| | MP 501SPF/601SPF | IM 550F/600F/600SRF (This machine) |
|---|
| DF | ARDF | SPDF |
| Print speed | MF 501SPF: 50ppm | IM 550F: 55ppm |
| MF 601SPF: 60ppm | IM 600F/600SRF: 60ppm |
| Toner | 25k toner | IM 550F: 25.5k toner |
| IM 600F/600SRF: 40k toner |
| Finisher | - | IM 600SRF: Inner finisher |
| Fusing | Heater | High efficient heater (to start up the machine faster) |
| Operation panel | SOP-G2 | SOP-G2.5 |
| Web help support | Online help | Online help |
| Offline help (Help for Image Quality & Paper Feeding) |
| Video explaining how to replace supplies | No | Yes (when the machine detects the end, it appears.) |