AL-1456 (serv.man20). Online Manual - Sharp Copying Equipment User Guide / Operation Manual. Page 32

If nothing prints even when the unit is turned on, please wait a few moments. The unit needs a longer time to process  
intricate data. If the unit still does not print, refer to the check list below.

When the misfeed ( ) indicator blinks or (

) 

blinks in the display, the unit will stop because of a 

misfeed.

Remove the jammed paper as explained in 

"MISFEED REMOVAL" in the Operation Manual.

The ON LINE indicator on the operation panel turns 

off while the unit is used for copying. Scanning and 

printing is not possible at this time. When copying is 

finished, the ON LINE indicator will turn on after the 

set auto clear time elapses, and the unit will be 

ready for scanning and printing. You can also press 

the clear (

) key twice or press the ON LINE key 

to make the unit ready for scanning or printing.

When choosing "Print" from the "File" menu located in 

applications, be sure you have selected "SHARP AL-

XXXX" printer displayed in the "Print" dialog box.

Check if the printer driver has been installed, following 

the steps listed below.

On Windows 95/98/Me/NT 4.0/2000, click the "Start" 

button, select "Settings" and then click "Printers".

If you still cannot print after confirming the "SHARP 

AL-XXXX" printer driver icon, the printer driver may 

not have been installed correctly. In this case, delete 

SHARP Personal MFP series software and then 

reinstall it.

Reference:

Check here.