Standard Homeopathic Company, the maker of Hyland's Teething Tablets, says it is recalling the product out of an abundance of caution. As a homeopathic product, Hylandâs Teething Tablets have a wide margin of safety that protects consumers from harm, the company says in a news release.
What is the difference between a drum cartridge and a toner cartridge? For example an HP toner cartridge holds toner and dispenses it as needed to make copies (in a copier) or to prints pages (in a printer). The photoreceptor drum is the surface to which the toner adheres before being transferred to the paper. The drum has a long but finite useful lifetime and must be replaced occasionally. Some copiers/printers have drum cartridges which can be changed out by the user.
This can depend on the exact toner you use, but if it's very cheap, it's probably for a reason. My guess would be that toners for which a separate developer is not sold either include it in the toner, or it stays in the cartridge even when the tonere is removed. It appears to be just a carrier.