HP Color LaserJet CM4730 Service Manual - Page 605

Print quality troubleshooting pages The print quality troubleshooting pages provide information on aspects of the MFP that affect print quality. 1. Scroll to and touch Administration. 2. Scroll to and touch Troubleshooting. 3. Touch PQ Troubleshooting. 4. Touch Print. The message Printing PQ Troubleshooting appears on the display until the MFP finishes printing the print quality troubleshooting information. The MFP returns to the Ready state after printing the print quality troubleshooting information. The print quality troubleshooting information includes one page for each color (black, magenta, cyan, and yellow), MFP statistics related to print quality, instructions on interpreting the information, and procedures to solve print quality problems. If following the procedures recommended by the print quality troubleshooting pages do not improve print quality, go to http://www.hp.com/support/ljcm4730mfp. Print quality troubleshooting tool The print quality troubleshooting tool helps you identify and troubleshoot print quality issues for the HP Color LaserJet CM4730 MFP. The tool includes solutions for many print quality issues, using standard images to provide a common diagnostic environment. It is designed to provide intuitive, step-by-step directions for printing troubleshooting pages that are used to isolate print quality problems and provide possible solutions. To find the print quality troubleshooting tool, go to the following quick URL: http://www.hp.com/go/ printquality/ljcm4730mfp Image defect examples Horizontal lines or streaks Defect description Horizontal lines or streaks appear on the page. ENWW Correct print quality and copy quality problems 585