| No. | Description | No. | Description |
|---|
| 1 | Development Intake Fan (Y) | 15 | ID Chip (Y) |
| 2 | ID Chip Connector Board (Y) | 16 | Toner End Sensor (Y) |
| 3 | Toner Supply Motor (Y) | 17 | Sub Hopper Motor (Y) |
| 4 | Development Intake Fan (M) | 18 | ID Chip (M) |
| 5 | ID Chip Connector Board (M) | 19 | Toner End Sensor (M) |
| 6 | Toner Supply Motor (M) | 20 | Sub Hopper Motor (M) |
| 7 | Development Intake Fan (C) | 21 | ID Chip (C) |
| 8 | ID Chip Connector Board (C) | 22 | Toner End Sensor (C) |
| 9 | Toner Supply Motor (C) | 23 | Sub Hopper Motor (C) |
| 10 | Development Intake Fan (K) | 24 | ID Chip (K) |
| 11 | ID Chip Connector Board (K) | 25 | ITB Cleaning Unit Set Sensor |
| 12 | Toner Supply Motor (K) | 26 | Toner End Sensor (K) |
| 13 | Toner Supply Unit Front Cover Switch | 27 | Sub Hopper Motor (K) |
| 14 | Toner Supply Board (TSB) | | |