Sealand printer takes the lead in realizing doublesided printing on C-type channel, forming a unique double-sided C-channel + double paper wheel feeding system, which greatly reduces the paper jam rate of the printer, but also increases the printing time of the first page to less than 4 seconds, the printing speed is faster, the mobile phone touch screen control panel design, the operation is very simple, the engine rack is integrated. The toner cartridge was completely independently designed and manufactured. In early 2021,
the printer integrated master chip (SOC) "Sealand · Tianxin" was successfully developed. Sealand has hundreds of patents.