Abstract: A mount is for attaching an accessory to a fan including a downtube. The mount includes a receiver adapted for connecting to the downtube. A retainer is adapted to receive the accessory. The retainer is adapted to support and rotate about the receiver so as to position the accessory in a desired orientation. Related methods of attaching an accessory to a fan are also disclosed.

Abstract: An ink-jet printer includes a cartridge having a presser foot thereon for adjusting the gap distance between the ink-ejecting nozzles of a cartridge carried by the carrier and the surface of a sheet of paper which receives the ejected ink. The presser foot is spring biased and slidably mounted on the carrier for movement in a direction generally normal to the plane of the paper. Cartridges are provided with surface features which vary according to the optimum nozzle-to-paper gap distance for best print quality. When a cartridge is mounted on the carrier, the surface feature on the cartridge moves the presser foot toward the paper feed path to automatically adjust the nozzle-to-paper gap distance to the optimum distance for the mounted cartridge. The surface features on the cartridges may be recesses of varying depths or projections of varying heights.

Abstract: A serial drop-on-demand ink jet printer having an ink cartridge mounted for reciprocation on a carrier which traverses paper advancing through the printer. The cartridge includes a nozzle array for the ejection of ink droplets onto the paper, and the carrier includes a tab upstream from the nozzle array, in the direction of paper travel, which touches the top surface of the paper and sets the printhead-to-paper gap. The paper is pushed against the tab and maintains a minimum gap to prevent paper from coming into contact with the nozzle array. The paper is urged against the tab into the proper position relative to the nozzle array by a deflectable guide which acts on the back surface of the paper.