LASER CLASS 730i/720i/710 Chapter 4: Maintenance and Service
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c) Operation panel tests
The operation panel test is selected by pressing the numeric button 7 from the faculty test
menu. In this test, check that the display, LED lamps, buttons and the sensors of one-touch
speed dialing panel on the operation panel are operating correctly.
c-1) Display test
Pressing the Start button from the operation panel menu, “H” is displayed 20 characters by
2 lines. The next time the Start button is pressed, all the LCD dots are displayed. Check
for any LCD dots in the display that are not displayed.
c-2) LED lamp test
The LED lamp test is selected by pressing the Start button after the display test.
When the Start button is pressed, all the lamps on the operation panel light. Check for any
LED that does not blink during the test.
c-3) Operation button test
The Operation button test is selected by pressing the Start button after the LED lamp test.
In this test, you press the button corresponding to the displayed character to put it out. The
table giving the correspondence between the characters and the buttons is below. When
the LEDs for the character for the Resolution button, the Contrast button, or the Document
Type button are all lit up, the display goes out.
Character Operation button Character Operation button
0-# Numeric buttons L Left cursor button
A Coded dial button M Down cursor button
B Redial/Pause button N Right cursor button
C Hook button O Up cursor button
D Copy button P Set button
E Energy Saver button Q Fax/I-Fax button
F Clear button R Resolution button
G Start button S Contrast button
H Stop button T Document type button
I Monitor button U Direct Tx button
J Delete File button V Counter Check button
K Directory button
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