Ricoh A-C2 - Page 10

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6.8.3 ID SENSOR PATTERN PRODUCTION TIMING............................6-46
6.8.4 DRUM CHARGE ROLLER CLEANING..........................................6-46
6.9 DEVELOPMENT .....................................................................................6-47
6.9.1 OVERVIEW ....................................................................................6-47
6.9.2 DRIVE MECHANISM......................................................................6-48
6.9.3 DEVELOPER MIXING....................................................................6-48
6.9.4 DEVELOPMENT BIAS ...................................................................6-49
Mechanism .........................................................................................6-49
Correction for paper width and thickness (by-pass tray only) .............6-49
6.9.5 TONER SUPPLY............................................................................6-50
Toner bottle replenishment mechanism..............................................6-50
Toner supply mechanism....................................................................6-51
Sensor Control Mode..........................................................................6-52
Image Pixel Count Mode.....................................................................6-53
6.9.6 TONER NEAR END/END DETECTION .........................................6-53
6.9.7 TONER END RECOVERY .............................................................6-54
6.9.8 TONER SUPPLY WITH ABNORMAL SENSORS ..........................6-54
DRUM CLEANING AND TONER RECYCLING..................................6-55
6.10.1 DRUM CLEANING........................................................................6-55
6.10.2 TONER RECYCLING ...................................................................6-55
6.11 PAPER FEED........................................................................................6-56
6.11.1 OVERVIEW ..................................................................................6-56
6.11.2 PAPER FEED DRIVE...................................................................6-57
6.11.3 PICK-UP AND SEPARATION ROLLER RELEASE MECHANISM6-57
6.11.4 PAPER LIFT.................................................................................6-58
6.11.5 PAPER END DETECTION ...........................................................6-59
6.11.6 PAPER REGISTRATION..............................................................6-59
6.11.7 PAPER SIZE DETECTION...........................................................6-60
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