Bypass Tray Unit Open/Close
The bypass tray unit can be opened by pushing down the bypass release lever [A]. This mechanism prevents the jammed paper from tearing into pieces when removing the paper.
Paper Feed/Transport Drive
Feed and separation in the bypass tray are controlled by two motors. The bypass feed motor [A] drives bypass pick-up roller [B] and the bypass feed roller [C]. The relay motor [D] drives the bypass separation roller and the relay roller.
Pick-up/Feed
The FRR method is the paper separation method in this machine.
Only for MP C6503/C8003, the bypass pick-up roller [A] has a stopper [D]. The bypass pick-up roller [A] is shifted up/down by the bypass pick-up solenoid [B]. When the bypass pick-up solenoid [B] turns ON, the bypass pick-up roller [A] is shifted down. The lever [C] that locks the paper stopper [D] is moved and the paper stopper [D] is released. The paper can pass through between the bypass feed roller and the bypass separation roller in this state.
When the paper stopper [D] is locked, the paper cannot pass through between the bypass feed roller and the bypass separation roller.
The paper stopper [D] is released whenever the bypass pick-up roller [A] is shifted down and one sheet of paper is fed. The fed paper is transported between the bypass feed roller and the bypass separation roller without being interrupted by the paper stopper [D].
Bypass Paper End Detection
MP C6503/C8003
The bypass tray paper end sensor [A] has a feeler. When the paper in the bypass tray runs out, the feeler moves forward and its upper end interrupts the bypass tray paper end sensor [A]. Then the machine detects paper end.
Pro C5200S/C5210S
The bypass bottom plate has a bypass tray paper end sensor [A], which is a reflective photo sensor. When there is paper in the bypass tray, the bypass tray paper end sensor [A] is turned ON (interrupted). When the paper in the bypass tray runs out, the bypass tray paper end sensor [A] is turned OFF (not interrupted). Then the machine detects paper end.
Paper Size Detection
The paper size is detected by the bypass paper width sensor [A] and the bypass paper length sensor [B].
MP C6503/C8003
Pro C5200S/C5210S
| Detected Size | Sensor Output Signal | |||||||
| JPN | NA | Except JPN/NA | Bypass Paper Width Sensor | Bypass Paper Length Sensor | ||||
| CN1 | CN2 | CN3 | CN4 | CN5 | 0N: 0 (Not interrupted) OFF: 1 (interrupted) | |||
| Letter SEF | HLT SEF | A6 SEF | 0 | 1 | 1 | 1 | 1 | 0 |
| B6 SEF | B6 SEF | 0 | 0 | 1 | 1 | 1 | 1 | |
| A5 SEF | A5 SEF | 1 | 0 | 1 | 1 | 1 | 0 | |
| B5 SEF | B5 SEF | B5 SEF | 1 | 0 | 0 | 1 | 1 | 1 |
| A4 SEF | LT SEF LG SEF | A4 SEF | 1 | 1 | 0 | 1 | 1 | 0 |
| A5 SEF | HLT LEF | A5 LEF | 1 | |||||
| B4 SEF | DLT SEF | B4 SEF | 1 | 1 | 0 | 0 | 1 | 0 |
| B5 LEF | LT LEF | B5 LEF | 1 | |||||
| A3 SEF | DLT SEF | A3 SEF | 1 | 1 | 0 | 0 | 0 | 0 |
| A4 LEF | LT LEF | A4 LEF | 1 | |||||
| A3 SEF | 12"×18" SEF | A3 SEF | 1 | 1 | 1 | 0 | 0 | 0 |
| A4 LEF | LT LEF | A4 LEF | 1 | |||||
| SRA3 SEF | SRA3 SEF | SRA3 SEF | 1 | 1 | 1 | 0 | 1 | 0 |
| A4 LEF | LT LEF | A4 LEF | 1 | |||||
| 13"×19" SEF | 13"×19" SEF | 13"×19" SEF | 1 | 1 | 1 | 1 | 1 | 0 |
| A4 LEF | LT LEF | A4 LEF | 1 | |||||
Bypass Bottom Plate Lift (Pro C5200S/C5210S only)
When the bypass pick-up roller [C] is lifted due to the elevation of the bottom plate [B], the actuator interrupts the bypass tray upper limit sensor [A]. Then the machine detects the elevation of the bottom plate [B].
When the bottom plate [B] is lowered and returned to the home position, the projection [E] on the back of the bottom plate interrupts the bypass tray lower limit sensor [D]. Then the machine detects the lowering of the bottom plate [B].
The bottom plate is lifted and lowered by the bypass tray lift motor [G] via the gears [H] and the lever [F].
Paper Alignment
The pressure plate [A] on the rear side fence helps to feed the paper straight. The pressure plate [A] pushes the paper towards the front side fence [B]. Therefore, the paper is drawn to the front side fence [B] and it is fed straight.
Pro C5200S/C5210S has the bottom plate [A] and the lever [B]. The bottom plate [A] is raised when the paper is used up. When the lever [B] is pushed up by the elevation of the bottom plate [A], the pressing force of the pressure plate [C] is decreased.
Friction Ball Mechanism (Pro C5200S/C5210S only)
Pro C5200S/C5210S has a friction ball [A] in the bypass tray section to help feed paper straight. The friction ball [A] applies a load to the paper from above.
The paper rotates and is drawn towards the front side fence [B] since a load is applied from above while the paper is feeding. This mechanism helps feed the paper straight.
Side Fence Lock Mechanism (Pro C5200S/C5210S only)
Pro C5200S/C5210S has lock levers [B] on the side fences [A] in order to help feed paper straight.
After adjusting the side fences [A] in accordance with the paper size, you need to lock the lock levers [B] to fix the side fence position.