Abstract: A liquid ejecting apparatus for forming a multicolored image on a recording medium includes: a printing head for ejecting a plurality of colors; a head driving section that performs a main scanning for moving the printing head in a main scanning direction; a transporting section that transports the recording medium in a sub-scanning direction crossing the main scanning direction; and a dot control section that controls the head driving section and the transporting section so as to form an image on the recording medium by ejecting the liquids on the recording medium from the nozzle while repeatedly performing the main scanning for moving the printing head in the main scanning direction and a sub-scanning for transporting the recording medium in the sub-scanning direction.

Abstract: A method of reducing uneven use of the total number of printing elements on a print head in a printer, when selectively using the printing elements to make different size color image prints on respective similar size receiver mediums, comprises: selectively using the total number of printing elements to make color image prints substantially the same size as the receiver mediums; and selectively using a particular number of printing elements less than the total number of printing elements to make similar size color image prints smaller than the receiver mediums, but alternating which ones of the total number of printing elements can be selectively used to make each print so that the placement of each print on a receiver medium is alternated, whereby, since those printing elements that can be selectively used to make each print smaller than a receiver medium are alternated, uneven use of the printing elements is reduced.

Abstract: A hydraulic system, suitably an ink supply system for an ink jet printer, wherein a first pump conveys ink under pressure from a reservoir to a work head and a gear pump returns unused liquid from a collector at the work head to the reservoir. A bleed line connects an outlet from the first pump to an inlet to the gear pump. Accordingly, there is a flow of liquid via the bleed line such that the gear pump applies sufficient suction to the collector to draw air or a mixture of air and unused liquid therefrom. The flow is also sufficient to ensure adequate lubrication of the gear pump. The first pump may also be a gear pump, in which case the two pumps are formed as a double-ended pump.

Abstract: A printer system is associated with a taximeter for calculating the taxi fare, a seat switch for detecting a passenger who occupies the taxi, and a timepiece. A printer driver functions to drive the printer to record a drive condition of a taxi and time information each time when the drive condition is changed, for example, from "for hire" wherein the taxi is not occupied by the passenger and no fare is computed to "occupied" wherein the taxi is occupied by the passenger and the taxi fare is computed through the use of a predetermined tariff.

Abstract: Tachygraph recording discs carrying traces disposed in concentric strip-like tracks are analyzed in a device comprising a radial row of sensor cells under which the disc is rotated to provide point-by-point scanning of radial lines at a preselectable frequency given by clock pulses, the speed of rotation of the disc being controlled so that the scanning of each line corresponds to a given unit e.g. 1 minute of the disc time scale. Traces having different radial widths and locations, and which may possibly overlap, are detected as digital pulses which can be discriminated by a logic circuit and separately added and supplied to a recording and/or display device.