Brother International HL-2400C Service Manual - Page 585

APPENDICES s TIFF Format (Raster Graphic Mode 1024) & Advanced Photoscale Technology The printer's PCL mode supports TIFF Version 5.0 file format as a format to transfer raster graphics data. Mode set command for TIFF file format is ESC *b1024M. One transfer graphics data command (ESC*b###W) should contain whole TIFF file. In mode 1024, transfer graphics data command byte count does not have a limitation of 32,767 byte. The printer supports both 'MM' (big endian) format and 'II' (little endian) format. Print model is not applied to this type of data transfer. The printer has some limitations on the TIFF file format. 1. Tags position has to be prior to the picture (strip) data. 2. Compression tag --- Tag ID:259 The printer supports 1, 2, 3, 4 and 32773. 1: no compression (Bits/Sample=1,4,8) 2: CCITT G3 MH (Bits/Sample=1) 3: CCITT G3 MR (Bits/Sample=1) 4: CCITT G4 (Bits/Sample=1) 32773: Pack Bit (Bits/Sample=1) 3. Sample/pixel --- Tag ID:277 This value should be 1. This means the printer accepts only monochrome TIFF file. 4. Bits/Sample --- Tag ID:258 The printer supports 1, 4 and 8. If you specify 4 or 8 and the printer resolution is 600 dpi, the printer prints that page utilizing APT. 5. Horizontal resolution (Tag ID=282) and Vertical resolution (Tag ID=283) Compression type Bits/Sample Available Resolution APT No Compression 4, 8 From 1 dpi to 300 dpi ON No Compression 1 Printer's Resolution OFF Pack Bit (300 or 600 dpi) CCITT G3 & G4 1 200,300,400,600 dpi OFF 400 & 600 dpi are only when printer operates in 600 dpi. We recommend 150 dpi or less resolution for APT to reduce data size. A-53