Service manual

ManualsBrandsSharp ManualsAll in One PrinterAL-2051

AL-2051 SIMULATION, TROUBLE CODES 10 - 4

5 01 Operation panel display

check

[Function]

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.

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]

02 Fusing lamp, cooling fan

operation check

[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]

03 Copy lamp ON [Function]

When [ENTER]/[START] key is pressed, the copy lamp turns ON for 5sec.

[Operation]

Main

code

Sub

code

Contents Details of function/operation

1) Initial display

2) When [Mode Select] key is pressed, the machine goes into the individual ON mode.

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1) Initial display 2) [ENTER]/[START] key

05-01 LCD/LED CHK.

1) Initial display

05-02 HT LAMP CHK

EXECUTING...

1) Initial display

05-03 C-LAMP CHK

EXECUTING...