HP Officejet Pro X551 Printer series - Manual (Page 181)

The product prints slowly
If the product prints, but it seems slow, try the following solutions.
1. Make sure the computer meets the minimum specifications for this product. For a list of
specifications, go to this Web site: http://www.hp.com/go/support .
2. If the paper type setting is not correct for the type of paper you are using, change the setting to the
correct paper type.
3. If your computer or the product is connected to a wireless network, low signal quality or
interference might be delaying print jobs.
ENWW The product does not print or it prints slowly 167