Xerox WorkCentre Pro 423 Service Manual page 33

Contents
2.1 Preface....................................................................................................................2
2.2 Level 1 Troubleshooting ..........................................................................................3
2.3 Level 2 Troubleshooting ..........................................................................................4
2.3.1 Status Code Lists ....................................................................................................4
2.3.1.1 Types of Status Code..............................................................................................4
2.3.1.2 A List of IIT/IOT Status Codes.................................................................................4
2.3.1.3 ESS/Fax Status Codes..........................................................................................11
2.3.1.4 V Code List............................................................................................................11
2.3.1.5 K Code List............................................................................................................24
2.3.1.6 D Code List ...........................................................................................................32
2.3.1.7 Corrective Action for X Codes ...............................................................................34
2.3.1.8 Corrective Action for X Codes Flow Chart.............................................................34
2.3.1.9 Activity Report in User Mode.................................................................................35
2.3.1.10 Activity report in Diag C/E Mode ...........................................................................35
2.3.1.11 Protocol Monitor ....................................................................................................36
2.3.1.12 X Codes List..........................................................................................................46
2.3.1.13 Printer/ESS Codes List..........................................................................................55
2.3.1.14 Internal Codes List ................................................................................................67
2.3.2 Troubleshooting in ISDN Communication .............................................................75
2.3.2.1 ISDN Line Basic Troubleshooting Flow .................................................................76
2.3.2.2 ISDN Basic Sequences .........................................................................................78
2.3.2.3 G4 Fax Protocol Monitor .......................................................................................82
2.3.2.4 D Channel Troubleshooting...................................................................................85
2.3.2.5 B Channel Troubleshooting...................................................................................93
2.3.2.6 ISDN Fax Installation Notes ................................................................................101
2.3.2.7 Explanation of Common Terms...........................................................................101
2.3.2.8 Installation Notes.................................................................................................103
2.3.2.9 Cases of Parameter Setting Error or Mismatch...................................................105
2.3.3 Super G3 Fax......................................................................................................106
2.3.3.1 Super G3 Fax Introduction ..................................................................................106
2.3.3.2 V.8 CM/JM Signal ...............................................................................................107
2.3.3.3 V.8 Operation for Auto Transmission ..................................................................108
2.3.3.4 V.8 Operation for Manual Transmission ..............................................................108
2.3.3.5 Troubleshooting of Super G3 Fax .......................................................................109
WorkCentre Pro 423/428
2.3.4 IIt/IOT Status Code FIP ...................................................................................... 110
2.3.5 Other Fault FIP ................................................................................................... 131
2.3.6 General Purpose FIP.......................................................................................... 137
2.4 How to Use the Diagnostic (C/E) Mode .............................................................. 140
2.4.1 Entering the Diagnostic (C/E Mode) ................................................................... 140
2.4.2 Exiting the Diagnostic (C/E Mode)...................................................................... 140
2.4.3 Entering the Chain Function ............................................................................... 140
2.4.4 Changing the Chain Function ............................................................................. 140
2.4.5 Memory Read/Write............................................................................................ 140
2.4.6 Memory Clear..................................................................................................... 140
2.4.7 ASCII Code ........................................................................................................ 141
2.4.8 Self-Diagnosis .................................................................................................... 142
2.4.9 Chain Function Codes ........................................................................................ 147
2.4.9.1 Output Check Chain Function Code List ............................................................ 147
2.4.9.2 Input Check Chain Function Code List ............................................................... 149
2.4.9.3 NVM Settings...................................................................................................... 150
2.4.9.4 Test Print ............................................................................................................ 156
2.4.9.5 Billing/EPSV ....................................................................................................... 158
2.4.9.6 Custom Presets .................................................................................................. 160
2.4.9.7 HFSI Counter/CRUM.......................................................................................... 168
2.4.9.8 Fault History/Counter.......................................................................................... 169
2.4.9.9 Mode Set ............................................................................................................ 171
2.4.9.10 Automatic Diagnostic.......................................................................................... 178
2.4.9.11 Signal Send test ................................................................................................. 180
2.4.9.12 Fax System Data ................................................................................................ 184
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Contents
CHAPTER 2 TROUBLESHOOTING
1