HP M3035 Service Manual - Page 270

Tire tracks AaBbCc AaBbCc AaBbCc AaBbCc AaBbCc This defect typically occurs when the print cartridge has far exceeded its rated life. For example, if you are printing a very large quantity of pages with very little toner coverage. 1. Perform a half self-test functional check. If the drum is damaged, replace the print cartridge. 2. Run a cleaning page. If the image defect persists, replace the fuser. (See Fuser on page 139.) 3. If the image defect persists, check the device for other sources of contamination or damage in the paper path and clean or replace parts as necessary. NOTE This type of image defect might also be a repetitive defect. See Image defect ruler on page 238. White spots on black 1. Print a few more pages to see if the problem corrects itself. 2. Make sure that the type and quality of the media that you are using meet HP specifications. (See Media specifications on page 15.) 3. Make sure that the environmental specifications for the device are being met. (See Operating environment on page 22.) 4. Replace the print cartridge. 258 Chapter 6 Troubleshooting ENWW