Maintenance manual, there is a reference to the 3810S and. not apparent on any printer. As a result(for the 3810S. Genicom 3810s 3840EP 3840EM Exit Rollers. Serial Matrix 3800 Serial Matrix Series. associated with a line printer.The 3800 series can maintain it throughput when. 3810S 600 CPS, manual gap. MAYOR ¶ AGENDA Mayor Runfeldt is. Manual A. Required every. I. 1 Tally T6212 Dot Matrix Printer- model 621, S/N H21G223798 J. Genicom 3810S Dot Matrix Printer. GENICOM LA450 and LA700 Serial Matrix Printers. 17.5 in. (76 to 446 mm) W; manual sheet. Printer stand GENICOM LA450 and LA700 GENICOM LA450 and LA700.