Seiko BX-900 Specifications download pdf (Page 69)

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6.2 FLASH MEMORY

A FLASH memory on this printer allows for using user-defined characters, downloaded characters, optional

fonts, macro function, NV graphics function, downloaded bit image function, User page 1-byte font, and User

page international characters. FLASH memory consists of the following area.

System area stores data for controlling system.

Font area stores font data such as kanji and so on.

User area stores user-defined characters, downloaded characters, optional fonts, macro, NV

graphics, downloaded bit image, User page 1-byte font, and User page international

characters.

System area is rewritten using the commands such as "Function Setting Change" command (DC2 'k') or

"Maintenance Counter Preservation" command (GS 'g' '1' m). Font area can be rewritten through the

download mode selection. User area can be rewritten using registration commands such as user-defined

characters, downloaded characters, optional fonts, macro, NV graphics, downloaded bit image, User page

1-byte font, and User page international characters.

Amount of memory other than system area and font area is 1048576 bytes. When using registration

commands, it is necessary to know the remaining amount of memory beforehand. Read this section before

using these functions.

(1) Memory area

This printer allocates or frees memory area in order to change uses of the user area and its capacity.

Allocating the memory area means that the memory is divided into the specified capacity (the number of

bytes) so as to be exclusively used for a certain function.

Freeing the memory area means that the division of the memory for the exclusive use of a certain function is

abolished so that the other functions become usable. The freed memory area is not reused until the printer

executes the commands "User Area Initialization" command (DC2 'R') or "User Area Defragment" command

(DC2 '*' '1').

However, when using user-defined characters, downloaded characters, optional fonts, macro, NV graphics,

downloaded bit image, User page 1-byte font, and User page international characters, the user must be sure

not to exceed the remaining memory area.

The capacity of one memory area is limited to 65536 bytes for optional fonts, 2060 bytes for macro and

65536 bytes for downloaded bit image. Total memory area of registered graphics for the NV graphics

function is limited to 1048576 bytes. Do not exceed this limit when using these functions.

Refer to the description of each command on how to calculate the amount of using memory.

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Seiko BX-900 Specifications Page 69