HP Color LaserJet 9500 Service Manual - Page 39

Note Note CAUTION Note Card stock construction When selecting card stock, consider the quality of each component: z Smoothness: 135- to 220-g/m2 (36- to 58-lb bond) card stock should have a smoothness rating of 100 to 180 Sheffield. z Curl: Card stock should lie flat with less than 5 mm (0.2 inch) of curl. z Condition: Make sure that the card stock is not wrinkled, nicked, or otherwise damaged. z Size: See "Supported media and capacity for input and output" on page 32. z Weight: Card stock of 200 g/m2 (53 lb) or less can be loaded in any tray. Card stock heavier than 200 g/m2 (53 lb) must be printed from tray 1. When printing on card stock, make sure to set the CARDSTOCK type at the control panel when you load the tray, and in the printer driver when you print your print job. Transparency specifications To avoid damaging the printer, use only transparencies that are recommended for use in color laser printers. z Construction: Prior to printing, transparencies should lie flat with less than 10 mm (0.39 inch) curl. z Condition: Transparencies should not be wrinkled, nicked, or otherwise damaged. z Temperature: Transparencies should be stable at 190° C (374° F), which is the printer fusing temperature. z Size: 5 mm thick (0.005 inch) If problems occur while printing on transparencies, use tray 1. Send transparencies straight through the printer, entering at tray 1 and exiting from the face-up bin. Transparencies used in the printer must be able to withstand 190° C (374° F), the printer fusing temperature. 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: z Only use ink that is heat-resistant, and that will not melt, scorch, or release hazardous emissions when subjected to 200° C (392° F) for 0.1 second. z Inks must have resistance to silicon oils, and must not be affected by resin components in toner. z Inks must not be flammable. z 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 forms or letterhead that was produced by using low-temperature inks (the kind used with thermography). ENWW Chapter 1 Product information 37