Intermec 6822 6820 Series 80-Column Printer User Manual (for printers purchase - Page 98
Understanding Fatal Errors, Flash Write Errors
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Chapter 5 - Troubleshooting and Maintaining the 6820 POST Error Codes (continued) Long Short Paper Head Low Beep Beep Out Jam Batt 1 5 On Off On 1 5 On On Off 0 0 On On On Power Meaning On Diagnostic flash memory check failed or is not initialized On Diagnostic memory write failure On Control program IPL Understanding Fatal Errors There are two types of fatal errors, flash write errors and EEPROM configuration block errors. These errors are extremely rare, but measures are built into the printer diagnostics to track possible occurrences. Flash Write Errors Errors related to writing or erasing flash are critical errors. These errors cause the printer to stop all processing and produce an LED code and a sequence of beeps. The LED code indicates the address of the segment where the error occurred in octal notation. The octal digit changes every four beeps until four octal digits are output. Only four octal digits are output since blocks are 256 bytes in size and flash can be addressed with a total of 0x7ff blocks. The segment address output is the runtime address of the flash block and not the offset of the block within flash. To obtain the block offset within the flash • Subtract 0x800 from the address output to determine the block offset. The printer suspends after the processing the error code. When the printer resumes, an error again and the printer suspends again. Reset the printer to correct the error. If a reset does not correct the error, have the printer checked by a qualified service technician. Note: Flash write errors may be unrecoverable. 82 6820 Series 80-Column Printer User Manual