How do you calibrate the strait-line wall scanner 150

Model number slightly different but probably works the same.

That's all I got was a black strip. My solution was to get a new Neat Receipts mobile scanner. It works great and I didn't have to make any software changes. It was worth the price for a new one compared to all the hassles I had with the old one.

It's not rollers. Try taking the glass guides out and cleaning them. Then calibrate. If that doesn't fix it then cleaning mirrors in cameras is next step.

I suspect there are several models but I have one model. 1) Turn on the unit (if the green light is blinking replace the battery). 2) Calibrate the unit by holding it flat against the wall for 5 seconds until the red light goes off and the beep stops. Make sure you do not move the unit during the calibration or position the unit over a stud (try a spot 6-12" away from the corner of the wall - most studs are on 16" or 24" centers and the wood/metal stud is 1 1/2" thick). If the unit keeps beeping or the red light doesn't go off during the calibration, move the unit sideways 5-8" in case you are above a water pipe or other reason for "too deep a surface" for the unit.

3) Do not lift the unit off the wall or you will need to recalibrate it. Slide the unit across the wall. When the upper red light comes on and the beeping starts, that marks one edge of the object in the wall (stud). Continue until the red light goes off and the beeping stops. Mark the other edge of the stud by moving the stud finder in the opposite direction and marking when the red light comes on and the beeping starts. The center of the two marks is the center of the stud for securing anything to the wall.

If the beep persists over a 6" range, I'd check if you have any old cast-iron pipes or a door/window that was relocated in that wall. Repeating the test in a few places vertically along that spot of the wall will tell you there is a consistent large object in that location. Neither a filled in window or door will run the entire length of the wall but you could be finding the headers (the vertical framing of the opening would probably be ~4-6" wide (double or triple stud depening on the needs of the house design)).

I hope this helps.

Cindy Wells
(on another stud-finder that I borrow, you press the buttons on the right and left side to turn it on. Calibrate by holding it to the wall for a short while and then slide it across the wall. Note when the top red led lights and the beep starts. Repeat in reverse to find the other side of the stud.)

Yes. The lights represents the stud. As you move it over each light lights up.

These usually need to be calibrated in a stud-less section of the wall so that the LED just goes out. Slide the finder over the wall slowly until the light turns on--that is the first edge. Continue moving and the LED should go out--that is the second edge. These two points should be marked lightly with a pencil and the midpoint between the marks locates the center of the stud. Note that these tools will respond to wiring in the wall the same way. Hope this helps!

Calibration Sheets and Cleaning Kit $2.98 plus shipping.
http://www.opticsplanet.net/pentax-dsmobile-600-calibration-cleaning-kit-206717.html

have a pandigital scanner that worked great for about 500 pics then lines stared to show up, tried cleaning and calibrating but did not help, decided to take apart and found that the glass on the surface of the scan part was dirty, cleaned the glass and put back together works perfect, took about 10 minutes to fix

WE DID NOT HAVE A "CLEANING SHEET" AS WAS SUGGESTED BY THE MAKERS OF THE VISIONEERS. APPARENTLY OURS DID NOT COME WITH ONE UPON PURCHASE. HOWEVER, WE WERE SUPPLIED WITH A CALIBRATION SHEET. WE SIMPLY RAN THE CALIBRATION SHEET AGAIN ...... PROBLEM SOLVED.

Try running a calibration. This is done thorugh ScanGear in Advanced mode. Once in Advanced Mode, in the Image Settings section there should be an option for Calibration (you may have to scroll down in this section to see it). After running the calibration, try performing a preview scan with nothing on the scanner glass. If the red line shows up on the preview now, then most likely the scanner needs to be serviced.