UP-3515 (serv.man3). UP3515 Program Manual (SRV lines etc) - Sharp EPOS Service Manual (repair manual). Page 62

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This job has following functions about the SD card.

•  Displaying folder list. (Max. 200 folders can be displayed)

•  Selecting the active folder

•  Creating a user folder

The current active folder is shown in the title strings.

When the error about SD card accessing is occurred, the displaying folder returns to the top folder after displaying error message.

Currently displayed folder

Currently active user folder

Keys / operation

Action

Select an item in the list and
ENTER key

The item is a folder: Displaying a file list of the appointed folder.
The item is a file: Miss operation

Enter a number and
ENTER key

It is same as selecting an item that has the appointed serial number and entering [ENTER] key. If the entered
number is bigger then the number of the file/folder, a miss operation is caused.

NEW key

Go to Creating a new user folder screen.
If the displaying folder is not the top folder (under “ECRXXX05” folder), miss operation is occurred.

UP ONE LEVEL key

If the current folder has a parent folder, Displaying a file list of the parent folder.
If the current folder is a top of user folder, a miss operation is caused.

BACK TO TOP key

Return to top folder (under “ECRXXX05” folder)

JOB SELECTION key

Return to upper menu.
And the selecting folder on the list is used for the active folder. 
If displaying folder is not the top folder, the ancestor folder of the displaying folder is used for it.

CANCEL key

Return to upper menu.