Ricoh Aficio 270 - Page 770

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4. SERVICE TABLES ......................................................................4-1
4.1 PRECAUTION............................................................................................4-1
4.2 SERVICE PROGRAM MODE OVERVIEW ................................................4-1
4.2.1 HOW TO ENTER THE SP MODE.....................................................4-1
Entering Printer SP mode .....................................................................4-1
Exiting SP mode ................................................................................... 4-1
1.1.2 SP MODE TABLE ............................................................................. 4-1
SERVICE MENU ..................................................................................4-1
SERVICE TOOLS.................................................................................4-2
1.3 SERVICE MENU ........................................................................................4-2
1.3.1 BIT SWITCH PROGRAMMING.........................................................4-2
BIT SWITCHES ....................................................................................4-2
1.3.2 NVRAM RESET ................................................................................4-3
DIAG. ERROR LOG AND PAPER TRAY SETTINGS RESET ............. 4-3
CONTROLLER NVRAM RESET ..........................................................4-3
NIB NVRAM RESET.............................................................................4-3
COUNTER RESET ...............................................................................4-4
1.1.3 POWER-ON DIAGNOSTICS ERROR DISPLAY...............................4-4
1.1.4 SERVICE SUMMARY .......................................................................4-4
1.4 SERVICE TOOLS ......................................................................................4-6
1.4.1 HDD TEST ........................................................................................4-6
1.4.2 HDD FORMAT ..................................................................................4-7
1.4.3 NIB NVRAM BACKUP AND RESTORE............................................4-7
1.5 FIRMWARE UPDATE ................................................................................4-9
1.5.1 FIRMWARE DOWNLOAD (CONTROLLER, NIB AND PS3).............4-9
1.1.2 ERROR RECOVERY ......................................................................4-11
CONTROLLER ...................................................................................4-11
PS3 DIMM / NIB .................................................................................4-11
1.6 POWER-ON SELF TEST .........................................................................4-12
1.6.1 PARALLEL LOOP-BACK TEST ......................................................4-12
1.6.2 OTHER TESTS ...............................................................................4-12
5. REMOVAL AND REPLACEMENT...............................................5-1
5.1 PRECAUTIONS .........................................................................................5-1
1.2 CONTROLLER...........................................................................................5-1
1.3 NIB ............................................................................................................. 5-2
6. TROUBLESHOOTING.................................................................6-1
6.1 SC CODES................................................................................................. 6-1
6.2 ERROR CODES.........................................................................................6-1
6.3 LED DISPLAY ............................................................................................6-2
6.3.1 LOCATION ........................................................................................6-2
6.3.2 FATAL ERRORS...............................................................................6-3