Phaser 3300MFP Service Manual 2-15
Theory of Operation
Temperature Detecting Sensor (Thermistor)
â– Thermistor Type: FS-50003 (SEMITEC 364 FL Type)
■Temperature Resistance: 7 kQ (180 °C)
â– SYSTEM Temperature SETTING
■Stand by:165 ± 5 °C
■Printing:189 ± 5 °C (5 minutes before)
■184 ± 5 °C (5 minutes after)
■Overshoot: 200 °C less
■Overheat: 210 °C less
Heat Roller
â– Length: 254 mm
â– Valid length: 224 mm
■OD: ϕ 28.3 ± 0.05 (Coating incl., Crown 0.05 ~ -0.15)
â– Material: AL (AL5052) + PFA Coating
â– Thickness: 0.9 mm
â– Coating Material: PFA 100%
â– Coating Thickness: 20 um (Thickness after abrasion)
â– GND Type: H/R Bearing Grounding type By SECC Fuser lower frame
Pressure Roller
â– Shaft
â– Length: 251.3 mm
â– Material: STKM
■Thickness: ∅ 6 (∅ 12–RUBBER portion)
â– Rubber
â– Material: Silicon Rubber (Tubing Type: 032.25)
â– Length: 226.4 mm
â– Thickness: 5.5 mm (one-side)
■OD: ∅ 32.25 ± 0.2 (Center part Crown -0.3 ~ -0.5)
Media Separating System
Teflon Coating with SUS Plate Claw System