ER-A770 (serv.man3). Sales Support - Sharp EPOS Handy Guide. Page 12

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This feature will display all the GLU codes and their balances that
are open for the Clerk that is currently assigned. (This feature may
be enhanced from production machines)

The Clerk can then either cursor to the required displayed GLU
code and re open it to add further items, or they can cancel the
report from the display.

There are two ways in which the feature can be used, method 1
would be to press the Opened GLU Key the opened codes would
then be displayed.
Method 2 will automatically display any opened GLU codes upon
clerk entry.

1. For method 1 in above simply assign the Opened GLU key to

the keyboard (Free Key Code 113)

2.  For method 2 set the OPENED GLU DISP to ENABLE

Select PGM2 Mode
Select Setting
Select Optional
Select Function Prohibit
Set the Opened GLU Display, to Enable

1. The first method is to press the Opened GLU key.
2. The second method is to sign on a Clerk.