Ricoh B064 SERIES Service Manual page 26

SDRB (Scanner Driver Board) ..............................................................6-9
VIB (Video Interface Board) ..................................................................6-9
DRB (Drive Board) ................................................................................6-9
CNB (Connection Board) ......................................................................6-9
HDD (Hard Disk Drive)........................................................................6-10
6.3 COPY PROCESS OVERVIEW................................................................6-11
6.4 ADF .........................................................................................................6-14
6.4.1 OVERVIEW ....................................................................................6-14
6.4.2 ADF DRIVE LAYOUT .....................................................................6-15
6.4.3 PICK-UP ROLLER LIFT .................................................................6-16
6.4.4 BOTTOM PLATE LIFT....................................................................6-17
6.4.5 ORIGINAL SEPARATION ..............................................................6-18
6.4.6 ORIGINAL TRANSPORT ...............................................................6-19
6.4.7 ORIGINAL SKEW CORRECTION ..................................................6-20
6.4.8 ORIGINAL SIZE DETECTION........................................................6-22
6.4.9 ADF SCANNING ............................................................................6-25
6.4.10 JAM DETECTION.........................................................................6-26
6.5 SCANNING .............................................................................................6-27
6.5.1 OVERVIEW ....................................................................................6-27
6.5.2 SCANNER DRIVE ..........................................................................6-28
6.5.3 ORIGINAL SIZE DETECTION........................................................6-29
Sensors...............................................................................................6-29
Detection Timing .................................................................................6-30
6.5.4 SCANNING MAGNIFICATION .......................................................6-31
Book Mode..........................................................................................6-31
6.5.5 AUTO IMAGE DENSITY (ADS) ......................................................6-32
Xenon Lamp → CCD ADS..................................................................6-32
CIS ADS .............................................................................................6-32
6.6 IMAGE PROCESSING ............................................................................6-33
6.6.1 OVERVIEW ....................................................................................6-33
6.6.2 IMAGE PROCESSING FLOW........................................................6-34
6.6.3 IMAGE PROCESSING MODES .....................................................6-35
6.6.4 IMAGE QUALITY SP ADJUSTMENTS...........................................6-36
Custom Settings for Each Mode: Image Quality .................................6-37
Custom Settings for Each Mode: Line Width Correction .....................6-38
Custom Setting: Duplex Scanning Mode Original Image Quality Settings.. 6-40
Settings Adjustable for Each Original Mode........................................6-41
6.6.5 RELATION BETWEEN THE SP AND UP SETTINGS....................6-42
6.6.6 IMAGE PROCESSING TROUBLESHOOTING ..............................6-44
Removing Background from Coarse Paper ........................................6-44
Improving the Appearance of a Copy of a Color Document................6-44
Removing Vertical White Lines During Duplex Scanning....................6-45
Equalizing Duplex Scanned Image Quality of Front/Back Sides.........6-46
Equalizing Image Quality of Front Sides for Duplex and Simplex Modes ...6-46
6.7 LASER EXPOSURE ...............................................................................6-47
6.7.1 OVERVIEW ....................................................................................6-47
6.7.2 OPTICAL PATH..............................................................................6-48
6.7.3 FOUR-BEAM EXPOSURE .............................................................6-49
6.7.4 COOLING FAN ...............................................................................6-50
B064 Series/B140 Series
/B246 Series/D052 Series
CÓPIA NÃO CONTROLADA
xiv
CÓPIA NÃO CONTROLADA
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