LowCost Servo Design
As a raster output device the PaintJet printer differs from its plotter predecessors In a number of ways One unusual feature is the optical encoder on the carnage axis. This linear, singlechannel encoder provides carriage position data that is used both to control the Firing of drops from the Inkjet print cartridges and as feedback for the servo controlling the carriage motion. Its design meets objectives o high accuracy and low cost, but introduced problems for servo design and development The...
Capillary Forces in a Foam Matrix
Capillary force is classically demonstrated by placing a thin glass tube into a pond of water and observing the water level rise inside the tube This phenomenon occurs because the water molecules are attracted lo the glass lube wall more than they are attracted to other water molecules As the water wets the glass and spreads up Ihe wall, it pulls the fluid up. The height reached by the column is retated to the surface tension of the fluid a measure of the water molecule's attraction lo itself ,...
PaintJet Printer Features
The PaintJet printer offers seven colors at 180-dots-per-inch dpi resolution cyan, yellow, magenta, red, green, blue, and black. At 90 pixels per inch the user can select from a palette of 330 colors Fig. 2 . Throughput on color graphics depends on the number of swaths made by the carriage. On a full page of graphics the carriage makes about 200 swaths, which takes four minutes. The PaintJet printer has a transparency mode in which the carriage doublepasses the image so that each dot position...
Orifice Plate Properties
The orifice plate controls both drop volume and direction, This plate contains 30 precisely placed holes less than 50 fun in diameter. The dimensional tolerances required by this part necessitated advances in plating technology. In addition, new measurement techniques were developed to ensure diameter accuracy. The orifice plate, composed of gold-plated nickel, is manufactured by electroforming. This process is illustrated in Fig, 5. A sheet of stainless steel is coated with a thin,...
Long Beach Youth Soccer 1988
1. . Ambras, et al, MicroScope An Integra Let Program Analysis Toolset. Hewlett-Packard Journal, this issue, pp. 71-B2. 2. B. Curry, An Expert System lor Organic Structure Determination,' Prut 'ridings of the ACS Symposium Series 306. KJHfi. 3. D, FMckinger, C, Pollard, and T, Wasow, Structure-Sharing in Lexical Representation, Proceedings of the 23rd Annua Meeting of the Association for Computational ,ingu is ties, Chicago, Iflflii. 4. M. Minsky, A Framework For Representing Knowledge, in...