Toshiba e-Studio 4515AC
Troubleshooting. Image 3. Poor image density, color reproduction and gray balance
Procedure
| Cause/Section | Step | Check Item | Measures |
|---|---|---|---|
| Density / Color reproduction / Gray balance | 1 | Check the image density / color reproduction / gray balance. | Perform the enforced performing of image quality closed-loop control (FS-05- 2742) and then automatic gamma adjustment. |
| Printer density | 2 | Check the density of printer output image. | Output the test patterns and check them. Using FS-04-36 for each color. See step 5 if defect occurs. |
| Scanner | 3 | Check if the original glass, mirrors or lens is dirty. | Clean it. |
| Parameter adjustment value | 4 | Check the image processing parameters. | Adjust the color balance (color). Adjust the image density. |
| Printer output image abnormal | 5 | Is there any faded image (low density)? | Perform the troubleshooting procedures against the faded image. |
| Is there any fog in the background? | Perform the troubleshooting procedures against the background fogging. | ||
| Is there any blotch image? | Perform the troubleshooting procedures against the blotch image. | ||
| Is there any poor transfer? | Perform the troubleshooting procedures against the poor transfer. | ||
| Is there any poor cleaning of the transfer belt? (Check inside the equipment.) | Correct the transfer belt area. |
* If the trouble is not solved at the step 1 and the step 2 or followings (excluding the parameter adjustment) are performed, make sure to perform “Enforced performing of image quality closed-loop control” and then “Automatic gamma adjustment” after taking a measure.