HP Color LaserJet CM4730 Service Manual - Page 591

Solving repeated jams Situation General repeated jam problems Repeated jams in the ADF Solution 1. Make sure that the media is loaded correctly in the trays and that all width guides are set correctly. 2. Make sure that the tray is set for the size of media that is installed and that the tray is not overloaded. 3. Try turning over the stack of media in the tray. If you are using prepunched or letterhead paper, try printing from tray 1. 4. Do not use media that has been printed on previously or torn, worn, or irregular media. See Media specifications on page 13. 5. Check the media specifications. (See Media specifications on page 13.) If media is outside of the recommended specifications, problems can occur. 6. The MFP might be dirty. Clean the MFP. 7. Check that all damaged or jammed media is removed from MFP. 1. The ADF might be dirty. Clean the ADF. 2. Make sure that the media is loaded squarely and that the media-width guides are adjusted to the sides of the media stack. 3. Make sure that no more than 50 sheets of 75 g/m2 (20 lb) bond paper are loaded in the ADF. 4. Make sure that the paper is within the range of supported weight for the ADF: 60-120 g/m2 (16-32 lb). 5. If the original document that is being copied has been folded or stapled, flatten it as much as you can and smooth any wrinkles. Make sure the pages are not stuck together where the staple was. 6. Media that has been pre-punched or perforated in any way might be difficult to feed through the ADF. If the leading edge of the document is excessively worn or frayed, try rotating the document 180 degrees before copying. 7. Make sure that the media is being stored correctly. If the media is too dry, the sheets might stick together. See Media specifications on page 13. ENWW Paper path troubleshooting 571