Epson 4100 manual Problem Probable Cause Solution Communications

118 Troubleshooting

TROUBLESHOOTING CHART, CONTINUED

	Problem		Probable Cause		Solution
	Communications
Character or Control		1.	Printer's Menu Settings	1.	Normal. Host computer
Problems With Any			Have Been Superseded		commands override printer
Interface			by Host		configuration settings for print
					style, characters set, and
					forms control. (These printer
					configuration settings are only
					effective until the host changes
					the settings using printer
					control commands.)
		2.	Printer Off or Off line	2.	Check.
		3. Blown Fuse		3.	Replace fuse (Page 107).
		4.	Electronics Failure	4.	Call for service.
Problems When Using		1.	Wrong Serial Interface	1.	Host and printer settings for
Serial Interface Only:			Settings		baud, data bits, parity, and
•	Garbled text with				stop bits must be the same.
					Check "Serial Options" (Page
	numerous "?"
					64) in printer's configuration
	characters
					mode.
•	No printout	2. Loose or Bad Interface
			Cable	2.	Check. If necessary, replace
• Printer prints a few
		3. Bad Data			interface cable.
	pages and quits
				3.	Check data using hex dump
		4.	Electronics Failure		mode (Page 132).
				4.	Call for service.