IBM 4693, Инструкция по установке и эксплуатации, Страница: 53 / 74

Created February 23, 1997
Cleaning the Card Reader
If you are using the card reader correctly and get
a large number of misreads, you may need to
clean the read head with an MSR cleaning card.
The cleaning card, Part Number 6019483, is
available through your IBM Marketing
Representative. The card reader should be
cleaned about every 10,000 passes. To clean the
card reader:
1
Locate the special cleaning card.
2
Hold the card horizontally with the stripe at
the bottom and facing you.
3
Pass the card through the reader several
times in either direction, using a smooth,
steady motion.
Entering Data with the Hand-Held
Bar Code Readers
To read the barcode label on an item, do the
following:
1
Holding the item in one hand, put the bar
code reader steadily over the bar code label
so that it is square with the label.
Do not
move the bar code reader from side to side.
2
Gently touch the reader to the label.
If you have used the bar code reader correctly,
some action takes place at your terminal,
depending on your application. For example, a
“beep” may sound, the display may change, or the
printer may start printing.
If the reading was not successful:
1
Check to see that the bar code label is not
blocked by debris or damaged.
2
Make sure the bar code label is
perpendicular to the reader, and not angled
sideways. The bars on the label should be
in a vertical position for successful reading.
Figure 2-26. Hand-Held Bar Code Reader
Chapter 2. Operating Point-of-Sale I/O Devices
2-19