Toshiba e-Studio 165
Troubleshooting. Image. 09 White banding (in the feeding direction), White banding (at right angle with the feeding direction)
9. White banding (in the feeding direction)
| Defective area | Step | Check items | Prescription |
|---|---|---|---|
| Laser optical unit | 1 | Is there a foreign matter or stain on the slit glass? | Remove the foreign matter or stain. |
| Main charger grid | 2 | Is there a foreign matter or dew on the charger grid? | Remove the foreign matter. |
| Transfer charger wire | 3 | Is there any foreign matter or stain on the transfer charger wire? | Clean the transfer charger wire. |
| Developer unit | 4 | Is the developer material transported properly? | Remove the foreign matter if there is any. |
| 5 | Is there a foreign matter or dew on the drum seal? | Remove the foreign matter or dew. | |
| 6 | Is the upper drum seal of the developer unit in contact with the drum? | Correct the position of the drum seal or replace it. | |
| Drum | 7 | Is there a foreign matter on the drum surface? | Replace the drum. |
| Transport path | 8 | Does the toner image contact with any foreign matter before the paper enters the fusing section after the separation? | Remove the foreign matter. |
| Discharge LED | 9 | Is any of the discharge LEDS off? | Replace the discharge LED. |
| Scanner | 10 | Are the original glass (especially the position of shading correction plate) and CIS unit dirty? | Clean them. |
| Cleaner | 11 | Is there any foreign matter, which contacts the drum on the cleaner stay? | Remove the foreign matter. |
10.White banding (at right angle with the feeding direction)
| Defective area | Step | Check items | Prescription |
|---|---|---|---|
| Main charger | 1 | Is there a foreign matter on the charger? | Remove the foreign matter. |
| 2 | Is the connector in proper contact with the terminal? | Clean or adjust the terminal. | |
| Drum | 3 | Is there any abnormality on the drum surface? | Replace the drum. |
| Discharge LED | 4 | Does the discharge LED light normally? | Replace the discharge LED or check the harness and the circuit. |
| Developer unit | 5 | Is the developer sleeve rotating normally? Is there any abnormality on the sleeve surface? |
Check the drive system of the developer unit, or clean the sleeve surface. |
| Drive system | 6 | Are the drum and scanner jittering? | Check each drive system. |
| High-voltage transformer (Main charger / Developer bias / Transfer charger) | 7 | Is the high-voltage transformer output defective? | Adjust the output, or replace the transformer. |
| Transfer charger | 8 | Is any foreign matter such as paper shred sticking to the transfer charger wire? | Remove the foreign matter from the wire. |
| Feed system | 9 | Is the aligning amount proper? | Adjust the aligning amount. |