Question about Acer ScanPrisa 640P Flatbed Scanner

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I need the output voltages of scanner acer flatbel 640.. is it 16 dc or 12 dc voltages ?

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  • Selio Feb 02, 2009

    I need to specify the output voltage for my scanner. Is it 12v or 16v ??!

  • matherqa May 11, 2010

    output voltage is 12V

  • Ananda Athukorala Feb 13, 2013

    I think 12V/0.9A. Becuase for AcerScan Prisa 320P power to the scanner is 16V/0.9A

  • Ananda Athukorala Feb 13, 2013

    Sorry, typing mistake. it may be 16V/0.9A

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Dear friend,

the voltage out put of your scanner is 16v DC, 0.09A


jyro101@yahoo.com

Posted on May 06, 2009

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Power lead required


You can use any 12-Volt DC power supply capable of sourcing at least 1A. This is probably the most common transformer voltage and most people have at least one lying unused around their home. If not, they are easy to find at thrift shops. Just read the label, which must indicate that the output is 12VDC, 1 Amp. Greater than 1 Amp is fine, less that 1 Amp will not do. The label should also indicate the polarity of the connectors, and this is shown with a drawing of a small circle within a larger one. On the type you want, the smaller circle indicates the center conductor of the connector, and will be associated with a "+" sign, and the outer circle a "-". The only other thing you need to check is that the connector is the right size. Here again, the one you need to fit the scanner is probably the most commonly used, and rather easy to recognize.
Here's a picture of a typical label. Note the output voltage and current rating is clearly indicated.
8fd337c1-b361-49dc-b7eb-667381e2d862.jpgGood luck!

Apr 25, 2012 | Xerox One Touch 2400 Flatbed Scanner

1 Answer

No power electric


If the scanner is plugged in and seems to have no power, then the voltage control board is likely burned out, the scanner runs on 12 volts Direct Current and so house power is converted to the DC 12 volt. Unless this is a very high end scanner fixing it is cost effective, scanner and all in one printers are so cheap it just doesn't make sense.

Feb 09, 2012 | HP ScanJet 5300C Flatbed Scanner

1 Answer

The power adapter is bad. What are the power requirements for this unit i.e visioneer 9220 USB scanner


Hello! You can actually get this directly from Visioneer for $19.99.
http://www.visioneer.com/products/parts.asp?PN=9220
Otherwise the power specs in the manual are here.
Power supply Input voltage/frequency 100 Vac, 50/60 Hz (Japan) 120 Vac, 60 Hz (North America) 230 Vac, 50 Hz (Europe) Output voltage/watt 12 V DC, 15 watt maximum
http://support.visioneer.com/downloads/Manuals/9220/9220_Install.OT3.EN.pdf
If this helps, please give a positive rating. Good luck to you!

Jul 01, 2011 | Visioneer OneTouch 9220 USB Color Scanner

1 Answer

What is the proper DC power supply voltage for an


Power supply details are as follows:
Input voltage/frequency 100 Vac, 50/60 Hz (Japan)
120 Vac, 60 Hz (North America)
230 Vac, 50 Hz (Europe)
Output voltage/watt 12 V DC, 15 watt maximum

Mar 12, 2010 | Visioneer OneTouch 8100 Flatbed Scanner

1 Answer

Power coverter to scanner failure.which unit should i buy? present one 240v 50/60hz.0.4A. output 12v.dc.i.25A


I just found my Canon 5000F scanner to have a power supply outputting 3V DC instead of 12V DC. I replaced it with a 12V DC Power Supply from Tandy rated at 1.5 amps. I had the scans getting darker by the day and sometimes completely black. Now I have great scans again. Just test the voltage at the plug that supplies the scanner for a healthy 12V DC with a multimeter.

Jan 20, 2010 | Canon CanoScan 5000F Flatbed Scanner

1 Answer

I misplaced the power supply for my visioneer 4400usb scanner. Can anyone tell me the voltage output to the scanner?


Power supply
Input voltage/frequency 100 Vac, 50/60 Hz (Japan)
120 Vac, 60 Hz (North America)
230 Vac, 50 Hz (Europe)
Output voltage/watt 12 V DC, 15 watt maximum

May 24, 2009 | Visioneer 4400 Flatbed Scanner

1 Answer

Lost the power plug what kind is it


1. You can buy a new power plug here.
2. You look at the power connector on your scanner and try to find a replacement with the following specifications:

Input voltage/frequency:
  • 100 Vac, 50/60 Hz (Japan)
  • 120 Vac, 60 Hz (North America)
  • 230 Vac, 50 Hz (Europe)
Output voltage/watt:
  • 12 V DC, 15 watt maximum
If you try to find an AC/DC converter yourself, make sure that the DC plug has the right +/- polarity and right size.

Jan 11, 2009 | Visioneer 4400 Flatbed Scanner

1 Answer

Scanner prints just black sheet


The mystery is solved!!
I live in Norway and my CanoScan 5000F has worked brilliantly until it suddenly started to display a black preview in ScanGear, black scanning and to no surprise,- a completely black printout.
My first thought was that the scanner-lamp had died,- but that was strange because I hadn't used the scanner that much. I hadn't made any changes to my computer system either. The operating system (Windows XP), scanner software and drivers were exactly as before.
I made a new testrun and saw the light come on from the side of the scanner and move along the platen as usual. The sound and operation of the scanner seemed to be all normal.
A quick check on the internet revealed that there were many other guys out there who had experienced the same problem. Some had tried new drivers, uninstalled and reinstalled, but to no luck. I also tried the same method, but was stuck with the same problem.

I have a background as an electronic service-engineer, and this mystery really gave me a good challenge. Why did so many people experience the same thing? Why couldn't Canon answer and give a reasonable explanation to the phenomenon? What was the common factor in all these cases?

Every scanner is connected to the mains via a power-unit. Mine is European standard with type nr. PA-08E. It is labelled with output DC 12V (stabilized!) and a rated current of 1.25 A at this voltage.

I brought the power-unit to my lab for a test. When I measured the voltage without any load (no scanner connected) it read 12 V as stated,- so it seemed to be ok.
But when I connected a load (a car light bulb 12 V / 3 W - equivalent to a current of just 0.25 A), the lamp just barely glowed and the voltage (that should be 12 V constantly) dropped to just 4 V.

This proved without any doubt that the power-unit was defect. It could no longer maintain a constant 12 V during load.

I had a variable power-supply in my lab that could be set to 12 V and connected to the scanner for a test. But Canon had made a very peculiar connection to the scanner by using a rare male power plug (with a center (+) pin inside). Normally a round hollow (female) plug is used on such power-units.
So I cut the DC cable a few centimeters from the power-unit, split the two leads 4 cm apart and dismantled 1 cm of insulation from each end. On my power-unit one of the leads were marked all the way with text, and this one proved to be the minus (-) lead connected to the outer (metal) part of the DC plug.
The two ends were connected to my power-supply (with correct polarity!), and the other end with the DC plug were connected to the scanner. Power-supply was switched on and my computer system was restarted.
I opened the Paint Shop Pro program, clicked 'Twain Acquire' and the ScanGear CS window appeared.
After this insident a calibration of the scanner is required: Close the lid with no document inside, click 'Advanced Mode >>' down right and then 'Settings' / 'Quality' / 'Calibration'. The scanner will do some adjustments for a few seconds and finish when the small calibration window close.
At last my CanoScan 5000F came back to life again. The preview was normal, and the scanned images as superb as they had been before.

Conclusion: Do not throw your scanner away! Buy a new power-unit with DC 12 V stabilized and at least 1.25 A. Brand is not important as long as it is of good quality and correct voltage/current, but cut and use the cable and plug from the defect power-unit as I described earlier. Remember to isolate the connecting area (+ and -) firmly.

Regards Tore Nilsen
Harstad, Norway

Nov 22, 2008 | Canon CanoScan 5000F Flatbed Scanner

1 Answer

Can anyone tell me if the 12 volt powersupply is 12 volt AC or DC ?


Model HER-48-12010
P/N: 68300021-0013
AC Input
DC Output

Sep 20, 2008 | Compaq S 200 Flatbed Scanner

3 Answers

Plugs for Astra Scanner 1220U


Ran across your request for information about the cables needed for hooking up the Umax Astra 1220U scanner. The scanner require a standard older version USB cable that hooks the scanner to your PC. The second cable is the Power Supply Adapter cable. The information listed on the Power Supply Adapter is listed below. P/N 490081-03 Input 120 Volt @ 60 Hz 0.3 amps Output DC 12 Volts @ 1 Amp Model # RWP481212 You should be able to get the scanner to work as long as you can find any power supply that has the listed Input/Output ratings, an adapter that will plug into the scanner. Hope this help you. disaksen

Apr 07, 2008 | Umax Astra 1220U Flatbed Scanner

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