This tray up shaft gear is compatible with models 205L, 206L, 255, 256, 257, 305, 306, 307, 355, 356, 357, 455, 456, 457, and 507.The part number is 6LJ11610000.This component is designed to restore machine function by replacing worn or damaged gears in the paper tray lifting mechanism.It undergoes testing to ensure proper fit and within the specified copier models.Installation instructions are available upon request.This item is a compatible replacement part and is not an manufacturer product.