HP 5000n manual Image Quality, Check the Toner Cartridge, 48Troubleshooting

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.

Table 7-8. Image Quality Checks

Image Quality Checks Action

Does the problem repeat on the page?

Is the Toner Cartridge full and is it manufactured by HP?

Is the customer using print media that meets all HP paper specification standards?

Is the print sample similar to those in the Print Quality Tables on page 7-48?

Is the problem on the Toner Cartridge drum or the Transfer Roller?

Use the Repetitive Defect Ruler on page 7-73.

Check the Toner Cartridge using the check list on page 7-48.

For more information about HP’s paper specification standards, see Chapter 1 of this manual and the HP LaserJet Family Paper Specification Guide.

Compare and perform the actions recommended in the Print Quality Tables.

Perform the Half Self-Test Functional Check (page 7-74) to determine where the defect is.

If a dark and distinct toner image is present on the drum’s surface, assume that the first four functions of the electrophotographic process are functioning (cleaning, conditioning, writing, and developing - see Chapter 5), and troubleshoot the failure as a transfer or fusing problem.

Check the Toner Cartridge

Image formation defects are often the result of problems with the Toner Cartridge. If there is any doubt, always replace the Toner Cartridge before troubleshooting image defects.

7-48Troubleshooting EN