Wireless LAN (Wi-Fi) Connections Become Unstable When Using
USB 3.0 Devices on a Mac
When you connect a device to the USB 3.0 port on a Mac, radio frequency interference may occur. Try the
following if you cannot connect to wireless LAN (Wi-Fi) or if operations become unstable.
❏
Place the device that is connected to the USB 3.0 port further away from the computer.
❏
If the printer supports the 5 GHz frequency range, connect to the SSID for the 5 GHz range.
Related Information
&
“Wi-Fi Specifications” on page 145
Printout Problems
Printout is Scuffed or Color is Missing
If you have not used the printer for a long time, the print head nozzles may be clogged and ink drops may not be
discharged. Perform a nozzle check, and then clean the print head if any of the print head nozzles are clogged.
Related Information
&
“Checking and Cleaning the Print Head” on page 91
Banding or Unexpected Colors Appear
The print head nozzles may be clogged. Perform a nozzle check to check if the print head nozzles are clogged.
Clean the print head if any of the print head nozzles are clogged.
Related Information
&
“Checking and Cleaning the Print Head” on page 91
User's Guide
Solving Problems
130