350 Troubleshooting
Control panel:
v light flashing
The printer is almost out of toner. Prepare a new developer
cartridge to replace the current one. See “Developer Cartridge”
on page 306 for instructions.
Control panel:
v light flashing (flashes at longer intervals than
usual)
This is a warning to inform you that the installed developer
cartridge is not a genuine EPSON product. The use of such
products may damage the printer and cause the print quality to
decrease. Remove the currently installed cartridge and replace it
with a genuine EPSON cartridge by following the instructions
under “Developer Cartridge” on page 306.
Control panel: Ready light flashing (flashes at longer intervals
than the usual flashing)
Indicates that the printer is in energy-saving mode. The printer
goes into standby due to inactivity. If the Sleep mode is enabled,
the printer goes into the energy-saving mode in 15 minutes.
Installed Developer Cartridge is Not a Genuine EPSON Product
Warning
Sleep mode
Ready
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