2. Product specifi cations and descriptions
Service Manual
ML-331x/371x series
2-18
Samsung Electronics
2) Toner cartridge
By using the electronic photo process, it creates a visual image. In the toner cartridge, the OPC unit and the
developing unit are in a body. The OPC unit has OPC drum and charging roller, and the toner cartridge unit
has toner, supply roller, developing roller, and blade (Doctor blade)
• Operation condition : Temp 10~30℃, Humidity 20~85% RH
• Developing Method : Non magnetic 1 element contacting method
• Toner : Non magnetic 1 element shatter type toner
• The life span of toner (ISO 19752 pattern / A4 standard)
→ Initial toner : 2K (331x series) / 5K (337x series)
→ Sales toner : 2K / 5K / 10K(only 337x series)
• Toner Residual Sensor : Dot count with CRUM(CRU Monitor)
• OPC Cleaning : Collect the toner by using cleaning blade
• Handling of wasted toner : Collect the wasted toner in the cleaning frame by using cleaning blade
• OPC Drum Protecting Shutter : None
• Classifying device for toner cartridge: ID is classifi ed by CRUM.
ⓐ Charge Roller ⓕ Supply Roller
ⓑ Drum OPC ⓖ Charge Cleaning Roller
ⓒ Cleaning Blade ⓗ Agitator 1
ⓓ Doctor Blade ⓘ Agitator 2
ⓔ Developer Roller
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