Printer Not Detected or Communication Error
Fix the most common USB, driver, port, power, and service-utility connection problems before assuming the tool is incompatible.
Common symptoms
The service utility says the printer is not found or cannot communicate.
The printer works in Windows but is missing inside the adjustment program.
A connection error appears during counter read or initialization.
What to do
- 1
Connect the printer directly to the computer instead of through a USB hub when possible.
- 2
Confirm the printer is powered on, idle, and not displaying another blocking error.
- 3
Verify that Windows recognises the exact printer and that the correct driver/USB port is selected.
- 4
Close duplicate printer utilities that may already be using the port.
- 5
Re-open the model-specific service utility and select the exact model and port when the program provides those choices.
Check the exact printer model
Open the model library before downloading or running service software. Compatibility can differ between nearby model numbers and regional variants.