Epson TM-U950 Technical Manual page 95

CONFIDENTIAL
The voltage waveform output from the magnetic reading head produces a different pattern for
each individual character, and characters are recognized by their patterns.
Figure 2-65. Voltage Waveform Output From the Magnetic Reading Head
Overview of MICR board operation
The following drawing shows a simplified diagram of the functions of the MICR board.
Figure 2-66. General Operation of the MICR Board
The MICR head reading signal and CR DTC signal are output to the CR DTC OUT terminal.
Switching of these two signals is controlled by the SLIP signal as shown below.
SLIP signal
High
Low
(Note: Only the logic for High and Low is shown. These are different from the TTL levels.)
2-50 Mechanism Configuration and Operating Principles
CR DTC OUT terminal
CR DTC signal output
MICR head reading signal output
Rev. A