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Eng
Konica-Minolta bizhub C3351
Troubleshooting. Image Quality Problem. Scanner system 2
Scanner system: fog
Troubleshooting procedure
Step |
Section |
Check item |
Result |
Action |
1 |
Original |
Original is damaged or dirty. |
YES |
Change original. |
2 |
Basic screen Density |
The problem is eliminated when the image is produced in the manual exposure setting. |
NO |
Try another exposure level in manual. |
1-Side |
3 |
ADF |
Original pad is dirty. |
YES |
Clean. |
4 |
ADF does not lie flat. |
YES |
Replace ADF if it is deformed or hinges are broken. |
5 |
Original glass |
Original glass is dirty. |
YES |
Wipe the surface clean with a soft cloth. |
6 |
|
The problem has been eliminated through the checks of steps up to 5. |
NO |
Replace the scanner unit. |
Replace MFPB. |
2-Sided |
7 |
When ADF is being used: 2nd side |
CIS reading section is dirty. |
YES |
Clean. |
8 |
|
The problem has been eliminated through the checks of steps up to 7. |
NO |
Replace the ADF. |
Scanner system: blurred image, blotchy image
Troubleshooting procedure
Step |
Section |
Check item |
Result |
Action |
1 |
Original |
Original does not lie flat. |
YES |
Change original. |
1-Side |
2 |
ADF |
ADF does not lie flat. |
YES |
Replace ADF if it is deformed or hinges are broken. |
3 |
Original glass |
Original glass tilts. |
YES |
Position original glass correctly. Check original loading position. |
4 |
|
The problem has been eliminated through the checks of steps up to 3. |
NO |
Replace the scanner unit. |
2-Sided |
5 |
When ADF is being used: 2nd side |
CIS module is tilted. |
YES |
Corrected to the correct position. |
NO |
Replace the ADF. |
Scanner system: moire
Troubleshooting procedure
Step |
Section |
Check item |
Result |
Action |
1 |
Original |
Moire distortions recur even after the orientation of original has been changed. |
NO |
Change the original orientation. |
2 |
Basic screen Original Type |
Moire distortions recur even after the original mode has been changed. |
YES |
Select Text mode or Photo mode. |
3 |
Basic screen Zoom |
The problem has been eliminated through the checks of steps up to 2. |
NO |
Change the zoom ratio. |