Question about Canon CanoScan D646U Flatbed Scanner

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The belt is broken

How do I open the case?

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I have lost my cd of driver i lost my driver cd so pls give me the way to download ma scanners driver scanner driver

Posted on Sep 06, 2008

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When plugged in via usb, the LIDE 600F scanner makes a high pitched buzzing noise and will not start up.


Hi

The scanner is not able to find the home position to start.

Hence open the scanner and check to make sure the scanner assy. is moving to the end and when it senses the home position it will try to move a little away from it and then return back. But if the sensor is dirty or broken it will make a loud noise like belt slipping.

Try to find the sensor on back of the Tube assy. and try to fix it.

Jul 23, 2011 | Canon CanoScan LiDE 600F Flatbed Scanner

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Not moving < Agfa Duoscan T1200 Flatbed


Try this ;

Re-seat the batch of documents gently into the document feeder Confirm the automatic document feeder is closed
Connect the interface cable correctly
When the scanner is the last or only device on the SCSI bus, set the terminator switch to ON; otherwise set it to off

Hope that helps if not have the scanner replace.....

Jun 27, 2008 | Office Equipment & Supplies

1 Answer

When I turn on my Canons 5000f scanner the computer detects the scanner but when I try to scan anything it makes a humming noise and a message comes up saying that I should unlock the scanner unplug the...


I am having the same problem. I believe it is a belt inside. How do I open the unit up? I can pry it open a little bit, but I don't want to crack the casing.

Feb 17, 2011 | Canon CanoScan 5000F Flatbed Scanner

1 Answer

No response when I turn on power.


First check to see if belt is hanging loose due to broken plastic mounts at forward mounting point.

This happened to both mine and my sister's 3170. The plate holding the belt pulley wheel is held by two very small plastic flanges. At between a year to a year and a half the flanges fatigue and break causing the forward pulley wheel to break free. With the belt no longer able to turn the scanner won't initialize, the lamp won't light and the red flashing light comes on. The fix is rather simple though. Simply drill a small hole through the bottom of the case and place a small metal screw through with the screw head placed so that it overlaps the pulley wheel base thus holding everything down snugly. Fixed both scanners with this fix. In my opinion, just poorly engineered and perhaps even "designed in obsolescence". Most people would simply toss it and buy another considering what it would cost to send it in for service. You might even get charged for a new lamp that you didn't need. That was what Epson Service diagnosed the problem as over the phone.

Jan 10, 2010 | Epson Perfection 3170 Flatbed Scanner

3 Answers

Epson Perfection V500 photo scanner, carriage unit unable to move


I have had the sam problem on 2 of the same scanners. Open the scanner cover and slide the transparency unit transportation lock to the unlocked position. Then close the scanner cover.Power it on and there you go.Somehow this little switch can get moved and there is the grinding noise and not working.

Aug 16, 2009 | Epson Perfection V500 Flatbed Scanner

1 Answer

My Epson Perfection 4990 indicator light is flashing red shortly after the scanner is turned on. The manual says that the light tube needs replacing. How do I do this or is it a professional repair?


I had the same problem and first checked the instructions in the Epson manual on the red flashing problem, read the following pdfs: Indicator light or problems

I saw the fluorescent lamp come on for a second before the indicator light started to flash red, so I knew that the lamp was ok and did not need to be replaced. Try this turn off the scanner and try unplugging the transparency lid from the back of the scanner, turn on the scanner and see if the light goes back to green. My issue turned out the be the mechanism inside the transparency lid, I kind of heard an awkward noise when I turned on the scanner, but thought it was coming from the base, I rlocked and unlocked the transportaion lock on both the base and lid, to see if that would fix it but it turned out it was coming from the lid, where there is also moving parts inside using a belt and wheels. On the end wheel closest to the front, the 2 little plastic pegs that hold down the square metal plate with wheel broke off, I could hear them inside when I lightly shook the lid, anyways I opened up the lid by removing the 5 screws and you need a screwdriver to put in each of the little openings around the edge to pry open the lid. I removed the belt and metal plate, watch out there is a spring attached to it, don;t forget how this part works when you put it back on, I found both of the little broken pegs and glued them back on with a strong plastic epoxy glue that I bought at Ace Hardware, I let that dry for 24 hours and then put the metal plate and wheel on then put the belt around the wheel, and now everything works fine.

Mar 06, 2009 | Epson Perfection 4990 Flatbed Scanner

1 Answer

Broken drive belt


Remove the top cover. There is a catch at the side of the hinges.

Use a plus screw driver to remove the screws underneath the cover.

Remove the cover by using a minus screw from behind, and then slide the glass out from the back.

Aug 24, 2008 | Canon CanoScan D646U Flatbed Scanner

2 Answers

Epson 4180 scanner w/ possible drive belt problem


Check if you have a toggle lock at the back of your scanner, when you are facing the back of it, its on the right hand side near the tpu cable. toggle that 3x and make sure it on the UNLOCK position.

Mar 12, 2008 | Epson Perfection 4180 Photo Flatbed...

1 Answer

How do I open up a CanoScan LIDE50 so I can reattach a loose cable?


Hi,

Most (but not all) desktop scanners' casing are locked in place by bottom screws. Often these screws (2~4) would be underneath the rubber feet/pad of the scanner or a sticker. In some models, there are narrow slots underneath. These slots are the locking points of the top cover and would require the use of a flat screwdriver to pry open. Still others are simple snap locks at the front/rear portion of the junctions of the top and bottom cover/panel. Other than the screw type, most opening would require a bit of force to un-snap the locks. It helps to slightly pry the joints open with a flat tool such as a metal ruler and force only on the areas determined to have the snaps.

Should you be successful in prying the halves apart, the glass is held in place sometimes by an angular plastic strip locked in place by 2 small screws.

The driver is available here. Pls be reminded that drivers are OS specific.

Hope this be of help/idea. Pls post back how things turned up of should you need additional information.

Good luck and kind regards.

Feb 04, 2008 | Canon CanoScan LIDE50 Flatbed Scanner

1 Answer

Can't figure out how to open the case


There may be lock system rather than a screw. Please see the lock and it will be opened by pressing a lock node(s) or aplying the force in a paticular direction. Do not try to open force fully. Refer manual of scanner if there are instruction to open the case.

Aug 23, 2007 | HP ScanJet 3300Cse Flatbed Scanner

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