HP LaserJet Enterprise M4555 MFP series - Manual (Page 323)

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: www.hp.com/support/ljm4555mfp .
2. When you configure the product to print on some paper types, such as heavy paper, the product
prints more slowly so it can correctly fuse the toner to the paper. 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 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 303