NCR 74 OFX (7874), User Manual

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1-12 Chapter 1: Product Information
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Spinner Motor
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Scale Board
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Laser Diodes
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FPGA
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Scale Hardware
If Scan Doctor finds a problem hindering proper operation of the RealScan 74, it
disables the unit; otherwise the problem is identified and operation continues.
Ongoing Wellness Check
Scan Doctor runs all the time, from the moment the RealScan 74 is turned on. It
constantly monitors RAM, the Spinner Motor, Laser Diodes and Scale Hardware.
Service Diagnostics
Scan Doctor includes service diagnostics for the trained service technician. These go
beyond the wellness checks and are accessed through the use of special programming
tags. Refer to Appendix B for more information on the Scanner Service Diagnostics
Tests.
Soft Power Down/Power Up
The RealScan 74 senses periods of scanner inactivity. The scanner ʹ s soft power down
feature extends the life of the RealScan 74 by disabling major portions of the unit,
including the laser diodes, spinner motor, and associated electronics. The length of
the inactive period prior to the soft power down is user ‐ selected and programmed
remotely or through tags.
Scanner power up occurs when the RealScan 74 motion detector detects movement.
This detector is located on the operator display panel, to the right of the vertical scan
window. The RealScan 74 can also be powered up with the checker signs on the host
terminal. This capability assumes appropriate host terminal software.
The RealScan 74 can also be powered up/down by the host application when cashier
signs in/out using RS232 communications.