Canon imageCLASS MF4270 Basic Operation Manual page 42

S [Clear] key
Press to clear entered alphanumeric characters.
T [ ] key
Press to increase the value for various settings.
Also press to see the next item in the menu.
U [OK] key
Press to accept a set function or mode.
Also press and hold to print a sample page
when you are in the copy mode. For details, see
"Printing a Sample Page, " on p. 3-16.
V [ ] key
Press to decrease the value for various settings.
Also press to see the previous item in the menu.
W LCD display
Displays messages and prompts during
operation. Displays selection, text, and numbers
when adjusting the settings.
X [Toner Gauge] key
Press to check the toner remaining in the toner
cartridge.
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