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Got a gray cast when scanning despite white paper?


It is not uncommon for older scanners to have a gray cast when scanning white paper on Windows 11, 10, ... and MS Server OS!




Since the scanner is getting older and older, regardless of whether it is EPSON, CANON, HP, BROTHER, ... the light of the scanning lamp becomes weaker and weaker over time. It is a simple sign of age on the scanner; stripes and other errors can even occur during scanning. It is not the WinScan2PDF program!



Content:

1.) ... Solving the gray cast problem on white paper!
2.) ... Example when scanning with and without increasing the holiness by 25%!
3.) ... What should I watch out for when increasing the brightness when scanning?



See also: ►►  How can I determine the order of the individual PDF pages?

1.) Solving the gray cast problem on white paper!

1. Start WinScan2PDF as always 

2. Go, for example, to Edit WIA profile

3. Press the "Add" button

4. Create a new scan profile with 25% more brightness  
(PS: here in the example EPSON XP-305 one from my old test scanners) 

5.  Don't forget "save profile"

PS:
Use the new scan profile for your problem scanner. Fixing the gray cast problem on white paper is quite easy and is not so rare with older scanners!


(Image-1) Gray cast when scanning white paper!
Gray cast when scanning white paper!

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2.) Example when scanning with and without increasing the holiness by 25%!

Left with 25% more holiness on the EPSON XP-305 ( ... see Image-2 Point 1 )

Right scan with standard settings ( ... see Image-2 Point 2 )


(Image-2) Have a gray cast while scanning despite white paper?
Have a gray cast while scanning despite white paper?

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▲ Back to the top ▲


3.) What should I consider when increasing the brightness when scanning?

Check on the device whether the foil has visible contamination, also clean the glass surface in the scanner and then make further copies before they change the sanctity. 

The brightness should only be increased so that the sheet becomes lighter, but the letters do not fade during scanning!

( ... see Image-2 Point 1 and 2 )

See also:   Should I use the WIA or TWAIN scanner interface?




Next Technical tips Brightness, quality etc. when scanning? 

When increasing brightness when scanning, there are some important considerations to keep in mind to ensure your scanned documents have the quality you want:

Document type and content:

Consider the type of document you are scanning. Text documents typically require less brightness than photos or images.

Use Preview:

If your scanner has a preview feature, you can use it to check the effects of brightness adjustments on the scanned image before scanning.

Experiment with the settings:

For best results, we recommend experimenting with the brightness and contrast settings. Some scanners offer automatic settings that can be helpful.

Consider the purpose and intended use:

Think about what you want to use the scanned documents for. For example, if you are scanning documents for printing or archiving, you may need different brightness settings.

Scanner Calibration:

Make sure your scanner is properly calibrated to ensure accurate colors and brightness levels.


►►  Example Brother

original documents:
When scanning original documents, make sure that they are clean and free of dust and dirt, as these contaminants can affect the quality of the scan.

Post-Processing:
If necessary, you can use image editing software after scanning to further adjust brightness or make other corrections.



Storage Format:

Remember to select the correct file format and quality for your scanned documents. For text documents, a medium to high quality PDF format is often sufficient.
Check the results:


After scanning, check the results on your computer screen to ensure the brightness meets your needs before saving or printing the scanned documents.

Documentation:  If you frequently scan certain types of documents, consider the optimal settings to save time on future scans. By following these tips and adjusting the brightness to suit your needs and the content of the documents being scanned, you can ensure you get high-quality scans.











FAQ 28: Updated on: 23 May 2024 19:07 Windows


► ► ► ► ... more information about the software WinScan2PDF     

WinScan2PDF

Change WIA scanner profile Select color format, color, grayscale, black and white!


It is easy to change the scanner profile in the WIA to select the color format, color, grayscale, black and white on MS Windows 11, 10, and MS Server
WinScan2PDF

Should I use at feed scan TIF, JPG BMP or PNG for pages?


TIF sometimes appears as the standard for a feed scan, including JPG, BMP, PNG, etc., which should be used under MS Windows 11, 10, OS It is so
WinScan2PDF

Can I also use my slide scanner with Win Scan to PDF?


Why not, you can also use the slide scanner with WinScan2PDF as long as it supports WIA or TWAIN on Windows 11, 10, and MS Server OS 1. also use
WinScan2PDF

Scanning with WinScan2PDF under Windows 11 is possible?


Yes, you can scan to PDF with WinScan2PDF on MS Windows 11 OS and use it without any problem   Content: 1. WinScan2PDF under Windows 11 2. Scan
WinScan2PDF

Backward sorting of PDF scans?


Starting with version 8.22, it is possible to sort the scans backwards, whether all files or only selected files, regardless of the scanner you use  Contents:
WinScan2PDF

What is Win-Scan-2-PDF for Windows suitable for?


Detailed user questions and answers about WinScan2PDF , divided into 10 categories. The questions are related to user questions about scanner to PDF under
WinScan2PDF

What are the benefits of using WinScan2PDF on Windows?


Detailed user questions and answers about the benefits of WinScan2PDF under Windows 12, 11, and 10 , divided into categories regarding WinScan2PDF as a useful

»»

  My question is not there in the FAQ
Asked questions on this answer:
  1. Can I fix the gray cast problem by cleaning the scanner?
  2. Can I avoid the gray cast problem by changing paper?
  3. Is the gray cast problem on white paper a known phenomenon?
  4. Are there differences in the occurrence of the gray cast problem depending on the scanner model?
  5. How can I ensure that the new scanning profile is saved correctly?
  6. What long-term effects does the gray cast issue have on the scanner?
  7. What effect does an increase in brightness of 25% have on the scan result?
  8. What steps can I take to increase brightness when scanning?
  9. How does weakening of the scanning lamp over time affect the scanning result?
  10. Can I fix the gray cast issue with software updates?
  11. Are there alternative methods to solve the gray cast problem?
  12. Can the gray cast problem be solved by software like WinScan2PDF?
  13. Which software is best to solve the gray cast problem?
  14. How can I create a new scanning profile to solve the gray cast problem?
  15. What role does the quality of the scanning paper play in the occurrence of the gray cast problem?
  16. What role does the operating system play in the occurrence of the gray cast problem?
  17. What other problems can be caused by the gray cast problem?
  18. What factors can worsen the gray cast problem?
  19. What role does the age of the scanner play in the occurrence of the gray cast problem?
  20. Should I have my scanner serviced to resolve the gray cast issue?
  21. What parameters should be considered when creating a new scanning profile?
  22. Can I adjust the brightness during scanning?
  23. What other problems can occur with scanning and how to fix them?
  24. What role does the light source play in the occurrence of the gray cast problem?
  25. Are there specific brands of scanners where the gray cast problem occurs more often?
  26. What solutions are there for the gray cast problem on older scanners?
  27. Is the gray cast problem a sign of a scanner defect?
  28. Can I change the brightness settings directly on the scanner?
  29. Why can there be streaks and other errors when scanning?
  30. How can I ensure that the new scanning profile is suitable for my specific scanner?
  31. Can streaks and other scanning errors be permanently fixed?
  32. Does the gray cast issue affect the quality of the scanned document?
  33. How can I fix the gray cast issue when scanning white paper?
Keywords: winscan2pdf, gray, cast, when, scanning, despite, white, paper, uncommon, older, scanners, windows, 11, 10, server, Questions, Answers, Software




  

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