HP LaserJet Enterprise 600 Service Manual - Page 409

Table 3-36 Image defect examples (continued) Problem Image example Solution Wrinkles or creases 1. Print a few more pages to see if the problem corrects itself. 2. Make sure that the environmental specifications for the product are being met. 3. Turn over the paper in the tray. Also, try rotating the paper 180°. 4. Make sure that paper is loaded correctly and all adjustments have been made. 5. Make sure that the type and quality of the paper you are using meet HP specifications. 6. Try using another input tray. 7. If envelopes are creasing, try storing envelopes so that they lie flat. 8. Open the following menus: ◦ Administration ◦ General Settings ◦ Print Quality ◦ Adjust Paper Types ● Scroll to the desired paper type, and then press the OK button. ◦ Print Mode Vertical white lines ● Scroll to the print mode, and then press the OK button. 1. Print a few more pages to see if the problem corrects itself. 2. Make sure that the type and quality of the paper you are using meet HP specifications. 3. Replace the print cartridge. 4. If the error persist, the fuser sleeve might be scratched. Replace the fuser. 5. If the error persist, the mirror in the laser scanner might be contaminated. Replace the laser/scanner. 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. Replace the print cartridge. 2. Reduce the number of pages that you print with very low toner coverage. ENWW Solve image-quality problems 385