User manual KONICA MINOLTA FS-105 FS105 SERVICE MANUAL

[. . . ] SERVICE MANUAL MODEL FS-105 JUNE 1998 CSM-FS105 CONTENTS TABLE OF CONTENTS SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v DIAGRAMS ELECTRICAL PARTS LAYOUT DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . 28 CONNECTOR LAYOUT DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 FS-105 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] When the conveyance drum reaches the standby position, the motor is switched OFF. During this time, the drum makes one revolution which includes gripping, conveying, and releasing the paper. M807 speed control When the conveyance drum rotation pulses reach a predetermined number, the rotation speed is changed. 14 FS-105 Tray Up/Down (M804) Control Tray squeeze prevention During tray upward or downward movement, if a foreign object is caught between the tray and the finisher unit, MS802 (up/ down (upper)) or MS803 (up/down (lower)) will mechanically go OFF, causing the power supply line of M804 to be cut off. Signals Input signals PS805 (PS805 FS CB) Tray 2 upper limit detection signal. [L]: Upper limit is detected [H]: Upper limit is not detected PS806 (PS806 FS CB) Tray 3 lower limit detection signal. [L]: Lower limit is detected [H]: Lower limit is not detected MS802/MS803 (MS802/MS803 FS CB) Power supply line for M804. Forcibly interrupted when a foreign object is caught between tray and finisher unit. FS RXD (MAIN BODY FS CB) Serial data line for transmitting operation status information from control board in main body to finisher. FS R REQ (MAIN BODY FS CB) Send request signal from main body to finisher. FS T ACK (MAIN BODY FS CB) Send enable signal from main body to finisher. The paper exit position of the conveyance drum is always fixed, and tray switching is carried out by raising or lowering tray 2/3. The up/down motion is achieved by transmitting the driving force of motor M804 (tray up/down) to the lift wires connected to each tray. This operation is controlled by the FS CB (FS control board). Output signals M804 DRIVE 1, 2 (FS CB M804) M804 drive signals. M804 rotation direction is controlled by switching the current direction of these two signals. State Upward movement Downward movement Stop M804 DRIVE 1 H L H M804 DRIVE 2 L H H Operation Normally, the paper exit position of the conveyance drum is aligned with tray 2. Therefore no lift operation is carried out when tray 2 is selected. Upward movement When tray 3 is selected as paper exit tray and PS806 (tray lower limit detect) is ON, M804 goes ON (forward rotation). Tray 2 and tray 3 are then raised simultaneously. When the upward movement causes tray 2 to switch PS805 (tray upper limit detect) to ON, M804 goes OFF and the upward movement stops. Tray 3 is now aligned with the paper exit position of the conveyance drum. Downward movement When tray 2 is selected as paper exit tray and PS805 is ON, M804 goes ON (reverse rotation). Tray 2 and tray 3 are then lowered simultaneously. [. . . ] [L]: No-staple condition is detected [H]: No-staple condition is not detected M802 M802 M802 Stapling is carried out by driving M802 (stapler (front)) and M803 (stapler (rear)). Operation of M802 and M803 is controlled by the FS CB (FS control board). The maximum number of sheets for stapling and the operation to be carried out when the number is exceeded can be set with 25 mode of the main body. For details, refer to the adjustment section of the main body Operation Stapling operation M802 goes ON when the last paper alignment operation is completed, and goes OFF when PS817 (stapler HP (front)) goes ON. [. . . ]