HP LaserJet Pro MFP M25-M27 User Guide - Page 95

Visually inspect the toner cartridge and imaging drum, Check paper and the printing environment

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Visually inspect the toner cartridge and imaging drum Follow these steps to inspect each toner cartridge and imaging drum. 1. Remove the toner cartridge and imaging drum from the printer. 2. Check the memory chip for damage. 3. Examine the surface of the green imaging drum. CAUTION: Do not touch the imaging drum. Fingerprints on the imaging drum can cause print-quality problems. 4. If you see any scratches, fingerprints, or other damage on the imaging drum, replace the toner cartridge and imaging drum. 5. Reinstall the toner cartridge and imaging drum, and print a few pages to see if the problem has resolved. Check paper and the printing environment Use paper that meets HP specifications Use different paper if you are having any of the following problems: ● The printing is too light or seems faded in areas. ● Specks of toner are on the printed pages. ● Toner is smearing on the printed pages. ● Printed characters seem misformed. ● Printed pages are curled. Always use a paper type and weight that this product supports. In addition, follow these guidelines when selecting paper: ● Use paper that is of good quality and free of cuts, nicks, tears, spots, loose particles, dust, wrinkles, voids, staples, and curled or bent edges. ● Use paper that has not been previously printed on. ● Use paper that is designed for use in laser printers. Do not use paper that is designed only for use in inkjet printers. ● Use paper that is not too rough. Using smoother paper generally results in better print quality. Check the printer environment Verify that the product is operating within the environmental specifications listed in the product Warranty and Legal Guide. Check the EconoMode settings HP does not recommend the full-time use of EconoMode. If EconoMode is used full-time, the toner supply might outlast the mechanical parts in the toner cartridge. If print quality begins to degrade and is no longer acceptable, consider replacing the toner cartridge. ENWW Improve print quality 87

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Visually inspect the toner cartridge and imaging drum
Follow these steps to inspect each toner cartridge and imaging drum.
1.
Remove the toner cartridge and imaging drum from the printer.
2.
Check the memory chip for damage.
3.
Examine the surface of the green imaging drum.
CAUTION:
Do not touch the imaging drum. Fingerprints on the imaging drum can cause print-quality
problems.
4.
If you see any scratches, fingerprints, or other damage on the imaging drum, replace the toner cartridge
and imaging drum.
5.
Reinstall the toner cartridge and imaging drum, and print a few pages to see if the problem has resolved.
Check paper and the printing environment
Use paper that meets HP specifications
Use different paper if you are having any of the following problems:
●
The printing is too light or seems faded in areas.
●
Specks of toner are on the printed pages.
●
Toner is smearing on the printed pages.
●
Printed characters seem misformed.
●
Printed pages are curled.
Always use a paper type and weight that this product supports. In addition, follow these guidelines when
selecting paper:
●
Use paper that is of good quality and free of cuts, nicks, tears, spots, loose particles, dust, wrinkles, voids,
staples, and curled or bent edges.
●
Use paper that has not been previously printed on.
●
Use paper that is designed for use in laser printers. Do not use paper that is designed only for use in inkjet
printers.
●
Use paper that is not too rough. Using smoother paper generally results in better print quality.
Check the printer environment
Verify that the product is operating within the environmental specifications listed in the product Warranty and
Legal Guide.
Check the EconoMode settings
HP does not recommend the full-time use of EconoMode. If EconoMode is used full-time, the toner supply might
outlast the mechanical parts in the toner cartridge. If print quality begins to degrade and is no longer acceptable,
consider replacing the toner cartridge.
ENWW
Improve print quality
87