Ricoh C252 Service Manual page 15

SERVICE TABLES
5. SERVICE TABLES....................................................................... 5-1
5.1 SERVICE PROGRAM MODE....................................................................5-1
5.1.1 SERVICE PROGRAM MODE OPERATION.....................................5-1
5.1.2 MAIN MENU NO.1: INPUT MODE ...................................................5-2
5.1.3 MAIN MENU NO.2: OUTPUT MODE ...............................................5-3
5.1.4 SP2-41: THERMAL HEAD SIGNAL OUTPUT (VHD SIGNAL).........5-3
5.1.5 MAIN MENU NO.3: TEST MODE .....................................................5-4
5.1.6 SP3-1: FIRMWARE SUFFIX INFORMATION ..................................5-4
5.1.7 MAIN MENU NO.6: ADJUSTMENT MODE ......................................5-4
5.1.8 SP6-42: IMAGE ADJUSTMENT PATTERN PRINT..........................5-5
5.2 DIP SWITCHES.........................................................................................5-6
5.2.1 OVERVIEW ......................................................................................5-6
5.2.2 DIPSW101 NO.1 TO 4 - PAPER REGISTRATION POSITION
ADJUSTMENT .................................................................................5-7
5.2.3 DIPSW101 NO.5 TO 8 - MASTER WRITING POSITION
ADJUSTMENT .................................................................................5-8
5.2.4 DIPSW102 NO.1 TO 3 - THERMAL HEAD ENERGY CONTROL ..5-9
5.2.5 DIPSW103 NO.1 TO 4 - SCANNING SPEED ADJUSTMENT.......5-10
5.2.6 DIPSW103 NO.5 TO 8 - MASTER FEEDING SPEED
ADJUSTMENT ...............................................................................5-11
DETAILED DESCRIPTIONS
6. DETAILD SECTION DESCRIPTIONS ......................................... 6-1
6.1 MECHANISM OVERVIEW ........................................................................6-1
6.1.1 MAJOR PARTS ................................................................................6-1
6.1.2 ELECTRICAL COMPONENT LAYOUT ............................................6-2
6.1.3 DRIVE LAYOUT ...............................................................................6-5
6.2 MASTER EJECT UNIT ..............................................................................6-6
6.2.1 OVERVIEW ......................................................................................6-6
6.2.2 MASTER CLAMPER OPENING MECHANISM ................................6-7
6.2.3 MASTER EJECT ROLLER MECHANISM ........................................6-8
6.2.4 PRESSURE PLATE MECHANISM...................................................6-9
6.3 SCANNER UNIT......................................................................................6-10
6.3.1 SCANNER DRIVE ..........................................................................6-10
6.4 IMAGE PROCESSING ............................................................................6-11
6.4.1 IMAGE PROCESSING FLOW........................................................6-11
6.5 MASTER FEED .......................................................................................6-12
6.5.1 OVERVIEW ....................................................................................6-12
6.5.2 MASTER FEED MECHANISM .......................................................6-13
6.5.3 CLAMPER AND TENSION ROLLER MECHANISM.......................6-14
6.5.4 CUTTER MECHANISM ..................................................................6-15
6.5.5 MASTER SET COVER SENSOR ...................................................6-16
6.6 DRUM......................................................................................................6-17
6.6.1 OVERVIEW ....................................................................................6-17
SM iii C252