Cognitive Solutions A799 Manual De Usuario

Chapter 2: Diagnostics and Configuration

14

Revision D 12/09

A799-PG00001D

The printer communicates various conditions both visually, with the green LED or audibly, with a series of tones or beeps. 
The following table lists these indicators.

LED 

Continuous, flashing quickly 

Paper out 

 

 

Cover off 

 

 

Knife unable to home 

LED 

Continuous, flashing slowly 

Paper is low 

 

 

(if paper low sensor is installed) 

 

 

Printhead too hot 

 

 

Voltages out of range 

Tone 

Two-tone beep 

Start-up diagnostics completed successfully 

 

(low frequency, high frequency) 

LED 

Single beep 

Boot CRC test failure 

and Tone 

Single LED flash

LED 

Double beep 

SRAM test failure 

and Tone 

Double LED flash

LED 

Triple beep 

EEPROM test failure 

and Tone 

Triple LED flash

LED 

Four beeps 

Dynamic memory initialization failure 

and Tone 

Four LED flash

LED 

Two-Tone beep 

Main program CRC test failure 

and Tone 

(high frequency, low frequency) 

Or 

 

Continuous flashing of LED 

DIP switch is in on position indicating 

 

 

flash download mode

The printer is also able to communicate its status to the host application if the application has been programmed to receive 
this information

Error conditions and correcting them  

“ Troubleshooting the printer” on page 30, Chapter 4:  

Using the Printer,  in the A799 User Guide

Communication of printer status to the host application 

“Command descriptions” in Chapter 4: Programming 

 

 

 

commands, Status sections.