Epson 4100 manual Troubleshooting Chart

112 Troubleshooting

TROUBLESHOOTING CHART, CONTINUED

Problem	Probable Cause	Solution
BEEPs, continued
1 Long followed by	Nonrecoverable Errors:	Record beep pattern. Press
4 Short-Long		ON LINE to solicit still other
Beeps:	Printhead #1 Error	patterns, if any.
LSSSS	Printhead #2 Error	Turn off and then turn on
LSSSL	Printhead #3 Error
		printer to reset. If problem
LSSLS	Carriage Motor Overcurrent
		persists, record beep
LSSLL	Carriage Motor Driven
		pattern(s) and call for service.
LSLSS	Overtemperature
	HV Error
LSLSL	24 vdc** Error
LSLLS	12 vdc Error
LSLLL	Tachometer Overrun Error
LLSSS	Linefeed Motor Overcurrent
LLSSL	Tachometer Timeout Error
LLSLS*	Processor Error
LLSLL	Synthesis Counter Overrun
LLLSL
Messages, Printed
ROM ERROR	Bad Checksum	Press ON LINE. If problem
		persists, call for service.
NONVOLATILE	New Checksum Does not	Press ON LINE. If problem
RAM CHECKSUM -	Match Previous Checksum	persists, call for service.
- Setting Default
Parameters***

*Will occur if the carriage is impeded by an obstruction.

**Used for dc cooling fan.

***The printer returns to factory default setting. This often happens when upgrading firmware.