摘要:
The present invention provides a method and an apparatus for driving and controlling a thermal head used in a printing device, such as a tape printer, in response to the temperature variations of the printing device environment and the thermal head. According to the present invention, in the printing operation of the tape printer, measurements are made of the initial temperature T1 immediately after the power is switched on, the temperature prior to printing T2, and the ambient temperature of the thermal head each time the thermal head prints T3 (i). If the temperature difference between the initial temperature T1 and the temperature prior to printing T2 is small, the duration of the current signals provided to the thermal head is controlled in accordance with the temperature prior to printing T2, which is the most recently measured thermal head ambient temperature best reflecting the printing device environmental temperature. If the difference is large, the duration is controlled in accordance with the initial temperature T1 which then best reflects the environmental temperature. If the rate of the increase in temperature during printing T3(i) is large, the duration is controlled in accordance with the initial temperature T2 to reduce the duration. If the temperature during printing T3(i) exceeds a temperature which indicates overheating, the printing operation is aborted. Thus, the present invention allows for controlling the thermal head drive by means of the measured thermal head temperature excluding the effect of the heat generation of the thermal head and in accordance with the thermal state of the thermal head.
摘要:
A flat cable including a plurality of conductor strips which are formed by punching a single metal foil and are embedded within an insulating sheet, in which at an end portion of the flat cable, bifurcated portions are folded back one on another such that end terminals of conductor strips of one bifurcated portion are inserted between end terminals of conductor strips of another bifurcated portion, so that an order in which end terminals of the conductor strips are aligned can be changed. Therefore, an electric connection between connectors requiring crossings of conductor strips can be established by a single flat cable.
摘要:
The present invention provides a novel structure of a tape cartridge accommodating a printing tape and an ink ribbon used for printing, which prevents the printing tape from being stuck in a cartridge case or the ink ribbon from being slackened. The tape cartridge of the invention has a mechanism for preventing an end of the tape from being reversely moved back into the cartridge case. A typical structure of the mechanism includes an anti-inversion system which prevents a tape core having a tape wound thereon from rotating in a reverse direction, that is, a direction opposite to a normal rotating direction for printing. The anti-inversion effects are removed when the tape cartridge is set in a printing device such as a tape writer to ensure smooth feeding of the tape for printing. When the tape is forcibly pressed back into the cartridge case, a movable platen clamps the tape between the platen and a fixed wall to prevent reverse movement of the tape. The tape cartridge of the invention also includes an anti-slack mechanism for preventing slack of the ink ribbon through engagement of a ribbon winding core with an anti-rotational engagement piece. Engagement of this anti-slack mechanism is also released when the tape cartridge is set in the printing device.
摘要:
Analog-to-digital conversion and the CIF format conversion are performed by the video camera whose pixel number is an integral multiple or its reciprocal of that of the CIF. Therefore, it is not necessary to employ the line interpolation circuit using a large-sized memory, so that the circuit arrangement of the television conference system, the video-telephone system and so on using the codec can be simplified and the production costs thereof can be reduced. Since the video camera output is digital, even if the sampled phase fluctuates, the compression efficiency in the codec (or the coder) is prevented from being lowered and the compression efficiency can be improved.
摘要:
A major factor of workloads for a user in a tape printing apparatus to execute a layout display is to confirm whether or not line end positions of the respective lines of an inputted sentence are aligned with each other. The inputted sentence is displayed at fixed positions for every line irrelevant to a print image (layout) along the main scanning direction, and also is displayed along the sub-scanning direction in such a layout manner that a mixed print image with a character portion and a background portion for every lien is faithfully laid out and displayed. As a consequence, the print image process operations effected in the respective portions of a layout display apparatus can be made simple, and thus a high-speed layout display can be achieved.
摘要:
A tape printing device which prints an input text consisting of one or more lines of characters on tape. In case of this tape printing device, a judgement portion judges whether the number of lines of characters of the input text is not less than two, and whether or not a character-size entrusting mode, in which a character size to be assigned to each line is automatically determined, is selected. Subsequently, in case where the character-size entrusting mode is selected and the number of lines of characters of the input text is not less than two, a character-size determination portion generates length information representing a length of each line, to which a same character size is assigned, and determines the character-size attribute of each line according to the length information in such a manner to equalize lengths of at least two longest lines of characters of the input text. Thereafter, a print portion performs a printing of the input text according to the determined character-size attribute of each line.
摘要:
A method and apparatus for the treatment of an effluent containing an organic chlorine compound in the presence of a porous iron type metallic article and hydrogen peroxide thereby effecting oxidizing decomposition of the organic chlorine compound, operated by a procedure which comprises causing the organic chlorine compound having hydrogen peroxide incorporated preparatorily therein to be circulated through a closed vessel having the porous iron type metallic article disposed therein thereby effecting oxidizing decomposition of the organic chlorine compound and then simultaneously circulating and aerating the effluent containing the organic chlorine compound under the condition of keeping the upper part of the closed vessel in an opened state thereby effecting oxidizing decomposition of the organic chlorine compound or causing the gaseous phase stagnating in the upper part of the vessel to be introduced into the effluent.