Ricoh B003 Service Manual page 912

6.12 BY-PASS TRAY.................................................................................................6-61
6.12.1 OVERVIEW..............................................................................................6-61
6.12.2 BY-PASS TRAY OPERATION.................................................................6-62
6.12.3 BY-PASS PAPER SIZE DETECTION......................................................6-63
6.13 DUPLEX UNIT ...................................................................................................6-64
6.13.1 OVERVIEW..............................................................................................6-64
6.13.2 DUPLEX DRIVE LAYOUT .......................................................................6-65
6.13.3 DUPLEX BASIC OPERATION.................................................................6-66
LARGER THAN A4 LENGTHWISE/LT LENGTHWISE .................................6-66
UP TO A4 LENGTHWISE/LT LENGTHWISE................................................6-66
6.13.4 DUPLEX UNIT FEED IN AND EXIT MECHANISM..................................6-67
FEED-IN.........................................................................................................6-67
INVERSION AND EXIT..................................................................................6-67
6.14 IMAGE TRANSFER AND PAPER SEPARATION.............................................6-68
6.14.1 OVERVIEW..............................................................................................6-68
6.14.2 BELT DRIVE MECHANISM .....................................................................6-69
6.14.3 TRANSFER BELT UNIT CONTACT MECHANISM .................................6-69
6.14.4 IMAGE TRANSFER AND PAPER SEPARATION MECHANISM ............6-70
6.14.5 TRANSFER BELT CHARGE ...................................................................6-71
MECHANISM .................................................................................................6-71
CORRECTION FOR PAPER WIDTH AND THICKNESS ..............................6-72
CURRENTS APPLIED TO LEADING EDGE AND IMAGE AREAS, AND FOR
BY-PASS FEED .........................................................................................6-73
6.14.6 TRANSFER BELT CLEANING MECHANISM .........................................6-74
6.15 IMAGE FUSING AND PAPER EXIT..................................................................6-75
6.15.1 OVERVIEW..............................................................................................6-75
6.15.2 FUSING DRIVE........................................................................................6-76
6.15.3 FUSING DRIVE RELEASE MECHANISM ...............................................6-76
6.15.4 FUSING ENTRANCE GUIDE SHIFT MECHANISM ................................6-77
6.15.5 EXIT GUIDE PLATE AND DE-CURLER ROLLERS ................................6-77
6.15.6 PRESSURE ROLLER ..............................................................................6-78
6.15.7 CLEANING MECHANISM........................................................................6-78
6.15.8 FUSING TEMPERATURE CONTROL .....................................................6-79
TEMPERATURE CONTROL .........................................................................6-79
FUSING IDLING TEMPERATURE ................................................................6-80
6.15.9 OVERHEAT PROTECTION.....................................................................6-80
6.16 ENERGY SAVER MODES ................................................................................6-81
6.16.1 OVERVIEW..............................................................................................6-81
6.16.2 ENERGY SAVER MODE .........................................................................6-82
ENTERING THE ENERGY SAVER MODE ...................................................6-82
WHAT HAPPENS IN ENERGY SAVER MODE ............................................6-82
RETURN TO STAND-BY MODE ...................................................................6-82
6.16.3 AUTO OFF MODE ...................................................................................6-83
ENTERING OFF STAND-BY AND OFF MODES ..........................................6-83
OFF STAND-BY MODE.................................................................................6-83
OFF MODE ....................................................................................................6-83
RETURNING TO STAND-BY MODE.............................................................6-83
SPECIFICATONS
7. SPECIFICATIONS........................................................................ 7-1
7.1 GENERAL SPECIFICATIONS...................................................................7-1
7.2 MACHINE CONFIGURATION ...................................................................7-3
B003/B004/B006/B007
CÓPIA NÃO CONTROLADA
viii
CÓPIA NÃO CONTROLADA
Rev. 09/2002
SM