HP Photosmart Premium Fax C309 - Manual (Page 129)

◦ Clean the printhead, and then print this diagnostic page again.
◦ If cleaning the printhead does not solve this print quality issue, replace the cartridge corresponding
to the streaked bar.
NOTE: If replacing the cartridge does not solve this print quality issue, contact HP support for
service.
• If any of the color bars show regular white streaks, align the printer. If the issue persists, clean the
printhead, and then print this diagnostic page again.
NOTE: If cleaning the printhead does not solve this print quality issue, contact HP support for
service.
3. Look at the large text above the alignment pattern. The type should be sharp and clear.
Sample text area - expected result
• If the type is jagged, align the printer, and then print this diagnostic page again.
Sample text area - jagged text
• If the text is uneven, streaked, or smeared, clean the printhead, and then print this diagnostic page again.
Sample text area - uneven ink distribution
Sample text area - streaks or smears
4. Look at the alignment pattern above the color bars. The lines should be straight and sharp.
Alignment pattern - expected result
• If the lines are jagged, align the printer, and then print this diagnostic page again.
Alignment pattern - jagged lines
Print quality troubleshooting 127
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