the case shown in Fig. 5A where the printer unit 72 is positioned on the apparatus body 101, the feeding passage for the recording paper sheet is, as shown in Fig. 6, formed by the paper feeding port 101c, the paper feeding port 201f, the paper discharge port 201b and the paper discharge port 201b of the printer unit 72, and the paper discharge port 101e formed in the rear portion of the apparatus. In a case where the printer unit 72 is used in such a manner that it is accommodated in the apparatus body 101, the passage through which the recording paper sheet is fed is, as shown in Fig. 7, formed by the paper feeding port 101d, the paper feeding port 201f and the paper discharge port 201b of the printer unit 72 of the printer unit 72 and the paper discharge port 101f disposed in the rear portion of the apparatus. Figs. 8 and 9 illustrate another mechanical example of the printer unit elevating mechanism. That is, this example is arranged in such a manner that the printer unit 72 is vertically moved in synchronization with the opening/closing operation of the upper cover 104. Therefore, a drive gear 104e having the same axle with the shaft of the hinge 104a of the upper cover 104 is secured to the upper cover 104. Furthermore, in order to transmit the rotation of the drive gear 104e, an idle gear 104f and a pinion gear 104g are provided for the apparatus, the pinion gear 104g and a rack 223b provided for the printer unit 72 are engaged to each other. Thus, the printer unit 72 can be vertically moved in synchronization with the opening/closing operation of the upper cover 104. Figs. 10 and 11 illustrate another example of the printer unit elevating mechanism. In this example, the printer unit 72 is upwards urged by a spring 223s. When the printer unit 72 is accommodated in the body 101, the printer unit 72 locked by a lock lever 224, which is allowed to turn in only one direction, so that its upward movement is inhibited. In a case where the printer unit 72 is upwards moved, a button 225 is depressed to turn the lock lever 224, so that locking of the printer unit 72 is suspended. As a result, the printer unit 72 is upwards moved by the urging force of the spring 223s. Since an idle gear 104k is sectioned into two portions by a one-way clutch at this time, the drive gear 104e is not rotated. When the upper cover 104 is closed, the rotation of the drive gear 104e is transmitted to a rack 223b via the idle gear 104k and the pinion gear 104g, so that the printer unit 72 is moved downwards. Figs. 12 and 13 another example of the printer unit moving mechanism. In this example, a motor 227 and a pinion gear 226 are provided additionally so as to vertical move the printer unit by electric power. Fig. 14 illustrates another example of the structure of the printer unit. The printer unit according to this example is arranged in such a manner that the upper half portion of the unit can be opened/closed by dividing the unit at a paper feeding port 201f and a paper discharge port 201b. Thanks to the structure thus arranged, eliminating the paper jamming and cleaning of the surface of the platen can easily be performed. Fig. 15 and 16 illustrate a modification to the embodiment shown in Figs. 5 to 7. In this embodiment, a switch-over plate 228 is disposed in the recording paper sheet feeding passage which reaches the paper supply port 101d. When the switch-over plate 228 is stood or pushed down, the direction in which the recording paper sheet is discharged can arbitrarily selected. Thus, the recording paper sheet is discharged through the paper discharge port 101g to the portion adjacent to the display unit in a case where an operator does not see the display unit 103 at the time of the operation of the apparatus. Therefore, the space required to discharge the recording paper sheet can be eliminated and as well as the result of the recording operation can easily be confirmed. Although the aforesaid embodiments are described about the information processing apparatus arranged to have the components formed integrally, the present invention is not limited to this. For example, another structure may be employed in which the detachable components can be integrally mounted on the information processing apparatus in such a manner that they hold one another so that the integrated apparatus can be carried. According to an embodiment of the present invention, an excellent effect can be obtained in a recording head and a recording apparatus of a type in which ink is discharged by utilizing thermal energy among the ink jet recording apparatuses. It is preferable to employ the typical structure and the principle of structures disclosed in, for example, U.S.P. No. 4,723,129 and U.S.P. No. 4,740,796. This system can be adopted in a so-called "On-Demand" type and "Continuous" type structures. In this system, an electrothermal conversion member disposed to align to a sheet or a liquid passage in which liquid (ink) is held is supplied with at least one drive signal which corresponds to information to be recorded and which enables the temperature of the electrothermal conversion member to be raised higher than a nuclear boiling point, so that thermal energy is generated in the electrothermal conversion member and film boiling is caused to take place on the surface of the recording head which is heated. As a result, bubbles can be respectively formed in liquid (ink) in response to the drive signals. Due to the enlargement and contraction of the bubble, liquid (ink) is discharged through the discharge port, so that at least one droplet is formed. In a case where the aforesaid drive signal is made to be a pulse signal, a further satisfactory effect can be obtained in that the bubble can immediately and properly be enlarged/contract and liquid (ink) can be discharged while exhibiting excellent responsibility. It is preferable to employ a drive signal of the pulse signal type disclosed in U.S.P. 4,463,359 and U.S.P. 4,345,262. Furthermore, in a case where conditions for determining the temperature rise ratio on the aforesaid heated surface disclosed in U.S.P. No. 4,313,124 are adopted, a further excellent recording operation can be performed. In addition to the structure (a linear liquid passage or a perpendicular liquid passage) of the recording head formed by combining the discharge ports, the liquid passage and the electrothermal conversion member as disclosed in the aforesaid specifications, a structure disclosed in U.S.P. No.4,558,333 and U.S.P. 4,459,600 in which the heated portion is disposed in a bent portion is included in the scope of the present invention. Furthermore, the present invention can effectively be embodied in a structure in which a common slit is made to be the discharge portion of a plurality of electrothermal conversion members and which is disclosed in Japanese Patent Laid-Open No. 59-123670 and a structure in which an opening for absorbing thermal energy pressure wave is formed to align to the discharge port and which is disclosed in Japanese Patent Laid-Open No. 59-138461. A full line type recording head having a length which corresponds to the width of the maximum recording medium which can be recorded by the recording apparatus may be a structure capable of realizing the aforesaid length and formed by combining a plurality of recording heads as disclosed in the aforesaid specifications or a structure formed by a integrally formed recording head. The present invention will enable the aforesaid effects to be exhibited further effectively. In addition, the present invention can also be effectively adapted to a structure having an interchangeable chip type recording head which can be electrically connected to the body of the apparatus or to which ink can be supplied from the body of the apparatus when it is mounted on the body of the apparatus or a cartridge type recording head integrally formed to the recording head. It is preferable to additionally provide the recording head recovery means and an auxiliary means of the recording apparatus according to the present invention because the effect of the present invention can further be stabled. Specifically, an effect can be obtained in that the recording operation can be stably performed by providing a recording head capping means, a cleaning means, a pressurizing or sucking means, an electrothermal conversion member or another heating device or an auxiliary heating means formed by combining the aforesaid elements and by performing a previous discharge mode in which a discharge is performed individually from the recording operation. Furthermore, the recording mode of the recording apparatus may be a recording mode for recording only main color such as black and a structure may be that formed by integrally forming recording heads or a structure formed by combining a plurality of recording heads. The present invention can significantly effectively be adapted to an apparatus having a recording head of a plurality of colors or at least one full color head arranged to mix colors. Although the aforesaid embodiments use liquid ink, ink which is solid at room temperature or ink which is softened at room temperature can be used. In the aforesaid ink jet apparatus, the temperature of ink is usually controlled in a range from 30°C to 70°C to make the viscosity of ink to be in a stable discharge range and thereby ink which is liquefied in response to a record signal supplied may be used. Furthermore, ink the temperature rise of which is prevented by positively using the temperature rise due to the thermal energy as energy of state change from the solid state to the liquid state of ink or ink which is solidified when it is allowed to stand in order to prevent the evaporation of ink may be used. That is, ink which is liquefied by thermal energy such as ink liquefied by thermal energy supplied in response to the record signal and discharged as ink droplet or ink which is solidified when it reaches the recording medium can be employed in the present invention. In this case, ink may be, in the form of liquid or solid, held by a recess of a porous sheet or a through hole as disclosed in Japanese Patent Laid-Open No. 54-56847 or Japanese Patent Laid-Open No. 60-71260 and disposed to confront the electrothermal conversion member. It is most preferable that ink be discharged by the aforesaid film boiling method. Although the invention has been described in its preferred form with a certain degree of particularly, it is understood that the present disclosure of the preferred form has been changed in the details of construction and the combination and arrangement of parts may be resorted to without departing from the scope of the invention as hereinafter claimed.

Claims: An information processing apparatus comprising: an input means (102) for inputting information; a printing portion (72) for printing the information input by said input means (102) on a recording medium, said input means (102) and said printing portion (72) being arranged in a main body (101) of the apparatus; conveying means (101c, 101d, 101e, 101f, 101g) for conveying said recording medium to said printing portion (72); and a moving mechanism for moving said printing portion (72) between a first position and a second position; characterised in that said printing portion (72) is arranged for printing on said recording medium in either said first or second positions; said conveying means (101c, 101d, 101e, 101f, 101g) comprises first conveying means (101c, 101e) for conveying said recording medium along a first conveying path to said printing portion (72) in said first position and second conveying means (101d, 101f) for conveying said recording medium along a second conveying path to said printing portion (72) in said second position; and said first and second conveying paths are opposed and substantially parallel. An information processing apparatus according to claim 1 including a display (103) for displaying input information arranged in a foldable lid (104) hingedly attached to said main body (101). An information processing apparatus according to claim 2 wherein said input means comprises a keyboard (102) and said printing portion is arranged between said display (103) and said keyboard (102). An information processing apparatus according to any preceding claim wherein said printing portion (72) is arranged to extend from said main body (101) in said second position and to retract into said main body (101) in said first position. An information processing apparatus according to any preceding claim wherein said printing portion (72) includes an ink jet printing head for printing ink onto said recording medium. An information processing apparatus according to claim 1 wherein said input means comprises a keyboard (102), and including a lid (104) hingedly attached to said main body (101) for covering said keyboard (102) and said printing portion (72) in a closed position. An information processing apparatus according to claim 6 wherein said lid (104) includes a display (103) for displaying input information. An information processing apparatus according to any preceding claim wherein said first conveying means (101c, 101e, 101g) is adapted to convey said recording medium over said input means (102) and said second conveying means (101d, 101f) is adapted to convey said recording medium under said input means (102). An information processing apparatus according to claim 2 wherein said first conveying means (101c, 101e) is adapted to convey said recording medium out from said printing portion (72) behind said display (103). An information processing apparatus according to claim 2 or claim 9 wherein said second conveying means (101d, 101f, 101g) is adapted to convey said recording medium out from said printing portion (77) in front of said display (103). An information processing apparatus according to any preceding claim wherein said first conveying means (101c, 101e) and said second conveying means (101d, 101f) are arranged to convey different kinds of said recording media. An information processing apparatus according to claim 11, wherein said printing portion (72) is provided with an ink jet recording head discharging ink from an ink discharge opening. An information processing apparatus according to claim 12, wherein said ink jet recording head comprises an electro-thermal converting member generating thermal energy for discharging ink from said ink discharge opening.

Inventors: ASANO JUNICHI, BEKKI TOSHIHIKO, HAGIWARA HIROYUKI, HASEGAWA KOH, HIRANO HIROFUMI, INOUE HIROYUKI, KANNO TAKUMA, KONDO HIROATSU, OZAWA TOSHIAKI, SAITO TAKASHI, WADA TOSHIHIDE, ASANO, JUNICHI, BEKKI, TOSHIHIKO, HAGIWARA, HIROYUKI, HASEGAWA, KOH, HIRANO, HIROFUMI, INOUE, HIROYUKI, KANNO, TAKUMA, KONDO, HIROATSU, OZAWA, TOSHIAKI, SAITO, TAKASHI, WADA, TOSHIHIDE, ASANO, JUNICHI, C/O CANON KABUSHIKI KAISHA, BEKKI, TOSHIHIKO, C/O CANON KABUSHIKI KAISHA, Hagiwara, Hiroyuki, c/o Canon Kabushiki Kaisha, HASEGAWA, KOH, C/O CANON KABUSHIKI KAISHA, HIRANO, HIROFUMI, C/O CANON KABUSHIKI KAISHA, INOUE, HIROYUKI, C/O CANON KABUSHIKI KAISHA, Kanno, Takuma, c/o Canon Kabushiki Kaisha, Kondo, Hiroatsu, c/o Canon Kabushiki Kaisha, Ozawa, Toshiaki, c/o Canon Kabushiki Kaisha, SAITO, TAKASHI, C/O CANON KABUSHIKI KAISHA, WADA, TOSHIHIDE, C/O CANON KABUSHIKI KAISHA
Applicants: CANON KK, CANON KABUSHIKI KAISHA
Application year: 1992
Main classification: G06F15
IPC codes: G06F1, B41J3, B41J29