Canon imageCLASS MF3110 Service Manual - Page 166
Display test, LED lamp test, Operation key Test
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Chapter 5ޓRunning H/F 5 5.6.4.4.3 Operation panel tests 0007-6702 The operation panel test is selected by pressing the numeric key 7 from the faculty test menu. In this test, check that the display, LED lamps and keys on the operation panel are operating correctly. Display test Pressing the Start key from the operation panel menu, "H" is displayed 20 characters by 2 lines. The next time the Start key is pressed, all the LCD dots are displayed. Check for any LCD dots in the display that are not displayed. LED lamp test All the lamps on the operation panel light by pressing the Start key after the display test. Check for any LED that does not blink during the test. (However, the Energy Saver key does not go on at this time.) Operation key Test The operation key test is selected with the Start key after the LED lamp test is done. In this test, a character disappears when its operation key is pressed. The list of characters and their operation keys is as follows. Check to make sure at this time that all characters properly disappear when their operation keys are pressed. Character 0 9,*,# A B C D E D Operation key Numeric key Cursor key (+) Cursor key ( ) OK key Menu key Status Monitor key Collate/2on1 key T-5-7 Character F G H I J Q Operation key Image Quality key Enlarge/Reduce key Exposure key COPY key SCAN key Energy Saver key 5-20