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Pixma MP145 Support
FAQs & troubleshooting

Writing Error/Output Error/Communication Error (Windows)

Content Id: 8200178000


Issue

Cause and solution

The machine is not ready

Confirm that the POWER lamp is lit.

If the POWER lamp is off, turn the machine on.

While the POWER lamp is flashing green, the machine is initializing. Wait until the POWER lamp stops flashing and remains lit green.

If the Alarm lamp is on, an error may have occurred on the machine. For details on how to resolve the error, see [ An Error Code Is Displayed on the LED ].

Cause and solution

Printer port setting does not match the computer's interface connecting the machine

Check the printer port settings.

(1) Click Start ⋗ Control Panel ⋗ Printers and Other Hardware ⋗ Printers and Faxes.

In non-XP Windows, click Start ⋗ Settings ⋗ Printers.

(2) Click the Canon XXX Printer icon (where "XXX" is your machine's name) .

(3) Open the File menu and select Properties.

(4) Click the Ports tab to confirm the port settings.

Make sure that a port named USBnnn (Canon XXX Printer (where "XXX" is your machine's name)) or MPUSBRNnn (Canon XXX Printer (where "XXX" is your machine's name)) is selected for Print to the following port(s).

If the port setting is not correct, change the port setting according to the interface you are using, or reinstall the MP Drivers.

Cause and solution

The machine is not connected properly

Make sure that the USB cable is securely plugged in to the machine and the computer.

If you are using a relay device such as a USB hub, disconnect it, connect the machine directly to the computer, and try printing again. If printing starts normally, there is a problem with the relay device. Consult the reseller of the relay device for assistance.
There could also be a problem with the USB cable. Replace the USB cable and try printing again.

Cause and solution

MP Drivers are not installed properly

The MP Drivers may not be installed properly. See [ How to install the MP drivers ].

Cause and solution

The printer port is not configured appropriately

Follow the procedure below to check the printer port status.

(1) Click Start, right-click My Computer, and select Properties.

In non-XP Windows, right-click My Computer on the desktop and select Properties.

(2) Click the Hardware tab, click Device Manager, double-click Universal Serial Bus controllers, and then double-click USB Printing Support.

(3) Click the General tab and make sure that there is no indication of a problem with the device.

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