Abstract: A wiping unit is provided that wipes a droplet discharge head included in a droplet discharge unit and reduces the likelihood or prevents a cleaner to be sprayed to a wiping sheet from getting dispersed and adhering to peripheral units. A wiping unit included in a droplet discharge unit is provided with a charged electrode, an absorption electrode, and a static elimination brush. A cleaner sprayed by a cleaner spray head is electrically charged by the charged electrode. The charged cleaner is absorbed toward the absorption electrode, and adheres to a wiping sheet that is placed just before the absorption electrode. Accordingly, it is possible to reduce the likelihood or prevent the cleaner from getting dispersed and adhering to peripheral units.

Abstract: Apparatus and techniques are disclosed for aligning the operation of the ink jet printhead cartridges of a multiple printhead ink jet swath printer that includes a print carriage that is movable along a horizontal carriage scan axis, (b) first and second ink jet printhead cartridges supported by the movable carriage for printing onto a print media that is selectively movable along a vertical media scan axis, and (c) an optical sensor supported by the movable carriage.

Abstract: A method for reducing frequency-related power losses in a telecommunication line interface circuit comprises operating a switching converter circuit at an optimum frequency. Determination of the optimum frequency is based upon a subscriber loop length. Particularly, the subscriber loop voltage is detected at a battery feed circuit of the line interface circuit, and used to access an optimum frequency stored in an initialized database. The optimum frequency information is received in the switching converter circuit, and determines its operating frequency.