Epson Scan 2500 Printer/Scanner does not operate at power on, Symptoms and Problem s, Flowchart

EPSON Stylus Scan 2500 Revision A

Table 3-2. Symptoms and Problem s

Symptom	Problem	Flowchart No.
Printer does not	LEDs do not light.
operate at power		Flowchart 3-1
	Printer mechanism does not operate.
on.

3.1.1 Printer/Scanner does not operate at power on

Start

Error is detected Error is indicated by LED indication. Flowchart 3-2

AC voltage = OK?

No

Adjust power

supply

Failure occurs	Printing is not performed.
	Abnormal printing (missing dot, etc.)	Flowchart 3-3
during printing.
	Print quality is poor.

Yes

Is fuse

Yes

Replace the fuse, disconnect CN10

Printer does not	No paper is fed.
feed paper	Paper feed is irregular.	Flowchart 3-4
correctly.	Paper jam occurs.
Control panel
operation is	No response to button access.	Flowchart 3-5
abnormal.

F1 burned out?

No

Check the output voltage of CN2 on the power supply.

on MAIN board, and turn on power

No	Did
	the fuse burn
	out again?

Yes					Yes
		No
Is the
output
voltage
normal?
Yes
				Replace the
				power supply.
Replace	the MAIN
board.
			Check the motors,
			printhead, and
			other
			components.

End

Flowchart 3-1.

Troubleshooting Unit Level Troubleshooting 62