Service ManualY100250-4 3-113.4.3 OPTIONAL IEEE 1284 PARALLEL INTERFACE CARDThe optional parallel interface card hosts a 36-pin Centronics parallel interface. It is installed in thespecific slot alongside the first serial interface on the rear of the printer. It is suggested to use an interfacecable up to 1.5 meters long. The ECP data exchange protocol is used.This card is shown in the following figure.Fig. 3-9 Parallel Interface Card19 GROUND20 GROUND21 GROUND22 GROUND23 GROUND24 GROUND25 GROUND26 GROUND27 GROUND28 GROUND29 GROUND30 GROUND31 INIT.32 ERROR33 LOGIC GROUND34 NC35 +5 V (PULL-UP; 3.3K ohm)36 INPUT / SELECT INFRAME GROUND 17ACKNOWLEDGE 10AUTOFEED XT 14PAPER EMPTY 12LOGIC GROUND 16STROBE 01DATA 1 03DATA 2 04DATA 3 05DATA 4 06DATA 5 07DATA 6 08DATA 7 09BUSY 11NC 15+5 V 18ON LINE 13DATA 0 02Fig. 3-10 Parallel Interface Pin-OutCENTRONICSINTERFACECONNECTOR J1 FORCONNECTION TOTHE MAIN BOARD
