Our toner meets the different requirements of our systems. UTAX original toner is neither toxic nor carcinogenic. This is confirmed by the AMES test. The test results are stated in the security data sheets. Some of our copiers have a sealed self contained toner system that eliminates disagreeable physical contact with the toner. These advanced copiers leave no toner residues at all. Features: - Brand compatibility: Utax - Colour toner cartridges quantity: 1 - Colour toner page yield: 20000 - Compatibility: 3508 ci, 3508 ci - OEM code: CK-8531Y - Printing colours: Yellow - Quantity per pack: 1 - Supply type: Single pack - Type: Original Vendor information: - Brand Name: Utax - Warranty: 1 - Product.Details.Specifications.Level1: Server, Computer & Printer Parts - Product.Details.Specifications.Level2: Printers & Spare Parts - Product.Details.Specifications.Level3: Printing Supplies - Product.Details.Specifications.Level4: Toner Cartridges