HP L 5 manual Transfer Raster Data by Plane, Transfer Raster Data By Row/Block Command

Transfer Raster Data by Plane

This command sends a plane of data to the printer and advances to the next plane (not to the next row).

?* b # V [raster data]

Default = N/A

Range = 0 to 32767

The value field (#) identifies the number of bytes in the plane. The number of planes per row is specified by the Simple Color command (?*r#U) or the Configure Image Data command (?*v#W), depending on which color mode is used. The first plane sent represents the least significant bit in the pixel.

Since ?*b#V does not advance the cursor to the beginning of the next raster row, it cannot be used for the last plane or for single-plane rows. Only ?*b#W can advance the cursor to the next row.

The amount of data sent varies from plane to plane and is independent of raster width. Planes shorter than the raster width are zero-filled. Empty planes can be sent using ?*b0V.

Note	For monochrome printers, zero indicates a white pixel. For color
	printers, the color indicated by zero depends on the current palette.

Transfer Raster Data By Row/Block Command

The Transfer Raster Data command is used to transfer a row of raster data to the printer. This command is used for sending all raster graphics data to monochrome printers. It is also used for color printers when encoding the raster data by pixel rather than by plane. When encoding color raster data by plane, this command is used for single-plane rows, or for the last plane in a multi-plane row, since this command advances the cursor position to the beginning of the next raster row.

?* b # W [raster data]

Default = N/A

Range = 0 to 32767

EN Raster Graphics 6-33