- HP All-in-One Printer Manual

Q2431-90912 Chapter 7 Troubleshooting 321
Table 69. White spots on black
Possible cause Recommended action(s)
The media does not meet specifications
or is not stored properly.
1. Turn over the stack of media in the tray. Also try rotating the
media 180 degrees.
2. Check the media for type and quality. Replace the media,
and advise the customer to use the HP recommended
media and to store it correctly. See “Paper specifications” on
page 9
The printers operating environment
does not meet specifications.
● Make sure the printer is installed in the proper environment.
See “Environmental specifications” on page 7.
The print cartridge is defective.
● Replace the print cartridge.
Table 70. Scattered lines
Possible cause Recommended action(s)
The media does not meet specifications
or is not stored properly.
1. Turn over the stack of media in the tray. Also try rotating the
media 180 degrees.
2. Check the media for type and quality. Replace the media,
and advise the customer to use the HP recommended
media and to store it correctly. See “Paper specifications” on
page 9
The printers operating environment
does not meet specifications.
● Make sure the printer is installed in the proper environment.
See “Environmental specifications” on page 7.
Wrong toner density setting.
● Access the print-quality menu at the control panel, and adjust
the toner density setting. See “Print Quality submenu” on
page 46.
The high transfer setting is turned off.
● Access the print-quality menu at the control panel (see “Print
Quality submenu” on page 46). Select
OPTIMIZE and set HIGH
TRANSFER=ON
.
The line detail setting is turned off.
● Access the print-quality menu at the control panel (see “Print
Quality submenu” on page 46). Select
OPTIMIZE and set LINE
DETAIL=ON
.
Table 71. Blurred print
Possible cause Recommended action(s)
The media does not meet specifications
or is not stored properly.
1. Turn over the stack of media in the tray. Also try rotating the
media 180 degrees.
2. Check the media for type and quality. Replace the media,
and advise the customer to use the HP recommended
media and to store it correctly. See “Paper specifications” on
page 9
The printers operating environment
does not meet specifications.
● Make sure the printer is installed in the proper environment.
See “Environmental specifications” on page 7.
Wrong toner density setting.
● Access the print-quality menu at the control panel, and adjust
the toner density setting. See “Print Quality submenu” on
page 46.
The high transfer setting is turned off.
● Access the print-quality menu at the control panel (see “Print
Quality submenu” on page 46). Select
OPTIMIZE and set HIGH
TRANSFER=ON
.
The line detail setting is turned off.
● Access the print-quality menu at the control panel (see “Print
Quality submenu” on page 46). Select
OPTIMIZE and set LINE
DETAIL=ON
.