Bar Code FAQ Printing & Reading Barcode UPC-EAN Barcode Code 39 Barcode Code 128 Barcode UCC-128, EAN-128, GS1-128 I 2 of 5 Barcode 2D Barcodes Other Bar Code Types

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Frequently Asked Questions About Barcode
(Please visit our Questionnaire Page to tell us about your interest in barcode.)

• What is a barcode? How does a barcode work? How are barcodes printed? How are barcodes read? etc.
• Is there a glossary of barcode terms?
• How do I get a bar code number for my product?
• When do I need to put a bar code on my products?
• What is GS1, GS1-US, etc.?
• Do I have to join and pay GS1-US (in the USA) even if I just have one product to sell?
• Do I have to join and pay GS1 for internal uses like inventory or other non-retail uses?
• A company is offering to sell me a single product number. Is this legitimate?
• If I change the size or formula of my product, do I need to change the barcode?
• How do I get a list of all the product codes and their respective manufacturers?
• Does the barcode number indicate the country of origin of a product?
• My product has an EAN barcode. Do I need a UPC barcode to sell in the USA?
• My product has a UPC barcode. Do I need an EAN barcode to sell outside the USA?
• Does the barcode number contain the product price, age, or store it was purchased from?
• How do I bar code books, magazines, CDs, and DVDs?
• Who invented barcode? What was the first bar coded product? Where was barcode first used?
• Can barcodes be read upside down?
• Can barcodes be printed in color or on a colored background?
• Can I reduce the size of a UPC/EAN barcode to fit a smaller space?
• How can I identify what type of barcode is being used? Can you identify a barcode for me?
• What are the advantages and disadvantages of barcode?
• Where can I find market research or statistics on cost savings, labor saving, accuracy, etc. for barcode systems?
• Won't RFID tags make barcodes obsolete?
• What barcode will let me store the most information in the smallest space?
• How small can I make a Code 39 or Code 128 barcode?
• What are the codes that look like a grid of hexagons or squares? What are 2-D barcodes?
• Where can I get the specification for a particular barcode?
• How do I print a space, carriage return, tab or function key using barcode?
• How can I keep a barcode from being copied?
• Can barcodes be used with Word, Access, Excel, or Clipper for scanning and printing?
• Can Quicken or Quickbooks be used with barcode?
• How do I calculate the Mod 10 check digit or the necessary check digit for a given code?
• Can barcodes be used in a web environment?
• Can I use a Palm Pilot, iPAQ or other PDA to scan bar codes?
• Where can I find parts to build a barcode scanner?
• What is the least expensive barcode scanner and where can I find it?
• Can I Read A Barcode Image Off An LCD Or CRT Screen?
• How Can I Use The CueCat barcode reader to read barcodes?
• Is there a glossary of bar code terms?
• If the scanner charges me the wrong price, doesn't the law say I get the item free?
• Is there an artistic aspect to barcode?
• I want to have a barcode tattoo of my name, birthday, etc. What should the barcode look like?
• Is there a hidden 666 in barcodes?

Still can't find an answer to your question? First, take a second look at the questions to be sure your question is not already answered. At least 80% of the email I receive asks questions that are part of the FAQ. If you still can't find an answer, you can send me an e-mail. You must use the subject "Barcode Question" or it will not make it through my spam filter. I am willing to answer questions for free, but I don't design systems or write programs at this time. If your question relates to a patent matter (like you are being sued for infringement), I do consulting for a fee. Please see my bio for details.