I have Visioneer OneTouch 5800 Scanner. I keep getting an error message to "Unlock" my scanner-located on the bottom of the scanner. There is NO lock on the bottom or sides. How do I get my scanner to work again? Pls help me sir/madam. My scanner is giving this serious problem. I need ur help. Thx Varlee
I was getting this message when i was using the wrong power supply, i used a diffrent power supply and restarted the computer and it no longer says it, so i couldnt tell you exactly which one made it work, but now i get a box telling me i dont have enough disk space??? any anwsers for that??
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My one touch 5800 USB scanner worked great on XP for over a year and then started giving me the unlock the scanner message. I tried different power supplies, reloading software and moving it to a machine running 98SE and nothing improved. I left the cover open and noticed that the lamp was fairly bright at the sides but very dim in the center. I replaced the lamp with one from an old parallel port scanner which was in good shape and it now works perfectly on 98SE. I have not connected it to a XP machine yet.
5800 scanner does not have a physical lock switch. DO NOT attempt to open the
scanner and unlock the hardware. This could be either a hardware failure or
the lock switch on the scanner leaving the switch in the unlocked (open
you are using the correct power supply for your scanner. If you are using a
power supply that has the incorrect DC output, you will get a scanner locked
error message. This flatbed scanners has I believe 100-120V AC input and 12V DC
the power directly to the wall, not a UPS battery back-up, power strip or surge
protector. Power fluctuations from a UPS battery back-up, power strip or surge
protector may be causing this error. If all this fails try reinstalling the
I don't know what your electronics skill level is, but if you feel up to it, try taking the scanner apart and using a jumper wire to close the circuit so that the scanner is permanently unlocked. At least on a scanner this old you do not need to worry about voiding any warranty...
Power supply has to put out 1.25A. If it is either too weak due to age, not directly connected to the wall where it can get the power it needs or the wrong replacement, it won't work and you'll get this error. Also, the voltage is 12V (positive tip).
I have the same problem with a 5800 and 5820 model occasionally. No switch. But I have found if I jiggle the cords on the 5820 model or plug and unplug it will eventually work. With the 5800 model, I have had to lift the back end and gently tap the bottom while it is beginning to scan, it "unlocks" and continues. Hope this works for you.
Most scanners shipped have a lock on them to prevent the top from opening up and damaging the glass. This is a screw type mabey other but a penny fits in mine. This may not be the case for you but look in your manual to find the unlock device.
This will also in some scanners prevent the stepper motor from moving in transit . The stepper motor is the device thats makes the bar slide up and down to scan the page.
Hope this helped some.