| Priority | Cause | Explanation | |----------|-------|-------------| | 1 | | Tiny paper pieces or a loose staple lodged near the alignment fence guide rails. | | 2 | Alignment fence mechanical binding | Fence skewed, rail dirty/warped, or spring detached. | | 3 | Home position sensor failure | Sensor dirty, disconnected, or failed (e.g., photo-interrupter stuck ON/OFF). | | 4 | Alignment fence motor failure | Motor not turning (open winding, broken gear, harness fault). | | 5 | Motor drive circuit / harness | Broken wire between finisher controller board and motor/sensor. | | 6 | Finisher main board failure | Rare; typically last resort. |
Do not skip fuser overhaul at the recommended PM counter (usually 300k–600k prints depending on model). Replace the thermistor, lamp, and pressure roller as a set. sc569-00 ricoh
| Priority | Cause | Explanation | |----------|-------|-------------| | 1 | | Tiny paper pieces or a loose staple lodged near the alignment fence guide rails. | | 2 | Alignment fence mechanical binding | Fence skewed, rail dirty/warped, or spring detached. | | 3 | Home position sensor failure | Sensor dirty, disconnected, or failed (e.g., photo-interrupter stuck ON/OFF). | | 4 | Alignment fence motor failure | Motor not turning (open winding, broken gear, harness fault). | | 5 | Motor drive circuit / harness | Broken wire between finisher controller board and motor/sensor. | | 6 | Finisher main board failure | Rare; typically last resort. |
Do not skip fuser overhaul at the recommended PM counter (usually 300k–600k prints depending on model). Replace the thermistor, lamp, and pressure roller as a set.
Prevention is cheaper than repair. Follow these best practices:
ever mejia (verified owner) –
Un sonido unico
jontatan1228 (verified owner) –
Espectacular