HP d640 HP D640 High-Volume Printer - User Manual (Printer and Accessories), C - Page 239
Packaging, Media Selection Specifications and Guidelines, Cast Surfaces, Paper Ream Label
View all HP d640 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 239 highlights
Using Paper Media Selection Specifications and Guidelines Cast Surfaces When a very smooth surface is required, a clay and water solution is applied to the paper, and is then "cast" under high temperatures. Cast surface paper is mainly used for offset color presses and making original typeset master sheets used in publication printing. This type of paper is not recommended for D640 printers because clay is very abrasive to components in the paper path. Packaging Packaging is an important step in the paper-making process. Much of the paper used for computing printing applications is packaged in reams: wrapped bundles containing 500 sheets. Because paper is hygroscopic, or capable of absorbing or losing moisture from the air, it should be protected by moisture-proof polylaminated wrapping and moisture barriers. A ream of finished paper usually contains about 4% moisture. The paper ream remains stable if properly stored and opened only when ready to be used. Paper Ream Label A ream label is placed on the outside of the paper wrapping. The ream label usually indicates paper: basis weight, size, number of sheets, grain direction and grade. The printing surface of the paper may be indicated by an arrow on the ream label. Paper should be loaded into the printer so that surface indicated by the arrow will be the printing surface. The printing surface may be up or down, depending on the printer model and the paper feeding source. Figure D-1 Ream Label Media Selection Specifications and Guidelines Hewlett-Packard neither warrants nor recommends the use of a particular print media. Media properties are subject to change by manufacturers and Hewlett-Packard has no control over such changes. The customer assumes all responsibility for the quality and performance of media. Although testing media helps to characterize their performance, long-term satisfaction requires process quality control by the manufacturer and proper handling until use. Using Paper D-3