HP 2100 Service Manual - Page 148

NOTE: Paper Storage Environment Paper storage and handling is as important as the paper-making process itself. Paper storage environmental conditions directly affect the feed operation. Care should be taken not to purchase more paper than can be easily used in a short time (about 3 months). Paper stored for long periods may experience heat and moisture extremes which can cause damage. Planning is important to prevent damage to a large supply of paper. Unconverted paper in sealed reams can remain stable for several months before use. Converted papers have more potential for environmental damage, especially if they are not wrapped with a moisture-proof barrier. The paper storage environment should be properly maintained to ensure optimum printer performance. The required condition is 68 to 75 F (20 to 24 C), with a relative humidity of 45% to 55%. The following guidelines should be considered when evaluating the customer's paper storage environment: • Paper should be stored at or near room temperature. • The air should not be too dry or too humid. • The best way to store an opened ream of paper is to re-wrap it tightly in its moisture- proof wrapping. If the printer environment is subject to extremes, unwrap only the amount of paper to be used during the day's operation to prevent unwanted moisture changes. 138 Chapter 6 Troubleshooting C4170-90959