Canon LBP352 User Manual page 507

● If you cannot perform any operation, hold down the power switch for 5 seconds or more to turn OFF the
power. When turning ON the power, wait for 10 seconds or more after
then press the power switch.
No SD card can be used.
● Is <SD Card> set to <Off>? Select <On>.
SD Card(P. 369)
● Is the SD card write-protected?
Shut down the machine, and check whether the SD card is write-protected. If the card is write-protected,
unlock the card, and again install it on the machine.
Troubleshooting
Installing an SD Card(P. 583)
500
indicator is turned OFF, and