Epson TM-FX2180 manual Component Functions, CPU IC2

EPSON FX-2180 Service Manual Chapter 2 Operating Principles

The table below identifies and describes the main components of the control circuit on the C244 MAIN board.

Table 2-3. Main Components of the Control Circuit

Component	IC		Function(s)
Gate array	IC1	∙	System control
(E05B50**)		∙	Peripheral device control
CPU	IC2	∙	Receives data from the host
(TMP96C141BF)			computer and sends it to the input
			buffer in RAM
		∙	Extends the input data held in the
			buffer to create image data
		∙	Loads image data to the image data
			buffer
		∙	Transfers image data to the print
			head
1 Mbit / 4 Mbit	IC3	Contains the buffer and the working
PS-RAM		area
2 Mbit PROM	IC5	Contains the character tables and the
		program that runs the CPU
Serial EEPROM	IC8	Contains data including:
(AT93C46)		∙	Default setting values
		∙	Market data
		∙	Mechanism and print head
			parameters
SLA7024M	IC9	Driver circuit for the CR motor
A2917SEB	IC12	Driver circuit for the PF motor
Reset IC	IC15	Generates the reset signal at power on
(BH6150F)		and power down, and resets the CPU
		and the gate array

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