Gestetner B147 Service Manual page 990

5.6.1 BEFORE YOU BEGIN... ..............................................................5-140
5.6.2 UPDATING FIRMWARE...............................................................5-140
5.6.3 VERIFYING A SUCCESSFUL UPDATE ......................................5-147
5.6.4 UPDATING THE LCDC FOR THE OPERATION PANEL.............5-150
5.6.5 DOWNLOADING STAMP DATA ..................................................5-151
5.6.6 NVRAM DATA UPLOAD/DOWNLOAD ........................................5-152
Uploading Content of NVRAM to an SD card ...................................5-152
Downloading an SD Card to NVRAM................................................5-152
5.6.7 INSTALLING ANOTHER LANGUAGE .........................................5-153
5.6.8 HANDLING FIRMWARE UPDATE ERRORS ...............................5-156
5.7 SD CARD APPLI MOVE........................................................................5-157
5.7.1 OVERVIEW ..................................................................................5-157
5.7.2 MOVE EXEC ................................................................................5-158
5.7.3 UNDO EXEC ................................................................................5-159
5.8 CONTROLLER SELF-DIAGNOSTICS ..................................................5-160
5.8.1 OVERVIEW ..................................................................................5-160
5.8.2 DETAILED SELF-DIAGNOSTICS ................................................5-161
5.9 USER PROGRAM MODE .....................................................................5-162
5.9.1 MENU ...........................................................................................5-162
5.9.2 DISPLAY ......................................................................................5-166
Selecting Menu .................................................................................5-166
Inquiry ...............................................................................................5-166
5.10 DIP SWITCHES...................................................................................5-167
Controller Board................................................................................5-167
BCU Board........................................................................................5-167
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
Descriptions ..........................................................................................6-5
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
SM vii
Rev. 06/2004
B147/B149