"Unknown ink cartridge" message on the SendPro C Auto
The Unknown ink cartridge message appears when you install an ink cartridge.
You have installed the ink cartridge for a smaller postage meter.
Ensure you install the correct ink cartridge. The smaller ink cartridges 795-5 or SSl-798-0 will fit into the carriage, but will not work.
Visit our supplies site to order the correct cartridge.
UPDATED: July 31, 2023