Fujitsu 3700 3800 Compatible Ribbon – BLACK | QFJ3700CompatibilityThe QFJ3700 ribbon is compatible with the following Fujitsu printer models:Fujitsu DL3700Fujitsu DL3700 ProFujitsu DL3800Fujitsu DL3800 ProFujitsu DL3750+Fujitsu DL3850+Fujitsu DL9300Fujitsu DL9400It is also compatible with DEC (Digital Equipment Corporation) printers:DEC LA30R-KADEC LA30NDEC LA30WDEC LA36NDEC LA36WPage YieldThe page yield : of the QFJ3700 ribbon can vary based on the specific printer model and usage conditions. However, compatible ribbons for these printer models typically offer a yield of approximately 4 to 5 million characters. This translates to a substantial number of pages, depending on the content and formatting