Troubleshooting 343
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Control panel: v and Error lights on
A memory read/write error has occurred. Try reinstalling the
developer cartridge or replacing the current cartridge with a new
one by following the instructions under “Developer Cartridge”
on page 306. If this still does not resolve the problem, turn the
power off and then on again.
Control panel: Error light on
The printer’s front cover is open. Make sure that the printer’s front
cover is closed properly by opening and closing it again.
Control panel: Error light on
The printer’s output cover is open. Make sure that the printer’s
output cover is closed properly by opening and closing it again.
Control panel: Error light on
Developer Cartridge Memory Error
Front Cover Open
Output Cover Open
The Upper Cover of the Optional Duplex Unit is Open