Image Quality When you are working with customers, obtain a print sample before you begin troubleshooting their printer. Ask the customer to explain the quality they expect from the printer. The print sample will also help clarify the customer's explanation and expectations. Table 7-24. Image Quality Problem Action 1. Do you have a print sample? Obtain a print sample from the customer. 2. Does the problem repeat on the page? Use the Repetitive Defect Ruler in figure 7-14 on page 484. 3. Is the toner cartridge full and is it manufactured by HP? Check the toner cartridge using the check list on page 470. 4. Is the printer clean?
Perform the cleaning procedure described in “Cleaning the Printer and Accessories” on page 82. 5. Is the customer using print media that meets all HP paper specification standards? For more information about HP's paper specification standards, see “Paper Capacities and Sizes” on page 4 and the HP LaserJet Family Paper Specification Guide. 6. Is the print sample similar to those in the “Image Quality Tables” on page 471? Compare and perform the actions recommended in “Image Quality Tables” on page 471. 7. Is the problem on the drum or transfer roller? Perform the steps in “Half Self Test Functional Check” on page 485 to determine where the defect is.
If the defect is on the drum, replace the toner cartridge. If it is not on the drum, replace the transfer roller. C4085-91087 Image Quality 469