Xerox DocuMate 252, Руководство по обслуживанию

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4.1.2 Offline diagnostics
To run the offline diagnostics, and turn the power back on. When you first turn the
scanner back on, the READY light will blink, indicating that the diagnostics are in
progress. Observe the front panel Error LED closely. In a short time, the Error LED
indicates the results of the offline diagnostics as explained in the table below.
Ready LED
(Green)
Error LED (RED) Error Indication
ON (No blinking) OFF OK (Ready)
OFF 1 Face down SDRAM failure
OFF 2 Face up DRAM failure
OFF 3 CPU DRAM failure
OFF 4 Face down DC offset adjust
failure
OFF 5 Face up DC offset adjust failure
OFF 6 Cover open error
OFF 7 Face down light check failure
OFF 8 Face up light check failure
OFF 9 Paper jam
OFF 0 USB disconnect
Table 4.2 Offline diagnostics results
For SRAM & DRAM error, refer to Main Control PCBA Replacement in Chapter 5. For the
Group 2 error, see the flowchart in the following section.
To return the scanner to online operation, turn off the scanner, turn the scanner back on.
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