Input Check
| No. | Part Name | SP Name | SP No. | Reading | |
|---|---|---|---|---|---|
| 0 | 1 | ||||
| 1 | Top cover set sensor | Feed Cover Sensor | 6-011-015 | Close | Open | 
| 2 | Original set sensor  | Original Detection | 6-011-009 | Not set | Set | 
| 4 | ADF feed sensor | DF Feed Sensor | 6-011-010 | Paper detected | Paper not detected | 
| 5 | ADF registration sensor | Registration Sensor | 6-011-013 | Paper detected | Paper not detected  | 
| 6 | Double-feed sensor | Page Keeper Sensor | 6-011-024 | Double feed not detected | Double feed detected | 
Output check
| No. | Part Name | SP Name | SP No. | Remark | 
|---|---|---|---|---|
| 3 | ADF feed clutch | Feed Clutch | 6-012-014 | |
| 7 | CIS unit: scanner lamp | Scanner Lamp: Color | 4-723-001 | |
| 9 | ADF drive motor | Motor Forward | 6-012-003 | |
| Motor Reverse | 6-012-004 |