Printer Control Codes
PcOS Series 90PLUS
Programmer's Guide
MICR Reader
Page 72
Rev M
12/16/99
5.12
MICR Reader
5.12.1
Overview
The MICR reader is an option on the Series 90PLUS Printer. It is attached to the front of the printer and
allows a document having MICR data on it to be read and positioned for print.
MICR is an acronym for Magnetic Ink Character Recognition. A MICR reader's function is to read the
information printed on the bottom of a check and transmit that information to the host. The line of
information at the bottom of a check is called MICR because it is printed in magnetic ink. The magnetic
ink contains iron particles, which may be read using MICR technologies.
Check readers are able to recognize the characters using either Optical Character Recognition (OCR) or
magnetic reading technology. Some check readers intended for retail point-of-sale use OCR techniques to
read the MICR information. Because an OCR check reader can be defrauded using a pen or pencil, the
technique has been rejected by the market.
The MICR reader only recognizes magnetic ink. It is not an optical reader. The Series 90PLUS MICR
reader is based on a technique which uses a magnetic read head to pick up a signal from a document
containing magnetic ink. The Series 90PLUS MICR reader recognizes E13-B characters. It does not read
CMC-7 characters. (CMC-7 is used in Latin America and Europe).
For a complete description of the MICR reader’s operation and programming, refer to the
PcOS Series
90PLUS MICR Programmer’s Guide
.
The following is a brief list of MICR commands. These commands are not valid unless a MICR reader is
attached.
Note: The MICR reader is not supported in EPSON mode.
Function
MICR reader reset
ASCII
[ESC] mI
Hexadecimal
1BH 6DH 49H
Decimal
<27> <109> <73>
IPCL
&%MQ
Return
[ETB] <l> Status
Description
The [ESC] mI command resets the MICR reader to the initial state. It returns
status as a result. The status is always 0 unless the reader is defective.
Summary of Contents for PcOS series 90plus
Page 1: ...P OS c SERIES 90PLUS Receipt Validation Journal Printers PROGRAMMER S GUIDE Rev M PN 100 7586 ...
Page 2: ......
Page 6: ...PcOS Series 90PLUS Programmer s Guide Page iv Rev M 12 16 99 ...
Page 139: ...Programmer s Guide PcOS Series 90PLUS Product Self Tests 12 16 99 Rev M Page 127 73 Italian ...
Page 179: ......
Page 180: ...INSERT PN 100 7307 Rev M 12 16 99 ...