Sharp AL-2051 Service Manual page 80

Main Sub
Contents
code code
5 01 Operation panel display
check
02 Fusing lamp, cooling fan
operation check
03 Copy lamp ON
[Function]
<LED check mode (All ON/Individual ON)>
When [ENTER]/[START] key is pressed, all the LCD's on the operation panel are turned ON (all
pixels ON).
After 5sec of ON, the machine goes into the sub code entry standby mode.
When [Mode Select] key is pressed under the all ON state, the mode is shifted to the individual
ON mode, where the LED's are turned on one by one from the left upper end to the left lower
side then from the right upper side to the right lower side. (All the pixels of LCD are lighted
simultaneously.) After lighting all the LCD's sequentially, all the LCD's are lighted simulta-
neously. After 5sec from lighting all the LCD's simultaneously, the machine goes into the sub
code entry standby mode. (Cycle of individual ON mode: ON 300ms, OFF 20ms)
When [Clear] key is pressed in the LED check mode, the machine goes into the sub code entry
standby mode.
When [START] key is pressed, the machine goes into the key input check mode.
<Key input check mode>
When the machine goes into the key input check mode, the value display section indicates "– –
–" (For the LCD model 0 of the LCD is indicated).
When any key is pressed after pressing a key on the operation panel, "+1" is added to the
value.
Once a key is pressed, it is not recounted.
When [START] key is pressed, counting is made and the machine goes into the LED ON check
mode (LED all ON status) after 3sec.
When [Clear] key is pressed for the first time, it is counted. When it is pressed for the second
time, the key check mode is retained as well as when another key is pressed.
(Note in the key input check mode)
• Be sure to press [START] key at the last. (If it is pressed on the way, the machine goes into
the LED ON check mode.) (LED all ON status)
• Multi key input is ignored.
[Operation]
<LED check mode (All ON/Individual ON)>
1) Initial display
■■■■■■■■■■■■■■■■■■■■■
■■■■■■■■■■■■■■■■■■■■■
2) When [Mode Select] key is pressed, the machine goes into the individual ON mode.
<Key input check mode>
1) Initial display
05-01 LCD/LED CHK.
0
[Function]
When [ENTER]/[START] key is pressed, the fusing lamp repeats ON for 500ms and OFF for
500ms 5 times. During this period, the cooling fan motor rotates.
[Operation]
1) Initial display
05-02 HT LAMP CHK
EXECUTING...
[Function]
When [ENTER]/[START] key is pressed, the copy lamp turns ON for 5sec.
[Operation]
1) Initial display
05-03 C-LAMP CHK
EXECUTING...
AL-2051 SIMULATION, TROUBLE CODES 10 - 4
Details of function/operation
2) [ENTER]/[START] key
05-01 LCD/LED CHK.
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