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Input/Output/Workflow Scanning, printing, color management, and discussing best practices for control and repeatability

How can you tell if your scanner is behaving?

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  #1  
Old 10-19-2006, 01:37 PM
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Donamai Donamai is offline
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Post How can you tell if your scanner is behaving?

Hi

A friend of mine gave me a BearPaw 1200TA scanner that he bought and never used.

I am very new to scanning images for composition and I have never used scanners in the past so I am not current on how to use them correctly.

I have never paid much attention to scanning methods as I only use the scanner to get old images or things I want to save digitally. Recently I was working on images for composition and I have seen than when I scan pictures or objects I get green lines on them.

My first thought was that the light it is blocked or that the glass could be scratched but seeing it directly on the scanner you don't notice much.


The lines are visible only if I get to brighten the images. As you can see in the examples.

Now, my questions are:

*Has anything like this happened to anyone here?


1.Are these lines supposed to be there? Because they are not visible when you don't lighten them.

2. Do I have to adjust anything on the scanner software preview settings before I actually scan it? I know for some images this could not be the case but if resolution is a problem or if I need to change the settings I go ahead and use it.

3. Is there something I am not doing right when it comes to scanning the proper way for my images? Now that image resolution and quality is a must, I have to be very aware on this scanning skill.

4. I have tried scanning negatives, as this model comes with this nice choice, but still I get those lines if I get to lighten them.

4. This is the only scanner I have for the moment but I you guys recommend getting a better one I will buy a new one...What is the best and affordable scanner in the market right now? I don't scan images for business that much but it would be nice to hear some advice on this if you think I need a new one.

Maybe I am not scanning correctly... maybe I am not giving the proper options at the time of scanning that my poor skills on this are shown in the results.

I have read some of the threads and found some info but it does not seem to resolve this little problem:

http://www.retouchpro.com/forums/inp...ighlight=lines

I am one of those people that belive that you don't have to have expensive equipment to create beautiful images but I also believe that if you have the right tools you work even better!

I appreciate your time.

I am posting some examples and images of the settings for the scanner

Take care!
Attached Images
File Type: jpg feathers.jpg (95.7 KB, 36 views)
File Type: jpg boblines.jpg (89.1 KB, 32 views)
File Type: jpg Setting-options.jpg (93.4 KB, 17 views)

Last edited by Donamai; 10-19-2006 at 02:37 PM.
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  #2  
Old 10-19-2006, 03:25 PM
mistermonday mistermonday is offline
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Re: How can you tell if your scanner is behaving?

Don, the lines are sharp, vertical, and appear to be in the same position relative to each other. To me this implies either dirt on the scan sensor or a defective element / diode on the sensor. Short term remedy would be to use the pen tool to superimpose a path on top of the line by clicking on one end of the line and then the other. Select the Clone Stamp tool and with a very fine brush, sample very close to the line / path and just beside the beginning of the line. Then from the context menu in the Path Palette, choose Stroke Path. When the dialog box comes up, choose Clone Tool from the pull down menu. This will allow you to save a ton of time to fix the images you need to scan short term. Long term, you will probably need to get the scanner looked at. Depending on the value of the scanner, it may be more cost effective to just purchase a new one.
Regards, Murray
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  #3  
Old 10-19-2006, 03:26 PM
Jerryb Jerryb is offline
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Re: How can you tell if your scanner is behaving?

hi,
now there could be many reasons ie; scanner just plain bad, or the drivers need updating, or might be just too close to some of your electronic equipement...

but in a lot of cases
a. the glass is dirty... some manufacture will put tape on the glass and when pulled off a glue residue may be left... so try cleaning the glass...
b. a common issue is either dust particals on the tube or on the reflection mirror...
here try to clean with compress air..... and hopefully that will dislodge the particals....

looking at there website..... smile... not a whole lot for teck support other than emailing them..!!

For graphic scanning, low price scanner, microteck!! they get good reviews the only thing is there scanning of slides/negatives... there good but but extremely slow... you could wash the car while scanning negatives.. smile..


other than that you need to hit the reviews... your epson and cannons and hp there all good.. with various prices....
Quote:
Originally Posted by Donamai
Hi

A friend of mine gave me a BearPaw 1200TA scanner that he bought and never used.

I am very new to scanning images for composition and I have never used scanners in the past so I am not current on how to use them correctly.

I have never paid much attention to scanning methods as I only use the scanner to get old images or things I want to save digitally. Recently I was working on images for composition and I have seen than when I scan pictures or objects I get green lines on them.

My first thought was that the light it is blocked or that the glass could be scratched but seeing it directly on the scanner you don't notice much.


The lines are visible only if I get to brighten the images. As you can see in the examples.

Now, my questions are:

*Has anything like this happened to anyone here?


1.Are these lines supposed to be there? Because they are not visible when you don't lighten them.

2. Do I have to adjust anything on the scanner software preview settings before I actually scan it? I know for some images this could not be the case but if resolution is a problem or if I need to change the settings I go ahead and use it.

3. Is there something I am not doing right when it comes to scanning the proper way for my images? Now that image resolution and quality is a must, I have to be very aware on this scanning skill.

4. I have tried scanning negatives, as this model comes with this nice choice, but still I get those lines if I get to lighten them.

4. This is the only scanner I have for the moment but I you guys recommend getting a better one I will buy a new one...What is the best and affordable scanner in the market right now? I don't scan images for business that much but it would be nice to hear some advice on this if you think I need a new one.

Maybe I am not scanning correctly... maybe I am not giving the proper options at the time of scanning that my poor skills on this are shown in the results.

I have read some of the threads and found some info but it does not seem to resolve this little problem:

http://www.retouchpro.com/forums/inp...ighlight=lines

I am one of those people that belive that you don't have to have expensive equipment to create beautiful images but I also believe that if you have the right tools you work even better!

I appreciate your time.

I am posting some examples and images of the settings for the scanner

Take care!
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  #4  
Old 10-19-2006, 08:56 PM
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Littlecoo Littlecoo is offline
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Location: Brisbane, Australia
Posts: 344
Re: How can you tell if your scanner is behaving?

Ok, this image I attached is a scan from one of my old scanners. The 'band' artifact travels along the whole length of the glass in the same direction as the lamp/lens. In this case the cause is fumes from the inside of the plastic casing (no doubt encouraged by long exposure from the lamp) has built up a residue over the glass surface, the banding is actually where part of the scan carriage has rubbed the residue away. The bands are not greatly visible on the actual glass itself but show up clearly in scans. Is this maybe what you are dealing with?
Attached Images
File Type: jpg dodgyscanner.jpg (100.0 KB, 19 views)
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  #5  
Old 10-19-2006, 10:04 PM
PeteyB PeteyB is offline
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Posts: 67
Re: How can you tell if your scanner is behaving?

This might be the answer

http://www.scantips.com/faq1.html#lines


Pete
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  #6  
Old 10-20-2006, 05:06 PM
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Donamai Donamai is offline
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Join Date: Dec 2002
Location: Los Angeles
Posts: 75
Thumbs down Re: How can you tell if your scanner is behaving?

Hi again!

Thank you for your time!

I read your post Jerryb and I found some good solutions there. Thank you for the advice as well.

Littlecoo, I have to thank you for taking the time to post the image. It made a lot of sense after I read your info.


Also, Peteyb I don't know where you found your that link or if it's yours but It definitely help me clear my doubts about the dirt or bad cells inside the Scanner. After reading, I had remembered that this scanner spent some good time with the lamp on and that is probably the cause of all this lines.

thank you all for the answers. I have not tried to solve the problem yet but now I am sure I just have to buy a new scanner for future work. Wish me luck!
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  #7  
Old 10-21-2006, 08:41 AM
PeteyB PeteyB is offline
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Join Date: Apr 2006
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Posts: 67
Re: How can you tell if your scanner is behaving?

Don

I discovered Scanning Basics 101 (http://www.scantips.com/) a few years ago. It is one of the best sites on the web dealing with scanning and digital images.

The sites author (Wayne Fulton) also publishes a comprehensive book entitled "A few scanning tips"


Pete
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