Toshiba DP1610
Troubleshooting. Image. 04 Solid copy, White banding (in feeding direction)
(4) Solid copy
| Step | Cause/Defect area | Check items | Measures |
|---|---|---|---|
| 1 | Process unit installation | Process unit securely installed? | Re-install process unit securely. |
| 2 | Process unit (main charger) |
Charger wire terminals/grid terminals (process unit) and corresponding terminals (main body) stained? |
Clean terminals. |
| 3 | Is there any disconnection in the charger wire? | Replace the process unit or charger wire. | |
| 4 | HVPS (main charger) | High-voltage output defective? | Adjust output from HVPS, or replace defective HVPS. |
| 5 | If problem persists after measures are applied, or there is no problem found in above check, follow procedure described in right column. | Replace the process unit, laser scanner unit, HVPS, or main PWA. |
(5) White banding (in feeding direction)
| Step | Cause/Defect area | Check items | Measures |
|---|---|---|---|
| 1 | Paper feed path | Does toner image touch foreign matter after separation, before entering fuser unit. | Remove the foreign matter. |
| 2 | Laser scanner unit | Foreign matter or dust on lens? | Remove the foreign matter or dust with blower. (Do not use a cloth.) |
| 3 | Is there a foreign matter blocking off laser beam in the path? | Remove the foreign matter. | |
| 4 | Transfer charger unit | Does a foreign material or stain adhere to the transfer wire? | Clean the wire, or remove the foreign matter. |
| 5 | Transfer charger wire slacked? | Replace the transfer charger unit. | |
| 6 | Transfer charger case deformed? | Replace the transfer charger unit. | |
| 7 | Process unit (Magnetic roller) |
White banding on the magnetic roller? (Is there a foreign matter between the magnetic roller and doctor blade?) | Clean the area between the magnetic roller and doctor blade with the doctor blade cleaning jig. |
| 8 | Process unit (Doctor blade) | Is the doctor-sleeve gap within the specified value? | Adjust the doctor-sleeve gap. If the problem persists, replace the doctor blade. |
| 9 | Process unit (Drum) | Any abnormalities on drum surface? | If the problem persists, replace process unit or drum. Note: Never touch drum surface. |
| 10 | If problem persists after measures are applied, or there is no problem found in above check, follow procedure described in the right column. |
Replace the process unit, laser scanner unit, or transfer charger unit. |