Epson FX-880 Service Manual page 58

Operating Principles
Data from the host computer is first stored in the printer's input buffer. The printer then converts it into
image data, stores it in the image buffer, and then transfers it to the printhead via the gate array. This is
shown in the diagram below:
PF Motor Driver IC
CN3
Print Head Driver
2-16
Figure 18. Data Flow
Figure 19. MAIN Board Component Layout (C229)
CR Motor Drive IC Gate array
E05B50
PSRAM
PROM
CPU
EEPROM
EPSON FX-880/FX-1180 Service Manual