HP 2300d Service Manual - Page 222

Note Note Isolate a media type When jams and other problems occur frequently, it is often because the customer is using a special paper. Customers must only use print media that conforms to all Hewlett-Packard specifications, and should always test media before purchasing large quantities. Media should be tested before storage to verify quality printing results. Then, if problems arise, storage or handling conditions can isolate the most likely cause. Some types of media that might cause problems are: q preprinted forms and special letterhead q embossed paper q perforated paper q adhesive labels q envelopes q transparencies q chemically treated paper q synthetic paper q coated paper q other special media Preprinted forms and special letterhead Many preprinted forms and special letterhead papers perform well in HP LaserJet printers. However, these papers undergo processes that alter their original characteristics, and care must be taken to ensure they conform to HP specifications. All special papers should be wrapped in moisture-proof wrapping when purchased from the paper converter or printing house. Forms and letterhead must be printed with inks that conform to the following specifications: q Only use ink that is heat-resistant, and that does not melt, scorch, or release hazardous emissions when subjected to 200 degrees C (392 degrees F) for 0.1 second. q Inks must have resistance to silicon oils, and must not be affected by resin components in toner. q Inks must not be flammable. q Inks must not "offset" (transfer from the printed paper onto the printer, contaminating internal printer components). The principle cause of offset is ink that is not fully dried or that cannot withstand the printer fusing temperature. Do not use low-temperature inks (the kind used with thermography). Do not purchase more media than can be easily used in a short time (about 3 months). Media stored for long periods experiences heat and moisture extremes that can be damaging. Planning is important to prevent damage to a large supply of media. Hewlett-Packard neither warrants nor recommends the use of a particular brand of paper or print media. Media properties are subject to manufacturing changes, and Hewllett-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 its performance, process quality control by the manufacturer. 220 Troubleshooting ENWW