Used Item Carriage Belt With Pulley HP Designjet 500/800 A1, Instruction CD Included Compatible Models: Designjet 500 A1 Model Designjet 510 A1 Model Designjet 500ps A1 Model Designjet 500plus A1 Model Designjet 800 A1 Model Designjet 800ps A1 Model Designjet 800plus A1 Model I bought this new, but after replacing it, there was an error with the printhead, so I decided to dispose of the printer. This is a belt that was just installed and then removed. It's practically new. ● Japanese replacement instruction CD with easy-to-understand photos included. I will also include the printed paper version. There are notes and stains on the paper. 16 pages total. Instant purchase available.