The Epson RX-80FT+/100+ 9 pin dot matrix printers were introduced to replace the RX-80F/T and RX 100. They incorporated the additional ability to fit a cut sheet feeder and could print near letter quality when fitted with an optional interface board. They were replaced by the FX-80/100. Each printer has two sets of DIP (Dual In-line Package) switches located on the center back of the main circuit board, access to which require the removal of the printer cover. These switches control certain printer functions and default settings, the details of which are listed below.
Warning: Always disconnect the product from both the power source and the host computer before removing the printer cover.