Image-formation troubleshooting When working with customers, obtain a print sample before troubleshooting the MFP. Also, ask the customer to describe the quality expected from the MFP. The print sample helps clarify the customer’s description of the problem. Often an image-formation problem can be linked to media that is outside the specifications that Hewlett-Packard has established for optimum MFP performance. See “Measurement and adjustment” on page 232 for help with persistent image-formation problems. Table 30. Image quality checks 228 Chapter 7 Troubleshooting C8523-90921 Image quality checks Action Is the image defect on printed pages?
See image formation troubleshooting in the HP LaserJet 9000 service manual. Does the problem repeat on the page? See “Measurement and adjustment” on page 232. Is the customer using print media that meets all HP specifications? See “Measurement and adjustment” on page 232. Is the print sample similar to those in the image defect tables? See “Image defects” on page 229. Compare the sample to the tables and perform the recommended actions. Does the media meet HP standards? See “Measurement and adjustment” on page 232.