January 26th, 2008 at 11:53am Under Forum
a ____ is designed to scan flat objects one page at a time?
sheetfed scanner
handheld scanner
flatbed scanner
C-Pen scanner
Best answer:
Flatbed
By Barcode Scanner 4 comments
November 8th, 2007 at 05:02am Under Forum
Why does the length of the red light on a barcode scanner shorten after a certain amount of time unused?
I work at waterstones and i noticed that after about 40 seconds the red strip the scanner projects shortens to about half size, why is this? i mean i cant imagine its got much to do with energy consumption, i dont think it would have that much effect and i can imagine better ways of saving energy such as always having it shorter or by it turning off completely when its unused. Is it to do with the expiration of the scanner itsself? i couldnt imagine that would be it either as the light in the middle is always on, and if that goes it doesnt matter if the light around the two sides is still working…
I dunno, maybe im going into this too much but im just curious and i couldnt find anything on it with a quick google, any ideas?
P.S. i have no idea about the inner workings of scanners so the expiration thing may be complete nonsense, ill give that a quick google now ^^ thanks in advance for any help, this has really been bugging me.
Best answer:
Most likely the scanner is going into a low power mode. It sounds like you have a laser based scanner. It projects a laser beam to read the barcodes. Laser scanners have mechanical components. Basically a laser beam is generated and projected onto an oscillating mirror. That oscillating mirror is what gives the laser beam its length. When in use you need the full width of the laser beam to read wider barcodes. Moving that laser the full distance 100% of the time is extra wear on the mechanical components that isn’t needed. So after a pre-determined period of time the scanner goes into low power mode. This slows down the oscillating motor and probably also lessons the intensity of the laser itself. When an object is detected in the field of the view the scanner turns on at full power to read the barcode and stays on at full power until after you’ve read your last barcode for that transaction. After the last code is read a timer is started and once the timeout is reached the scanner goes into lower power mode again.
They can’t completely turn the laser off because they need some way to detect when an item is placed in the scan area and they use the laser for that detection.
They also do not like to leave the laser on full power all the time because it is a laser and it can cause eye damage if you were to stare at it long enough. By putting it in low power mode when it’s not being used it can’t damage the eyes of a child or even an adult that happens to be staring at it.
That’s the explanation for a laser based scanning system. If you have an image based scanning system the mechanism for lower power mode is much different.
Hope this helps.
By Barcode Scanner Add comment
October 22nd, 2007 at 01:51am Under Forum
What program should i use to design employees’ punch in/out time program?
We use a barcode scanner to detect our employees’ card…what program should i use?
php? foxpro (too old already?) ? VB 6.0?
Best answer:
Your best bet is php with a mysql database to hold the information.
By Barcode Scanner 2 comments
September 30th, 2007 at 08:44am Under Forum
Can I have two printers connected to my Mac at the same time, via USB?
I have an eMac (running MacOS 10.3.9) at home, as well as an inkjet printer/scanner/copier (aka all-in-one) and a laser printer. Would like to connect both to the eMac, via USB, using only one at a time. Is this feasible, or would I have to plug and unplug the cables?
Best answer:
If you had a network it would be possible.
By Barcode Scanner 3 comments
June 10th, 2007 at 12:46am Under Forum
I just printed out tickets to a show for the first time need help?
When you print out tickets do you need a certain type of printer or paper? or do you just need to have the barcode on the ticket? and does it matter if you print it in color or not? please help
Best answer:
the barcode is all that matters
By Barcode Scanner 6 comments
March 21st, 2007 at 10:25am Under Forum
How can I print 100 envelopes WITH BARCODES in MS Word 2003 at a time with the SAME destination address?
How can I print 100 envelopes WITH BARCODES in MS Word 2003 at a time with the SAME destination address? These will all have the same destination address and thus the same destination barcode.
I go to Tools | Letters & Mailings | Envelopes & Labels | Print. Currently, I have to print them ONE at a time because there is no option to select a quantity. It amazes me that Microsoft does not have a quantity option for this feature. How can I print 100 envelopes WITH THE BARCODE to the same destination address when there is no QUANTITY selector? I want to print 100 envelopes to someone I write all the time.
I know I can print 100 envelopes by going to File | Page Setup | Paper | Comm Env # 10, however when doing this it does NOT give the barcode option.
BigRez, good answer, but how do I delete the extra page? I only want to print envelopes, but MS Word shows both an envelope and an extra page. I dont want it printing 100 blank pages as well when I only want 100 barcoded envelopes.
Best answer:
Well, you know what to do if you ever get your hands on Bill Gates…
By Barcode Scanner 3 comments
February 23rd, 2007 at 03:02am Under Forum
Java programming (Time class) question – cannot find symbol?
In my java class we are supposed to code a time class that takes an amount of hours and minutes and converts it into a AM/PM time (im pretty sure anyways). This is what i have:
// Represents the time of the day in hours
// and minutes using the 24-hour clock.
public class Time
{
private int hours;
private int minutes;
public Time(int h,int m)
{
if ((h<24&&h>0) && (m<60&&m>0))
{
hours = h;
minutes = m;
}
else
{
throw new IllegalArgumentException(“INVALID”);
}
}
//This method returns the time in minutes
private int toMins()
{
return (60&hours)+minutes;
}
//Returns true if this time is earlier,
// false if a time passed as an argument or the times are the same
public boolean lessThan(Time t)
{
return toMins()
public String toString()
{
if(hours>12)
{
return hours+”:”+minutes+”P.M”;
}
else
{
return hours+”:”+minutes+”A.M”;
}
}
// Calculates the number of minutes that have passed by
// between the argument Time t and this time object.
public int elapsedSince(Time t)
{
if(t.toMins()
else
return (60*24)-(t.toMins()-toMins());
}
}
then to test that code we were given a TestTime code:
import java.util.Scanner;
public class TestTime
{
public static void main(String[] args)
{
Scanner keyboard = new Scanner(System.in);
System.out.println("Time 1" );
System.out.print("Enter hours: " );
int h1 = keyboard.nextInt();
System.out.print("Enter mins: " );
int m1 = keyboard.nextInt();
Time t1 = new Time(h1, m1);
System.out.println("Time 2" );
System.out.print("Enter hours: " );
int h2 = keyboard.nextInt();
System.out.print("Enter mins: " );
int m2 = keyboard.nextInt();
Time t2 = new Time(h2, m2);
System.out.println(t1 + " <= " + t2 + "? " + t1.lessThan(t2));
System.out.println(t2.elapsedSince(t1) + " minutes elapsed from t1 to t2.");
}
}
The problem is that when i compile the TestTime code, I get four errors all saying cannot find symbol pointing at these lines of TestTime:
Time t1 = new Time(h1, m1);
Time t2 = new Time(h2, m2);
Can anyone help me?
Thank you!!
Best answer:
Your code runs for me… It’s got to be a problem with your packages, as the javac can’t find the class Time. If you put TestTime as an inner static class of Time, everything runs nicely. Try this:
package com.jjk.util;
import java.util.Scanner;
public class Test
{
private int hours;
private int minutes;
public Test(int h,int m)
{
if ((h<24&&h>0) && (m<60&&m>0))
{
hours = h;
minutes = m;
}
else
{
throw new IllegalArgumentException(“INVALID”);
}
}
//This method returns the time in minutes
private int toMins()
{
return (60&hours)+minutes;
}
//Returns true if this time is earlier,
// false if a time passed as an argument or the times are the same
public boolean lessThan(Test t)
{
return toMins()
public String toString()
{
if(hours>12)
{
return hours+”:”+minutes+”P.M”;
}
else
{
return hours+”:”+minutes+”A.M”;
}
}
// Calculates the number of minutes that have passed by
// between the argument Time t and this time object.
public int elapsedSince(Test t)
{
if(t.toMins()
else
return (60*24)-(t.toMins()-toMins());
}
public static class TestTime
{
public static void main(String[] args)
{
Scanner keyboard = new Scanner(System.in);
System.out.println("Time 1" );
System.out.print("Enter hours: " );
int h1 = keyboard.nextInt();
System.out.print("Enter mins: " );
int m1 = keyboard.nextInt();
Test t1 = new Test(h1, m1);
System.out.println("Time 2" );
System.out.print("Enter hours: " );
int h2 = keyboard.nextInt();
System.out.print("Enter mins: " );
int m2 = keyboard.nextInt();
Test t2 = new Test(h2, m2);
System.out.println(t1 + " <= " + t2 + "? " + t1.lessThan(t2));
System.out.println(t2.elapsedSince(t1) + " minutes elapsed from t1 to t2.");
}
}
}
By Barcode Scanner Add comment
February 10th, 2007 at 02:46am Under Forum
Do you feel pressure to be speedy in the ‘self check out line’? Or do you take your merry time?
Personally I try to hurry as I don’t want to take too much time, but it always seems like those bar codes just will not scan right! And then the ‘line monitor’ lady will press some button for it to scan. (cool). But she does so with an attitude, as if I work there as an item scanner. True enough there are many lines, including an ‘express’ line, but atleast act like you realize that other people are waiting on YOU to scan your 47 individual packs of crystal light lemonade! I mean atleast show some courtesy. Like if I’m buying half the store and Mr. Lonely behind me only has a box of hamburger helper and a Dawsons Creek DVD (not a solid indication of social wellbeing)….I’m gonna at least ask him if he wants to go ahead of me. Of course I don’t have to, but again that’s just ‘common courtesy’, unfortunately it isn’t that common any more. But hopefully the same guy will spare my eyes when he decides to rob Hardees at ‘BB gun-point’. Hey you never know how it pays off, but it does
Best answer:
i take my damn time screw n e one behind me im there and i feel like i dont need to hurry for the ppl behind me they should move lines
By Barcode Scanner 9 comments
January 26th, 2007 at 08:57am Under Forum
Why am I having such a hard time adding barcodes to the Key Ring app on my HTC Incredible?
I just can’t get them to scan and I can’t figure out why. Am I supposed to press something? Is the camera just being finicky?
Best answer:
Try the CardStar app, might work better for you.
By Barcode Scanner 1 comment
May 19th, 2006 at 03:27am Under Forum
It’s been a long time ago but does anybody remember?
Some years ago, I saw a toy that I really liked but I forgot its name. :S Does anybody remember the name of a toy that was like a scanner, and your mission was to search (with the toy scanner) every Upc (of the products in the store or your house) to find hidden aliens that had scattered all around the world or something? The aliens were supposedly hiding in every UPC and you had to find it…what’s the name of this toy? Does anybody remember? I’m just curious and I would like to see it again :D
Best answer:
It’s called Scannerz and you’ll find it at the links below.
Good luck!… ?
By Barcode Scanner Add comment