MagTek MICRImage CHECK READER - Manual (Page 15)

Section 2. Installation
7
Caution
Do not place the MICRImage Reader within 6 inches of a
computer monitor or power supply. These devices may cause
undesirable interference with the check reading operation.
For a single PC, install the MICRImage cables as shown in Figure 2-3.
MICRImage
12 VDC
Power
Adapter
P/N 22410302
Figure 2-3. Cabling – Single PC