
E. Fusing/paper exit section
(1) Outline
Toner attracted to the paper in the transfer section is fused by heat and pressure of the heat roller. The heat roller is of thin aluminum roller which is high heat conductivity, minimizing the warm up time. The heat roller surface temperature is detected by the fusing temperature sensor to maintain the fusing temperature at a constant level (160/155 ˚C).
(2) Major parts
6)
2) POUT
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2) POUT
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| MODEL | Note | |
Code | Signal name | Name | Type | Function/operation | Active condition | ||||
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1 |
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| Heat roller |
| Heats toner on the paper and | LOW (0V) when |
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| fuses onto the paper. | paper is |
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| detected. |
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2 | POUT | POUT IN | Paper exit detector | Photo transmission | Detects paper exit. |
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| sensor |
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3 |
| RTH IN | Fusing temperature | Thermistor | Detects the heat roller |
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| sensor |
| surface temperature. |
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4 |
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| Temperature fuse 1 | Mold | Assures safety in overheating. |
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| (Fusing section) |
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5 |
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| Temperature fuse 2 | Mold | Assures safety in overheating. |
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| (Fusing section) |
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6 |
| HL | Heater lamp | Halogen lamp | Heats the heat roller. |
| 100V series | 10V 500W | |
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| 120V series | 120V 500W | |
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| 200V series | 230V 500W | |
7 |
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| Pressure roller |
| Applies a pressure to the |
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| heat roller and paper to |
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| improve fusing efficiency. |
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8 |
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| Paper exit roller |
| Discharges paper after fusing. |
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9 |
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| Separation pawl |
| Separates paper from the |
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| fusing roller mechanically. |
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10 |
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| Paper exit roller |
| Discharges paper outside the |
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| machine after fusing. |
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11 |
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| Pressure spring |
| Applies a pressure to the |
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| heat roller, paper, and |
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| pressure roller to improve |
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| transfer efficiency. |
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