<Li> ⑉ (dash: used to delimit parts of numbers--e.g., routing numbers or account numbers). </Li> <P> Major European countries, including France and Italy, and others like Brazil and Mexico use the CMC - 7 font, developed by Groupe Bull in 1957 . </P> <P> MICR characters are printed on documents in either of the MICR fonts . The ink used in the printing is a magnetic ink or toner, usually containing iron oxide . The MICR text is passed before a MICR reader . The ink in the plane of the paper is first magnetized . Then the characters are passed over a MICR reader head, a device similar to the playback head of a tape recorder . As each character passes over the head it produces a unique waveform that can be easily identified by the system . </P> <P> The use of MICR allows the characters to be read reliably even if they have been overprinted or obscured by other marks, such as cancellation stamps and signature . The error rate for the magnetic scanning of a typical cheque is smaller than with optical character recognition systems . For well printed MICR documents, the "can't read" rate is usually less than 1% while the substitution rate (misread rate) is in the order of 1 per 100,000 characters . </P>

Describe how micr is used to read these details from the cheque