Intermec 6822 6820 Series 80-Column Printer User Manual (for printers purchase - Page 108
Diagnostic Information
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Chapter 5 - Troubleshooting and Maintaining the 6820 Diagnostic information is updated and maintained by the printer. All diagnostic information is shadowed in RAM. At the end of every 50 forms, the flash information is updated from the RAM. The printer also updates the diagnostic information for nonrecoverable error, printer resets, printer self-test, and remote polling of diagnostic information. Fields are stored with ID first, then length, then data. The details of the data and the length of the entire field, including ID and Length bytes, are shown in the Diagnostic Information table. The amount of flash memory reserved for nonvolatile diagnostic memory is 16 K bytes. Printer self-test prints most of the information contained in the diagnostic memory for remote and end-user diagnostic access. Diagnostic Information Field Id Length Description Stored as Total Length 01 4 3 7 7 7 7 2 08 8 1 Serial Number 7 digit BCD set at MFG 39 bytes Date of Manufacture, yy/mm/dd 6 digit BCD set at MFG Hardware Configuration ddd-ddd-ddd/ddd (top level P/N) ddd-ddd-ddd/ddd (control board) ddd-ddd-ddd/ddd (power supply) ddd-ddd-ddd/ddd (I/O board) 52 digit BCD set at MFG CRC of preceding fields 2 byte binary set at MFG Hardware Revisions: ECNs. applied. 64 8 byte bit field ECNs can record separately by number 164. 11 bytes Service Repairs: a two-digit field indicating 2 BCD digits number of times serviced 3 09 2 2 2 10 2 Date of last repair, yy/mm/dd 6 BCD digits Cold starts since MFG or last repair binary digits Warm starts since last cold start binary digits Pages printed over life binary digits Last high and low voltage extremes on 24 V 2 bytes input over last 50 reports. Extremes stored as 8-bit A2D conversions 8 bytes 11 bytes 92 6820 Series 80-Column Printer User Manual