Overview - Ricoh B022 Service Manual

SP Mode Button Summary ...................................................................3-2
Switching Between SP Mode and Copy Mode for Test Printing ...........3-3
Selecting the Program Number.............................................................3-3
3.1.2 SERVICE PROGRAM MODE TABLES ............................................3-4
3.2 BIT SWITCHES .........................................................................................3-9
3.2.1 SYSTEM SWITCHES .......................................................................3-9
3.2.2 SCANNER SWITCHES ..................................................................3-21
3.2.3 PRINTER SWITCHES ....................................................................3-25
3.2.4 COMMUNICATION SWITCHES.....................................................3-30
3.2.5 G3 SWITCHES ...............................................................................3-39
3.2.6 G3-2 SWITCHES............................................................................3-46
3.2.7 G4 INTERNAL SWITCHES ............................................................3-52
3.2.8 G4 PARAMETER SWITCHES........................................................3-59
3.3 NCU PARAMETERS ...............................................................................3-62
3.4 DEDICATED TRANSMISSION PARAMETERS ......................................3-73
3.4.1 PROGRAMMING PROCEDURE ....................................................3-73
3.4.2 PARAMETERS ...............................................................................3-74
3.5 SERVICE RAM ADDRESSES.................................................................3-78
DETAILED SECTION DESCRIPTIONS
4 DETAILED SECTION DESCRIPTIONS ........................................ 4-1

4.1 OVERVIEW ...............................................................................................4-1

4.2 BOARDS ...................................................................................................4-2
4.2.1 FCU ..................................................................................................4-2
FACE2 (Fax Application Control Engine)..............................................4-2
FBI (FACE Bridge Interface) .................................................................4-2
Modem (R288F-29)...............................................................................4-2
DRAM ...................................................................................................4-3
Memory back-up ...................................................................................4-3
Switches ...............................................................................................4-3
4.2.2 MBU..................................................................................................4-3
ROM .....................................................................................................4-3
SRAM ...................................................................................................4-3
Memory back-up ...................................................................................4-3
Switches ...............................................................................................4-3
4.2.3 NCU (US) .........................................................................................4-4
4.2.4 NCU (EUROPE/ASIA) ......................................................................4-5
4.2.5 SG3 BOARD.....................................................................................4-6
CCP (Communication Control Processor) ............................................4-6
Flash ROM............................................................................................4-6
DRAM ...................................................................................................4-6
QM coder ..............................................................................................4-6
V.34 Modem .........................................................................................4-6
4.2.6 SIG4 BOARD....................................................................................4-7
ICCP (ISDN Communication Control Processor) ..................................4-7
CODEC.................................................................................................4-7
SM xix
Rev. 11/2002
B022/B027