HP Officejet H470wf Mobile Printer - Manual (Page 87)

• Use the appropriate print cartridge for the project. For best results, use the HP
black print cartridge to print text documents and use the HP photo or gray photo
print cartridges to print color or black and white photos.
• Make sure print cartridges have not been tampered with. Refilling processes and
the use of incompatible inks can disrupt the intricate printing system and result in
reduced print quality and damage to the device or print cartridge. HP does not
guarantee or support refilled print cartridges. For ordering information, see
HP
supplies and accessories .
Check the paper quality
The paper might be too moist or too rough. Make sure the media meets HP
specifications, and try to print again. For more information, see
Select print media .
Check the type of media loaded in the device
•
Make sure the tray supports the type of media you have loaded. For more
information, see
Understand specifications for supported media .
• Make sure you have selected the tray in the print driver that contains the media
that you want to use.
Check the rollers in the device
The rollers in the device might be dirty, causing lines or smudges to appear on your
printout. Turn off the device, remove the battery, disconnect the power cord, clean the
output rollers in the device with water on a slightly dampened lint-free cloth, and then
try to print again.
Check the device location and length of USB cable
High electromagnetic fields (such as those generated by USB cables) can sometimes
cause slight distortions to printouts. Move the device away from the source of the
electromagnetic fields. Also, it is recommended that you use a USB cable that is less
than 3 meters (9.8 feet) long to minimize the effects of these electromagnetic fields.
Check the wireless connection
Printing larger files using a Bluetooth wireless connection can sometimes cause the
print job to fail. Try printing a smaller file. For more information, see
Problems setting
up 802.11 or Bluetooth wireless communication .
Meaningless characters print
If an interruption occurs to a job that is printing, the device might not recognize the rest
of the job.
Poor print quality and unexpected printouts 83