HP 1320 Service Manual - Page 158

Paper-path troubleshooting CAUTION Use the following table to solve problems related to moving paper or documents through the product. Failure to solve paper-feed problems can result in damage to the printer. Damage resulting from high jam-rates from any of the causes shown in this section can void the printer warranty. Solving print paper-feed problems Table 7-2. Solving print paper-feed problems Pages are coming out curled or wrinkled. Cause Paper curl is inherent to the laser printing processes, and occurs when media is subjected to heat. Curl tends to relax as the paper cools while resting on a flat surface. Media is curled or wrinkled when using the top output bin. Paper is not stored properly. The media is too long for the printer output bin. The fuser temperature is too high. Solution Make sure that the media meets specifications detailed in the HP LaserJet Printer Family Media Guide. Open the straight-through output door on the back of the printer to change the media path. Reset the fuser mode to the default. Whenever possible, store paper in its sealed ream at room temperature. Use the long media extension. Select Type is: in the Paper/Quality tab of the printer driver. Make sure that it is set for the appropriate media. Print is misaligned on the page (skewed pages). Cause Solution The main input tray is overfilled. Remove some of the media. The media guides are not set correctly, are broken, or are missing. Make sure that you center the media with the side media guides. Verify that the guides are not adjusted too tightly or too loosely against the media. Check for broken or missing guides and replace them as needed. The media's weight or surface finish does not meet HP's specifications. Make sure that the media meets specifications detailed in the HP LaserJet Printer Family Media Guide. 146 Chapter 7 Troubleshooting ENWW