updated March 18, 2002

Preset or Onetime-Set Commands

The SureMark printer has commands to specialize and tune each printer to improve its usability, performance, and uniqueness. This flexibility is provided through the use of flash erasable programmable read-only memory (flash EPROM) and an electrically erasable programmable read-only memory (EEPROM). Data in these memory devices will stay valid until it is redefined. This information only needs to be defined once because it will remain for the life of the printer or until it is redefined.

To verify that data was previously stored in the printer, the system can request a checksum on data stored in each sector.

Flash EPROM has 5 sectors. To rewrite information in a sector, you must first erase the sector.

vFor logo commands and predefined messages, erasing the sector is necessary only to replace a logo or predefined message number, or when the length of the logo or message exceeds space available in that sector.

vFor user flash memory, erasing the sector is necessary only when writing to an address that has already been written to.

vFor user-defined thermal and impact characters, new characters can be added if they have the same matrix as characters already in the character set. If new character sets are added, the flash memory does not have to be erased. To replace characters, you must first erase the sector.

Sector Function

1Download graphics (logo) commands

2Predefined (canned) messages

3Two user-defined impact character sets

4User-defined thermal character sets – four fixed matrix or 2 proportional

5User flash memory

6DBCS character storage

The EEPROM stores microcode tolerances (MCT) values.

Download Graphics (Logo) Commands

RS-232 Syntax:

GS * logo_num n1 n2 data or X'1D;2A;logo_num;n1;n2;data'

where:

logo_num

The logo number being stored.

1 logo_num 40

n1 One-eighth the number of dots in the horizontal direction (width = 8

×n1).

1 n1 72 for a thermal logo.

1 n1 59 for an impact logo.

n2 One-eighth the number of dots in the vertical direction (height = 8 × n2).

1 n2 255 for a thermal logo.

Appendix C. RS-232 Programming Information 109

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IBM TI5, TM7, TF7, TG5 manual Preset or Onetime-Set Commands, Download Graphics Logo Commands, Sector Function, Where Logonum

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