Ricoh MT-C1 Service Manual page 19

6.9.9 TONER BOTTLE SUPPLY AND VENTILATION ............................6-73
6.9.10 TONER SUPPLY CONTROL .......................................................6-74
Sensor Control Mode ..........................................................................6-74
Pixel Count Toner Supply Mode .........................................................6-75
TD Sensor Initialization .......................................................................6-76
Determining Vref .................................................................................6-76
Toner Supply without ID Sensor and TD Sensors ..............................6-77
Abnormal TD Sensor Output...............................................................6-77
Abnormal ID Sensor Output................................................................6-77
Toner End Detection ...........................................................................6-78
Toner End Recovery ...........................................................................6-78
6.10 IMAGE TRANSFER AND PAPER SEPARATION .................................6-79
6.10.1 OVERVIEW ..................................................................................6-79
6.10.2 TRANSFER BELT LIFT ................................................................6-80
Mechanism .........................................................................................6-80
Timing .................................................................................................6-81
6.10.3 TRANSFER BELT CHARGE ........................................................6-82
6.10.4 TRANSFER CURRENT SETTINGS .............................................6-83
6.10.5 TRANSFER CURRENT CIRCUIT ................................................6-84
6.10.6 TRANSFER BELT DRIVE AND PAPER TRANSPORT................6-85
6.10.7 TRANSFER BELT CLEANING .....................................................6-86
6.10.8 ANTI-CONDENSATION HEATER ................................................6-87
6.11 PAPER FEED........................................................................................6-88
6.11.1 OVERVIEW ..................................................................................6-88
Tray Capacities...................................................................................6-89
Built-in Feed Stations..........................................................................6-89
By-pass Feed......................................................................................6-89
Paper Registration ..............................................................................6-89
Jam Removal......................................................................................6-89
6.11.2 DRIVE...........................................................................................6-90
6.11.3 TRAY AND PAPER LIFT MECHANISM - TRAY 2,3....................6-91
Bottom Plate Lift .................................................................................6-91
Lift Sensor...........................................................................................6-92
6.11.4 PAPER FEED AND SEPARATION MECHANISM........................6-93
Paper Feed and Separation: No Paper Present .................................6-93
Paper Feed and Separation................................................................6-94
Separation Roller Release Mechanism...............................................6-95
6.11.5 PAPER NEAR-END AND PAPER END - TRAYS 2 AND 3 .........6-96
6.11.6 PAPER SIZE DETECTION...........................................................6-97
Tandem Tray (Tray 1) .........................................................................6-97
Universal Cassettes (Tray 2, 3) ..........................................................6-97
6.11.7 ANTI-CONDENSATION HEATERS..............................................6-98
6.11.8 TANDEM TRAY - TRAY 1 ...........................................................6-99
Overview.............................................................................................6-99
Connecting the Left and Right Sides of the Tray ..............................6-100
Paper Lift/Remaining Paper Detection..............................................6-101
Fence Drive ......................................................................................6-103
Rear Fence Drive..............................................................................6-104
Tray Side-to-side Positioning ............................................................6-105
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