2-26 Xerox Internal Use Only Phaser 3010/3040/WorkCentre 3045 ServiceError TroubleshootingDiagnostic Test SummaryThe following table lists diagnostic tests available, the expected results, and a briefdescription of each test. If a test fails and displays an error code, use thetroubleshooting procedure specific to the error. If the test indicates componentfailure, replace the failed component using the procedures in Chapter 4. If testresults are inconclusive, isolate the problem.CautionDo not turn the printer Off during ESS Diag testing.Test Control Panel Test DescriptionESS DiagFlashROM Test ■ CHECK OK■ CodeROM ERRORThe ROM checksum is calculated, andcompared to the value stored in thecorresponding chip beforehand.DRAM Test ■ CHECK OK■ DRAM ERRORAddr:0xCCCCCCCC0xAA -> OxBBThis test performs read/write/verify ofDRAM.MAC+PHY Test ■ Start■ Processing■ Check OK or NGPHY internal loopback test.To create a loopback plug, cross pin 1(TX+) and pin 3 (RX+) together, andcross pin 2 (TX-) and pin 6 (RX-)together.IOT Test ■ CHECK OK■ IOT ERRORThis test checks communication withthe printer.Light Flash R/WTest■ CHECK OK■ FLASH ERRORAddr:0xcccccccc0xAA > 0xBBThis tests Flash Memory . The memoryis backed up before the test, andrestored after the test. 0x55 and 0xAAis the test data pattern.Caution: If the power goes out whilethis test is running, the restoredata is lost. Only use this testif the printer is connected to aUPS.USB Test 1 ■ USB HOST 1CHECK OK■ USB HOST 1CHECK ERRORThis test checks communication with aUSB device.USB Test 2 ■ USB HOST 2CHECK OK■ USB HOST 2CHECK ERRORThis test checks whether Wi-Fi dongleenumeration passes.OP Panel Test H-BarV-BarCheckerBlackWhiteThe Control Panel Test includes LCD,LED, and Key test.Fax Card Test ■ CHECK OK■ FAX CARD ERRORThis test checks communication withthe FAX Board.Lamp Test ■ Lamp-On■ Lamp-OffThis test checks the lamp on thescanner carriage.Scanner Test 1 ■ Carriage Motor-On■ Carriage Motor-OffThis test checks the motor system forscanner carriage movement.
