Save paper by using the manual duplex printing option. Automatic duplex printing is available
with the HP LaserJet Pro 400 color M451dn and HP LaserJet Pro 400 color M451dw models.
Print multiple pages per sheet
Save paper by printing two or more pages of a document side-by-side on one sheet of paper.
Access this feature through the printer driver.
Reduce waste by using recycled paper.
Recycle print cartridges by using the HP Planet Partners return process.
Instant on Fusing technology and sleep mode enable this product to quickly go into reduced
power states when not printing, thus saving energy.