Service manual

G130/G131 vi SM
Uploading NVRAM Data ...................................................................5-100
Downloading NVRAM Data...............................................................5-101
5.4.6 ERROR CODE TABLE .................................................................5-102
5.5 SD CARD APPLI MOVE........................................................................5-103
5.5.1 OVERVIEW ..................................................................................5-103
5.5.2 MOVE EXEC ................................................................................5-104
5.5.3 UNDO EXEC ................................................................................5-105
5.6 CONTROLLER SELF-DIAGNOSTICS ..................................................5-106
5.6.1 OVERVIEW ..................................................................................5-106
5.6.2 DETAILED SELF-DIAGNOSTICS ................................................5-107
5.7 USER PROGRAM MODE .....................................................................5-107
To enter a User Program ..................................................................5-107
To exit a User Program.....................................................................5-107
Menu List ..........................................................................................5-108
5.8 DIP SWITCHES.....................................................................................5-109
Controller Board................................................................................5-109
BCU Board........................................................................................5-109
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
6.1.3 DRIVE LAYOUT ...............................................................................6-3
6.1.4 BOARD STRUCTURE......................................................................6-4
Overview...............................................................................................6-4
6.1.5 PRINTING PROCESS ......................................................................6-6
6.2 PROCESS CONTROL ..............................................................................6-8
6.2.1 OVERVIEW ......................................................................................6-8
6.2.2 POTENTIAL CONTROL ...................................................................6-8
Overview...............................................................................................6-8
Process Control Self Check ..................................................................6-9
6.2.3 PROCESS CONTROL SELF CHECK PROCEDURE ....................6-10
Step 1: VSG Adjustment .....................................................................6-10
Step 2: ID Sensor Solid Pattern Generation .......................................6-11
Step 3: Sensor Pattern Detection .......................................................6-11
Step 4: Toner Amount Calculation ......................................................6-11
Step 5: VD, VB, VL Selection and VREF Adjustment .........................6-12
Step 6: ID Sensor Highlight Pattern Generation .................................6-13
Step 7: Sensor Pattern Density Detection...........................................6-13
Step 8: VL (LD Power) Selection ........................................................6-13
6.2.4 VREF COMPENSATION DURING A PRINT JOB..........................6-14
Highlight Pattern .................................................................................6-14
Adjustment Process ............................................................................6-14
6.2.5 TONER SUPPLY CONTROL .........................................................6-15
Overview.............................................................................................6-15
Toner Supply Control Modes ..............................................................6-15