HP 1 year Post Warranty Next Business Day Advanced Exchange Service for LaserJet Pro 400x, Exchange (NBD), Offsite, Post warranty, Standard workdays - 9 hours, 1 year, Next business day response HP 1 year Post Warranty Next Business Day Advanced Exchange Service for LaserJet Pro 400x. Support type: Exchange (NBD), Place of service: Offsite, Warranty coverage: Post warranty