Ricoh G092 Service Manual page 16

5.3.1 SERVICE MODE TABLE ("2. ENGINE") ..............................................5-10
SP1-XXX (Feed) ...........................................................................................5-10
SP2-XXX (Drum)...........................................................................................5-12
SP5-XXX (Mode) ..........................................................................................5-14
SP7-XXX (Data Log) ....................................................................................5-20
5.3.2 INPUT CHECK TABLE............................................................................5-24
Table 1: Paper Size Switch.........................................................................5-26
5.3.3 OUTPUT CHECK TABLE .......................................................................5-26
5.4 FIRMWARE UPDATE PROCEDURE.............................................................5-28
5.4.1 TYPE OF FIRMWARE ............................................................................5-28
5.4.2 ERROR RECOVERY ..............................................................................5-28
Engine Firmware ...........................................................................................5-28
Controller System Firmware: ......................................................................5-28
5.4.3 CONTROLLER/ENGINE FIRMWARE UPGRADE.............................5-29
Engine Firmware ...........................................................................................5-29
Controller System Firmware........................................................................5-30
5.5 POWER ON SELF-TEST .................................................................................5-32
5.5.1 CONTROLLER SELF-DIAGNOSTIC ....................................................5-32
Overview ........................................................................................................5-32
Detailed self-diagnostics..............................................................................5-33
5.5.2 ENGINE SELF-DIAGNOSTIC ................................................................5-33
5.6 USER PROGRAM MODE ................................................................................5-34
5.7 DIP SWITCHES .................................................................................................5-35
Controller Board ............................................................................................5-35
DETAILED DESCRIPTIONS
6. DETAILED SECTION DESCRIPTIONS .........................................6-1
6.1 OVERVIEW...........................................................................................................6-1
6.1.1 COMPONENT LAYOUT ...........................................................................6-1
6.1.2 PAPER PATH .............................................................................................6-2
6.2 DRIVE MECHANISM...........................................................................................6-3
6.2.1 GENERAL DESCRIPTION.......................................................................6-3
6.2.2 BK MOTOR DRIVE....................................................................................6-4
6.2.3 CMY MOTOR DRIVE ................................................................................6-5
6.2.4 BOARD STRUCTURE ..............................................................................6-6
Overview ..........................................................................................................6-6
Descriptions .....................................................................................................6-7
6.3 PRINT PROCESS................................................................................................6-8
6.3.1 OVERVIEW .................................................................................................6-8
6.3.2 CHARGE ...................................................................................................6-10
6.3.3 LASER EXPOSURE ................................................................................6-11
Laser scanning ..............................................................................................6-11
Polygon motor and laser exposure ............................................................6-12
6.3.4 TONER SUPPLY......................................................................................6-13
Toner cartridge ..............................................................................................6-13
Paddle shaft switching mechanism............................................................6-14
Toner cartridge and toner end detection...................................................6-15
G081/G092 iv SM