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User's Guide
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
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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
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Solving Problems
130
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