This limitation is what makes brailling technical texts so difficult. The content must be painstakingly edited by editors who are familiar with the mathematical notation used. The pages are printed using a special printer called an Interpoint Braille Embosser. This machine prints the raised dots on both sides of the page. This is important because paper use is cut in half, and the already cumbersome weight of the Braille books is also cut in half.
Most blind people prefer interpoint printed Braille because the finished product is less bulky.
Agencies and individuals place orders by contacting CHPI by mail, fax, e-mail, phone, or dropping by the East Johnson Street office. Small jobs can be paid for at the conclusion of the work. For jobs over several hundred dollars, we require that the person making the order sign a transcription contract and pay half the estimated price in advance. The estimate is made by counting the number of print pages to be transcribed, determining the number of Braille pages that will result from each print page and counting the number of graphics which must be produced in tactile form. For these reasons, we generally ask the customer to send us the book, so that we can make an accurate estimate.