Chapter 7. Magnetic Slot Reader Information - IBM 3278 Series Maintenance Information

Chapter 7. Magnetic Slot Reader Information
The magnetic slot reader (MSR) and the magnetic
hand scanner (MHS) are devices used to read data
encoded on different types of magnetic striped
documents, such as adhesive labels on card stock,
tags, and plastic cards. An audio beeper and three
light indicators present feedback information to the
operator.
The MSR components are packaged in a plastic
housing which has a slot that serves as the~document
path. The MHS is a hand-held device whose com-
ponents are also packaged in a plastic housing. The
repair and maintenance of both devices is a customer
responsibility.
Neither device may read magnetic stripes accurately
if the stripes contain any of the following defects:
tears, scratches, contaminants, demagnetized areas,
wrinkles (surface irregularities), and voids.
Head element cleaning is performed by the customer
as required_ The recommended method of cleaning
is to wipe the element with a cloth wetted with
isopropyl alcohol. Refer the customer to the
Magnetic Hand Scanner - Magnetic Slot Reader
Replacement Procedures
manual, GA24-3663.
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