Konica-Minolta bizhub 4050
Troubleshooting. JAM. Misfeed at tray 1 feed section
JAM code: 11-01
Sub-code: (241.xx)
Detection timing
| 241.41 | Main motor stall in tray 1. |
| 241.42 | Main motor Pick/lift motor under-speed in tray 1. |
| 241.43 | Main motor stalled on the last pick attempt in tray 1. |
| 241.44 | Motor 2 (Separator/pass through) motor stalled. |
| 241.45 | Motor 2 (Separator/pass through) motor PWM overflow error (underspeed). Motor underspeed (max PWM and motor underspeed, typical accordion jam). |
| 241.46 | Motor 2 (Separator/pass through) motor ramp (end ramp - did not reach speed, typical pack feed paper jam). |
| 241.47 | Motor 3 motor stalled. |
| 241.48 | Motor 3 motor PWM overflow error (underspeed). Motor underspeed (max PWM and motor underspeed, typical accordion jam). |
| 241.49 | Motor 3 motor ramp (end ramp - did not reach speed, typical pack feed paper jam). |
Relevant parts
• Separator/pass through motor
• Index sensor
• Pick/lift motor
Procedure
| Step | Action | Yes | No |
|---|---|---|---|
| 1 | Restart the printer. Does it fail to complete the POST sequence and display a 241.xx error? |
Replace the index sensor. | Go to step 2. |
| 2 | Check the pick tires. Are they free of wear or damage? |
Go to step 3. | Replace the pick tires. |
| 3 | Check the separator roll assembly. Is it free of wear or damage? |
Go to step 4. | Replace the separator roll assembly. |
| 4 | Check the tray guides. Are they free of wear or damage? |
Go to step 5. | Replace the tray insert. |
| 5 | • Enter the Service Mode and perform a paper passage test: Select [Service Mode] -> [State Confirmation] -> [Paper Passage Test] -> [Tray 1], and touch Start key. • Cancel the test after five pages. Does the printer successfully feed the five pages into the output bin? |
Go to step 7. | Go to step 6. |
| 6 | Observe the location of the jammed paper. Are the first page fed to the output bin, the second page jammed in the rear door, and the third page jammed in the input tray? |
Go to step 7. | Replace the trailing edge sensor. |
| 7 | Perform a tray 1 pick/lift motor gearbox service check. Does the error remain? |
Go to step 8. | The problem is solved. |
| 8 | Check the ACM assembly. Is it free of wear or damage? |
Go to step 9. | Replace the ACM assembly. |
| 9 | Check the MPF gearbox. Is it free of wear or damage? |
Go to step 10. | Replace the MPF gearbox. |
| 10 | Check the main drive gearbox Is it free of wear or damage? | Go to step 11. | Replace the main drive gearbox. |
| 11 | Does the error remain? | Contact the next level of support. | The problem is solved. |