Issue
The Connect+® / SendPro™ P displays error code 0418-42-009A "{{leftprinthead}} carriage has been exposed to unrecognized ink" and will not print.
Cause
The Connect+ / SendPro P has detected an invalid ink cartridge.
Resolution
To resolve this issue, ensure that all installed ink cartridges are genuine Pitney Bowes cartridges. Non-Pitney Bowes cartridges can damage the Connect+. If a genuine Pitney Bowes ink cartridge is not being used, replace it with a genuine Pitney Bowes cartridge.
If you need ink, order a genuine Pitney Bowes replacement ink cartridge:

If the issue is not resolved after installing genuine Pitney Bowes cartridges, contact customer support. Please have your model number ready.
UPDATED: July 01, 2020