HP Mopier 320 Service Manual - Page 637

Table 7-22. Toner Smear (continued) Possible Cause Recommended Action 4. Fusing Assembly is defective. The Replace the Fusing Assembly. See print will smear if the Fusing "Fusing Assembly" on page 252 for Assembly is not heated sufficiently to instructions. Try changing fuser bond the toner image to the paper. modes depending on the type of media used. 5. DC Controller is defective. The DC If a new Fusing Assembly does not Controller regulates fusing roller resolve the problem, replace the DC temperature. Controller PCA. See "PCA, DC Controller" on page 261 for instructions. Table 7-23. Background Scatter Possible Cause Recommended Action Random Background Scatter 1. Paper does not meet Try a different media or paper lot (see specifications. The moisture content, HP LaserJet Printer Family Paper conductivity or surface finish may not Specifications Guide). work correctly with the electrophotographic process. 2. Inside of printer is dirty (toner may Clean inside of printer (see "Cleaning have leaked out of the toner the Mopier and Accessories" on cartridge). page 112). Install a new toner cartridge if leaking. 3. Printing on envelope seams. Move the text to an area without Printing on an envelope seam can seams. If not printing on seams, try a cause a background scatter problem. higher print density setting (see item 6, below). 4. Toner cartridge is defective. Install a new toner cartridge. 604 Chapter 7 Troubleshooting C4229-90911