Kyocera TASKalfa 3551ci
Troubleshooting. Electric problems 1
1. The machine does not operate when the main power switch is turned on.
| Causes | Check procedures/corrective measures |
|---|---|
| 1. No electricity at the power outlet. | Measure the input voltage. |
| 2. The power cord is not plugged in properly. | Check the contact between the power plug and the outlet. |
| 3. Broken power cord. | Check for continuity. If none, replace the cord. |
| 4. Defective main power switch. | Check for continuity across the contacts. If none, replace the main power switch. |
| 5. Defective power source PWB. | Replace the power source PWB |
2. MP lift motor does not operate.
| Causes | Check procedures/corrective measures |
|---|---|
| 1. Defective connector cable or poor contact in the connector. | Reinsert the connector. Also check for continuity within the connector cable. If none, replace the cable. MP lift motor and relay PWB (YC3) Relay PWB (YC12) and feed PWB 1 (YC17) Feed PWB 1 (YC1) and engine PWB (YC6) |
| 2. Defective drive transmission system. | Check if the rollers and gears rotate smoothly. If not, grease the bushes and gears. Check for broken gears and replace if any. |
| 3. Defective motor. | Replace the MP lift motor. |
| 4. Defective PWB. | Replace the relay PWB, feed PWB 1 or engine PWB and check for correct operation |
3. Scanner motor does not operate.
| Causes | Check procedures/corrective measures |
|---|---|
| 1. Defective connector cable or poor contact in the connector. | Reinsert the connector. Also check for continuity within the connector cable. If none, replace the cable. Scanner motor and ISC PWB (YC5) ISC PWB (YC3) and main PWB (YC11) |
| 2. Defective drive transmission system. | Check if the rollers and gears rotate smoothly. If not, grease the bushes and gears. Check for broken gears and replace if any. |
| 3. Defective motor. | Replace the scanner motor. |
| 4. Defective PWB. | Replace the ISC PWB or main PWB and check for correct operation |
4. Registration motor does not operate (45 ppm/55 ppm model only).
| Causes | Check procedures/corrective measures |
|---|---|
| 1. Defective connector cable or poor contact in the connector. | Reinsert the connector. Also check for continuity within the connector cable. If none, replace the cable. Registration motor and feed PWB 1 (YC25) Feed PWB 1 (YC2) and engine PWB (YC5) |
| 2. Defective drive transmission system. | Check if the rollers and gears rotate smoothly. If not, grease the bushes and gears. Check for broken gears and replace if any. |
| 3. Defective motor. | Replace the registration motor. |
| 4. Defective PWB. | Replace the feed PWB 1 or engine PWB and check for correct operation |