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Extension Fields

The extension contains the following fields:

ESFEXT

The CA Spool FCB extension must begin with the text ESFEXT. This is a very useful eye-catcher in unformatted listings.

MPP

Maximum print position. The length of this field is 2 bytes. The value must be in the range of 0 - 255. It is sent to the printer in an SHF command.

PPM-q

Print quality. The length of this field is 1 byte. The value must be in the range 0 - 3. It is sent to the printer in the quality field in a PPM command.

CPI

Characters per inch. The length of this field is 1 byte. The value must be in the range 0 to 19. It is sent to the printer in the SPD command.

PPMx

Drawer selection. This field is for variables in the PPM SCS command for the 5210. The first half byte contains the FC specification and the second half contains the SD specification. For more information, see the relevant printer programming guide.