Ricoh B089 Service Manual page 19

6.8.2 SCANNING.....................................................................................6-40
6.8.3 ADF IMAGE ADJUSTMENT...........................................................6-42
6.8.4 TOUCH SCREEN CALIBRATION ..................................................6-43
6.9 IDENTIFYING SKEWED, TRAPEZOID AND
PARALLELOGRAM IMAGES ................................................................. 6-44
6.9.1 SKEWED IMAGES .........................................................................6-44
6.9.2 TRAPEZOID IMAGES ....................................................................6-44
6.9.3 PARALLELOGRAM IMAGES .........................................................6-45
6.10 CHECKING THE IMAGE WITH THE TRIMMING PATTERN ................6-46
6.11 CORRECTING THE IMAGES ...............................................................6-47
6.11.1 CORRECTING SKEWED IMAGES ..............................................6-47
6.11.2 CORRECTING TRAPEZOID IMAGES .........................................6-50
TOUBLESHOOTING
7. TROUBLESHOOTING ................................................................. 7-1
7.1 SERVICE CALL CONDITIONS .................................................................7-1
7.1.1 SUMMARY .......................................................................................7-1
7.1.2 SC CODE DESCRIPTIONS .............................................................7-2
7.2 SELF-DIAGNOSTIC MODE ....................................................................7-16
7.2.1 SELF-DIAGNOSTIC MODE AT POWER ON .................................7-16
7.2.2 DETAILED SELF-DIAGNOSTIC MODE .........................................7-17
Executing Detailed Self-Diagnosis ......................................................7-17
7.3 PAPER FEED TROUBLESHOOTING.....................................................7-19
7.4 SKEWED IMAGE ....................................................................................7-20
7.5 ELECTRICAL COMPONENT DEFECTS ................................................7-21
7.5.1 SENSORS ......................................................................................7-21
7.5.2 SWITCHES.....................................................................................7-23
7.6 BLOWN FUSE CONDITIONS .................................................................7-24
PAPER TRAY UNIT (A860/B390)
1. OVERALL MACHINE INFORMATION......................................... 8-1
1.1 SPECIFICATIONS.....................................................................................8-1
1.2 MECHANICAL COMPONENT LAYOUT ...................................................8-2
1.3 ELECTRICAL COMPONENT LAYOUT.....................................................8-3
1.4 ELECTRICAL COMPONENT DESCRIPTION...........................................8-4
1.5 DRIVE LAYOUT ........................................................................................8-5
2. DETAILED DESCRIPTIONS ........................................................ 8-6
2.1 PAPER FEED AND SEPARATION MECHANISM ....................................8-6
2.2 PAPER LIFT MECHANISM .......................................................................8-7
2.3 PAPER END DETECTION ........................................................................8-9
2.4 PAPER HEIGHT DETECTION ................................................................8-10
2.5 PAPER SIZE DETECTION......................................................................8-12
SM vii B089/B093