| 摘要 |
PROBLEM TO BE SOLVED: To provide an image forming system configured to determine the kind of a developing cartridge with a simple configuration.SOLUTION: An image forming system including multiple kinds of drum cartridges 10 mounted on a device body 2, and multiple kinds of developing cartridges 11. By use of developing roller shaft collars 59A, 59B, 63A, 63B covering a developing roller shaft 15A of a developing roller 15, the developing cartridges 11 are regulated from being mounted on different kinds of drum cartridges 10. |
