HP LaserJet Pro 400 color Printer M451 series - Manual (Page 219)

Environmental product stewardship program
Protecting the environment
Hewlett-Packard Company is committed to providing quality products in an environmentally sound
manner. This product has been designed with several attributes to minimize impacts on our
environment.
Ozone production
This product generates no appreciable ozone gas (O
3
).
Power consumption
Power usage drops significantly while in Ready or Sleep mode, which saves natural resources and
saves money without affecting the high performance of this product. Hewlett-Packard printing and
imaging equipment marked with the ENERGY STAR
® logo is qualified to the U.S. Environmental
Protection Agency's ENERGY STAR specifications for imaging equipment. The following mark will
appear on ENERGY STAR qualified imaging products:
Additional ENERGY STAR qualified imaging product model information is listed at:
www.hp.com/go/energystar
Toner consumption
EconoMode uses less toner, which might extend the life of the print cartridge. HP does not
recommend the full-time use of EconoMode. If EconoMode is used full-time, the toner supply might
outlast the mechanical parts in the print cartridge. If print quality begins to degrade and is no longer
acceptable, consider replacing the print cartridge.
Paper use
This product’s manual/automatic duplex feature (two-sided printing) and N-up printing (multiple pages
printed on one page) capability can reduce paper usage and the resulting demands on natural
resources.
Plastics
Plastic parts over 25 grams are marked according to international standards that enhance the ability
to identify plastics for recycling purposes at the end of the product’s life.
ENWW Environmental product stewardship program 201