Epson 610 manual Troubleshooting, Problems and Corresponding Tables to Refer to

EPSON Perfection 610 Revision B

3.3 Troubleshooting

This section describes how to troubleshoot problems according to exhibited phenomenons.

See Table 3-2that enables you to find the defective part to the unit level. Then refer to the corresponding table for checkpoints and solutions.

Table 3-2. Problems and Corresponding Tables to Refer to

Phenomenon	Problem	Refer to:
The scanner is turned on but	The scanner is not initialized.	Table 3-3
does not operate.
“Fatal Error” occurs. The	The carriage unit does not	Table 3-4
scanner is turned off and back	operate.
on but still shows the same	The carriage unit operates but	Table 3-5
error.
	the error is indicated.
	The lamp does not light up.	Table 3-6
Image is not read clearly.	Image is not read clearly.	Table 3-7
“Communication Error” occurs.	USB interface error	Table 3-8
Communication with the host
is attempted again, but the
same error occurs.

Table 3-3. The scanner is not Initialized.

Cause	Step	Checkpoints	Finding	Remedy
CN1 on the power		Is CN1 on the power		Connect CN1 to the
supply board is	1	supply board	Yes	power supply
disconnected.		disconnected?		board.

Table 3-4. The carriage unit does not operate.

Cause	Step		Checkpoints	Finding	Remedy
The PS	1	With scanner power on, check		No	Replace the PS
(Power		CN101 for the output voltage at			board.
Supply)		the pins below.
board is		• Pins:	8/9 (+) and 6/7 (-)
defective.		• Voltage:	+24VDC
The carriage		Is grease (G-26) properly		No	Apply grease to
drive	2	applied?			the specified
mechanism		(See Chapter 6.)			points properly.
is defective.
	3	• With the upper housing		No	Check the
		removed, turn the scanner on,			carriage unit, and
		and check that the CR motor is			replace any
		live.			defective part or
		• Remove the CR motor, and			disassemble and
		check that the carriage unit			assemble the
		moves smoothly.			scanner again.
The CR	4	Disconnect CN6 on the main		No	Replace the CR
motor is		board. Then, using a tester,			motor and go to
defective.		check that the coil resistance at			step 4.
		each point below is 6.2Ω.
		1. Between Pins 2 and 4
		2. Between Pins 1 and 3
	5	Follow the steps below to check		No	Replace the main
		for the CR motor driver circuit.			board.
		1. Set the meter to Ω.
		2. Place the (-) terminal of the
		tester on Pins 1, 2, 3, and then
		4 of the CN6 on the main
		board.
		3. Place the (+) terminal of the
		tester on Pin 6 or 7 of the CN4
		on the main board.
		4. Turn the scanner off, and
		check that the meter shows
		“∞“for each pin.
The main	6	---		---	Replace the main
board is					board.
defective.

Troubleshooting Troubleshooting 23