This app allows to preset function settings of Seiko Instruments Inc. 's POS printer RP series. App function. Write function settings to the printer. Read function settings from the printer. Save settings to file. Load settings from file. Print function settings. Load default settings. Printer Models. Rp-d10-k27j1-e. Rp-d10-k27j1-u. Rp-d10-k27j1-1. Rp-d10-k27j2-b.