Abstract: The present invention provides a recording system including a recording head for performing recording on a sheet, a first rotary member disposed at a downstream side of the recording head and contacting an unrecorded surface of the sheet on which the recording is performed by the recording head and adapted to apply a feeding force to the sheet, and a second rotary member being provided at its peripheral surface with a plurality of teeth and contacting a recorded surface of the sheet with the tips of the teeth thereof, and cooperating with the first rotary member to feed the sheet. The plural teeth of the second rotary member are staggered with other teeth in a direction transverse to a sheet feeding direction. A member is provided to clean the first and second rotary members.

Abstract: An image recording apparatus has a first recording-sheet storing section for storing a first recording sheet, a second recording-sheet storing section for storing a second recording sheet, a serial recording head for effecting image recording on the first recording sheet while travelling with respect to the first recording sheet, a line recording head for effecting image recording on the second recording sheet when the second recording sheet is in a stationary state, a first conveying device for conveying the first recording sheet to the position of the serial recording head; and the second conveying device for conveying the second recording sheet to the position of the line recording head. With this arrangement, it is possible to selectively effect serial recording and line recording and, in addition, to effect recording from an original document as well as recording and reproduction of the thus-read original document.

Abstract: A replaceable ink cartridge can be inserted into and removed from a bubble jet printer receptacle for removably mounting the cartridge. The cartridge when mounted will cooperate with a hollow needle for supplying liquid ink to a print head and a pipe for removing waste ink from the head. The cartridge includes a container, a liquid ink reservoir and an absorber for waste liquid ink in the container, an outlet and an opening on the front wall of the container, and a label secured to the top wall of the container. The label contains a surface wiring resistance pattern including contact portions which are spaced apart and have an electric connection between them. When the container is mounted in the receptacle, the needle enters the outlet to connect the ink reservoir to the head, and the absorber enters a waste ink pipe opening. The contact portions then make sliding contact with spaced-apart electric terminals in the printer, connecting the terminals and thereby activating a control circuit in the printer.

Abstract: A cap for capping the single surface of a recording head that is formed with a plurality of groups of ejection holes for inks of different colors so as to maintain an ink-ejectable condition of the recording head has an interior divided into a plurality of spaces individually corresponding to the plurality of ejection hole groups for different-color inks. The spaces include at least a first space corresponding to the ejection hole group for a black ink, and a second space corresponding to the ejection hole groups for yellow, magenta and cyan inks. The plurality of spaces are integrated in a single cap. When an ink-jet recording apparatus includes such a cap, a condition for proper ejection of ink is maintained in the apparatus and requires only a small system.

Abstract: A recording apparatus includes a first housing having a control unit for controlling a recording mechanism for recording onto a recording medium and a feed mechanism for feeding the recording medium, a second housing connected movably to the first housing, and housing an attaching portion for attaching the recording mechanism thereto and the feed mechanism, and an operation portion. Access to the operation portion is unnecessary when the recording apparatus is not in use and, therefore, it is covered and protected with the second housing, but is opened by the rotation of the second housing when recording. The recording apparatus is placed in a thin form convenient for transportation or storage when not in use or in a form suitable for the conveyance of the recording medium when in use. When in use, the exterior of the first housing can form a part of a conveyance route of the recording medium.

Abstract: The present invention provides a recording system including a recording head for performing recording on a sheet, a first rotary member disposed at a downstream side of the recording head and contacting an unrecorded surface of the sheet on which the recording is performed by the recording head and adapted to apply a feeding force to the sheet, and a second rotary member being provided at its peripheral surface with a plurality of teeth and contacting a recorded surface of the sheet with the tips of the teeth thereof, and cooperating with the first rotary member to feed the sheet. The plural teeth of the second rotary member are staggered with other teeth in a direction transverse to a sheet feeding direction.

Abstract: A sheet conveyor for conveying a sheet by engaging an engaging member with openings formed in a sheet and conveying the sheet by displacement of the engaging member. The conveyor includes a holding device for holding the engaging member so as to be movable between an operative position and a retracted position retracted from the operative position, a device deformable to move the engaging member provided on the holding device between the operative position and the retracted position, and a drive device for driving the holding device to displace the engaging member.

Abstract: A reader printer which is capable of employing a feed passage in common as a sheet feed passage for allowing a recording sheet of a recording system to be fed therethrough and an original feed passage for allowing an original to be fed therethrough so that it becomes possible to reduce the number of components, such as rollers and platens, which are conventionally needed for each of these passages, thereby enabling reductions in the size and price of the reader printer.

Abstract: A sheet conveying apparatus for conveying a sheet comprises a separation rotary member for separating a single sheet from a plurality of sheets and feeding the sheet, a supply rotary member for supplying the sheet toward the separation rotary member, driving means for generating a driving force to rotate the separation rotary member, intermission means for intermitting the transmission of the driving force from the driving means, operating means for shifting the supply rotary member between a supplying operation position and retracted position retracted from the supplying operation position, and driving force transmitting means for performing the transmission or interruption of the intermission means, in synchronism with the shift of the supply rotary member to the retracted position or to the supplying operation position by means of the operating means.

Abstract: A platen for a recording device includes a main body of the platen having a flat surface part opposing a recording head and a guiding part for a recording sheet. The guide part is continuous with the flat surface part and inclined so as to secure smooth advancement of the recording sheet. A continuous smooth layer of a material having a frictional coefficient smaller than that of the platen main body is integrally formed on the upper surface of the flat surface part and guiding part.

Abstract: A thermal head has one or more slits formed at a portion of a substrate and one or more heat generating resistors arranged between the slits.

Abstract: An auxiliary heating element is provided near at least one end of an array of main heating resistor elements, thereby preventing thermal diffusion near the at least one end of the array and providing uniform printing density and prolonged service life. The adjacent portion of the auxiliary heating resistor element and the main heating resistor elements may be connected in series or in parallel, thereby simplifying the feeder pattern to the heating resistor elements, hence simplifying the structure of connectors and a drive circuit concerned, providing uniform image density and realizing prolonged service life of thermal head, without raising cost.

Abstract: The invention provides a non-impact printing apparatus wherein a printing head is moved along the direction of width of a recording paper sheet while the printing head is press-contacting the recording paper sheet. The printing apparatus has a means for press-contacting the recording paper sheet with the printing head and a paper feeding means. When the printing head is moved within a predetermined range which is narrower than a printing range, paper feeding is performed. A press-contacting means is biased by a biasing means such that the center of pressure of the press-contacting means is substantially at the center of the predetermined range of the printing head.

Abstract: A process for alkylating the ortho-position of a phenol compound which comprises catalytically reacting a phenol compound containing at least one hydrogen atom at its ortho-position with an alcohol in the gaseous phase, characterized by that the catalyst containing iron oxide, silica, chromium oxide and one or more of alkali metal compound is used.

Abstract: A process for alkylating the ortho-position of a phenol compound which comprises bringing a phenol compound containing at least one hydrogen atom at its ortho-position and an alcohol into contact with a catalyst in the gaseous phase, said catalyst being selected from the group consisting ofA. a mixture of iron oxide and silica in which the atomic ratio of Fe to Si is 100 : 0.03 - 200, andB. a mixture of iron oxide, silica and chromium oxide in which the atomic ratio of Fe to Si to Cr is 100 : 0.1 - 5 : 0.1 - 5.