Part NO.: JC96-08455A JC96-08244A Type: Developer Unit Kit Compatibility: M433, M436, M437, M439, K2200, E42523, E42625 Includes Developer Material Heat Resistance: 105℃ Designed for Easy Installation This developer unit kit is compatible with M433, M436, M437, M439, K2200, E42523, and E42625 printers.The kit contains a developer unit with Developer Material pre-installed.It is engineered to restore printer functionality when replacing a worn or depleted developer unit.The unit is built to meet the thermal requirements of supported models, with heat resistance up to 105℃.Installation follows the same procedure as the developer unit for these models.