scanner problem - any ideas?

[Xxphd]

Originally Posted by Pleasure

Fast guess: A Knucklehead? Or some british?

Oh sorry this "bike" is propelled by human force..






the only two wheeled, motorized vehicle I own @ the moment is a scooter..

[Oudezijds]

Originally Posted by Pleasure

Fast guess: A Knucklehead? Or some british?

What do you mean by this? A joke? An insult? What? I do not understand. Ich verstehe nicht. Ik begrijp het niet. Ja nie paniemajoe. -or- To quote Desi Arnaz ". . . Joo ga a lot oh 'splainin' to do!"

[Xxphd]

Originally Posted by Oudezijds

What do you mean by this? A joke? An insult? What? I do not understand. Ich verstehe nicht. Ik begrijp het niet. Ja nie paniemajoe. -or- To quote Desi Arnaz ". . . Joo ga a lot oh 'splainin' to do!"

A classic type of motorbike
knucklehead = Harley Davidson

[zorin]

Originally Posted by Pleasure

Since the thing is standing near the heating I thought that the heat solved the problem (moisture inside?, but still ), 'cause when the room got warmer (in winter) the problem disappeared. But as there's no heating now, problem's here again.
I now "solve" this problem by cooling down the scanner and then give it another try. The scannersled is noisy (sounds like vibrating) these times and I get the feeling that it doesn't feel well

Is it possible that there's still some moisture inside (ca two months ago) Or does it really only feel well when the heating's on? Shall I use it again and again though it's so noisy?

Edith says: The sled is only noisy on the way to the pic/scanfield, the scan itself sounds normal.

The scan head should travel smoothly no matter if it is scanning or not. Is the scanner placed on a flat surface and supported by all its feet ?
The cheaper scanners are usually not very sturdy so their housings can warp slightly when not properly supported by their feet which affects the scan head's guide rails which in turn prevents the scan head from traveling smoothly across them.

Depending on how much water you used to clean the class with, some moisture could've entered the scanner housing. But I would expect any moisture to have evaporated long since.

I don't have a ready solution to your problem but a few suggestions :

To eliminate a possible moisture problem : remove the screws fixing the scanner housing's top half (with the glass plate) to the bottom half (containing the electronics, scan head and guide rails) and lift the top half slightly off the bottom half so air can enter. Leave it like this for an hour or so (like a box with its lid slightly ajar, not more otherwise you just run the risk of more dust entering the housing).
Unless there's a pool of water in the housing any moisture inside the housing should evaporate during that time.
After that put the two halves back together again and put the screws back in but avoid turning them too tight.

For the vibrating scan head problem : make sure the scanner is positioned on a flat horizontal surface supported by its four feet. Make a couple of scans of a small picture with the lid open so you can observe the scan head's movement as it moves into position. If the vibration is always at the same spot it could be a problem with the guide rails at that particular spot.
If the position, of where the vibration takes place, varies then it could just be a case of resonation caused by the scan head moving faster along the guide rails when positioning then it would when scanning.

To determine if the latter is true, take a full page scan. If no vibration takes place, you've got your answer.
If vibration still occurs during a full page scan, then a guide rail problem is more likely. This might be caused by the proximity to the heater during winter causing the guide rails to no longer be completely parallel to each other. Nothing much can be done about that.

Hope the above is of some use to you.

Z