E2Prom Control Circuit - Epson FX 1170 - B/W Dot-matrix Printer Service Manual

REV.-A
2.3.8
Figure 2-31 shows the E2PROM control circuit. The E2PROM is non-volatile memory containing information . .
such asthetop-of-form position. Because the E2PROM is a serial 1/0 device, the gate array converts the parallel
data (sent from the host computer) into serial data.
CPU (IC2C1)
Data Bus
Figure 2-31. E2PROM Control Circuit
2-30