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# Setting Heap / Stack Size

Change the settings of "Heap Size"*1 and "Stack Size"*2 for Type-J extended features.

*1 "Heap" refers to a memory area used by JavaTM Platform and related applications.

*2 "Stack" refers to a memory area used to store temporary data for an application.

1. Display the Extended Feature Settings screen.

   The Startup Setting screen appears and a list of installed extended features is displayed.

2. Press [Administrator Tools].

   The Administrator Tools screen appears.

   For details about items on the Administrator Tools screen, see "Administrator Tools Screen".

3. Press [Heap / Stack Size Settings].

   The screen for setting "Heap Size" and "Stack Size" appears.

   The current "Free" and "Total" capacity of System Memory and Heap appear at the bottom of the screen.

4. To change the heap size, press [Change] under "Heap Size". To change the stack size, press [Change] under "Stack Size".

5. Using the control panel's number keys, enter the values for "Heap Size" and "Stack Size", and then press [#].

   To restore the default values, press [Restore Defaults].

6. Press [OK].

   The Administrator Tools screen returns.

7. Press [Exit].

- You can specify [Heap / Stack Size Settings] only.

- Changed settings are activated after the device has been rebooted.

- The default "Heap Size" is 10 MB, and the default "Stack Size" is 64 KB.

- Administrator Tools Screen

- Displaying the Extended Feature Settings Screen