HP 5M manual Improving Print Quality, Print Quality Checklist, Vertical Fade, Dropouts

Improving Print Quality

General print quality problems can be solved by following the checklist below. Following the checklist are specific samples of common print quality problems. If the listed solutions do not work, see the “HP Support” pages at the front of this manual for additional sources of assistance.

Print Quality Checklist

•Redistribute the toner in the toner cartridge (see Chapter 8).

•Clean the inside of the printer (see Chapter 8).

•Adjust the print density (see Chapter 6).

•Check the paper type and quality (see Appendix A).

•Adjust resolution for the type of document you are printing (see Chapter 6).

•Replace the toner cartridge, then check print quality again.

•Check to make sure EconoMode is off (see “EconoMode Printing” in Chapter 6).

Vertical Fade

If a vertical white streak or faded area appears on the page:

•The toner supply is low. See “Extending Toner Cartridge Life” in

Chapter 8. If this does not improve the print quality, replace the toner cartridge.

•The print density adjustment is too light. Adjust the print density from the control panel (1 is light; 5 is dark). (See “Adjusting Print Density” in Chapter 6.)

Dropouts

If faded-out areas, generally rounded, occur randomly on the page:

• The moisture content of the paper is uneven, or the paper has moist spots on its surface. Try paper from a different source.

•The paper lot is bad. areas to reject toner.

The manufacturing processes can cause some Try a different kind or brand of paper.

•The transfer roller is dirty. Replace the transfer roller (see “User-Replaceable Parts” in Chapter 8).

7-16 Solving Printer Problems

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