Motor
No. | Name | Description |
|---|---|---|
M1 | Feed Motor | Drives the paper feed roller in the feed mechanism. |
M2 | Lift Motor | Raises and lowers the bottom plate below the paper stack. |
M3 | Relay Motor | Drives the relay rollers that feed the paper from the bypass tray into the feed path of the LCT below. |
M4 | Transport Motor | Drives the transport roller of the bypass tray that pulls the paper out of the tray and sends it to the relay roller. |
M5 | Motor Fan | Mounted below the transport motor, cools the area below the feed motor and transport motor. |
PCB
No. | Name | Description |
|---|---|---|
PCB1 | Bypass Unit Control Board | Controls operation of all bypass unit electrical components. |
Sensors
No. | Name | Description |
|---|---|---|
S1 | Lift Sensor | Detects when the paper in the bypass tray is at the proper height for paper feed. |
S2 | Tray Lower Limit Sensor | Detects when the tray is at its lowest possible position. |
S3 | Paper End Sensor | Informs the copier when the paper in the bypass tray has run out. |
S4 | Paper Feed Sensor | Detects the copy paper coming to the 4th paper feed roller and checks for misfeeds. |
S5 | Paper Height Sensor 1 | Paper end sensor. The paper height sensor pair (1 and 2) work together to monitor the height of the paper stack in the bypass tray. |
S6 | Paper Height Sensor 2 | Paper near end sensor. The paper height sensor pair (1 and 2) work together to monitor the height of the paper stack in the bypass tray. |
S7 | Paper Length Sensor | Used with the paper width switch to determine paper size. This sensor is activated when paper is set for short edge feed. For example, when the paper width switch detects A4 width and this sensor is off, the machine determines A4 is set for long edge feed. When A4 width is detected and the paper length sensor is on, then the machine determines that A3 is loaded for short edge feed. |
S8 | Relay Sensor | Detects jams in the paper path after paper is fed from the feed roller. |
Solenoids
No. | Name | Description |
|---|---|---|
SOL1 | Pick-up Solenoid | Controls up-down movement of the pick-up roller in the bypass tray. |
Switches
No. | Name | Description |
|---|---|---|
SW1 | Tray Lift Switch | Switches the tray lift motor on and off to raise and lower the bottom plate of the tray to the feed position. This switch must be pressed to start paper feed. |
SW2 | Paper Width Switch | A slide switch connected to the side fences. When the side fences are moved to match the paper width, five feelers inside the paper size switch slide along wiring patterns of a terminal plate. The wire pattern detected determines the paper width. |