Brother HL-1660E User Manual page 231

USER'S GUIDE
Mode 1152 graphic data header data structure
Position Data
0-1 6E 6E
2-3 0A 00
4-7 5E 00 00 00 Picture data start offset from header top
8-11 File Length
12-13 01 00
14-15 01 00
16-19 4A 00 00 00 reserved
20-21 compression 02 00: Fax MH format
22-55 00....00
56-59 Picture Data Length
60-61 01 00
62-63 01 00
64-65 Pixels/line
66-67 Pixels/line
68-69 Lines/picture If picture line count = 3100, these 2 bytes become "1C 0C".
70-71 Lines/picture Same as 70-71
72-73 00 00
74-75 Photo metrics 00 00: data 0 = white 01 00: data 0 = black
76-77 02 00
78-79 Bit Fill Order 01 00: filled from MSB
80-81 01 00
82-83 00 00
84-85 01 00
86-87 horizontal resolution (200,300,400,600)
88-89 vertical resolution (200,300,400,600)
90-91 02 00
92-93 00 00
Appendix–37
Description
'nn' This is header ID.
reserved (Header Version)
File length including 94 byte header. If file length is 65,536
byte, these 4 bytes become "00 00 01 00".
reserved
reserved
03 00: Fax MR format
04 00: Fax G4 format
All zero
If picture data length is 65,442 (65,536 - 94) byte, these
4 bytes become "A2 FF 00 00".
bit/pixel
bit/pixel
If picture dot width = 2400, these 2 bytes become "60 09".
Same as 64-65
reserved
reserved (Endian format)
02 00: filled from LSB
reserved
reserved (min. pixel value)
reserved (max pixel value)
C8 00 00 00 : 200 dpi
2C 01 00 00 : 300 dpi
90 01 00 00 : 400 dpi
58 02 00 00 : 600 dpi
400 and 600 dpi are available when printer
operates in 600 dpi.
C8 00 00 00 : 200 dpi
2C 01 00 00 : 300 dpi
90 01 00 00 : 400 dpi
58 02 00 00 : 600 dpi
The printer accepts different values for vertical and
horizontal resolutions.
400/600 dpi are available when printer operates in 600 dpi.
reserved (resolution unit = inch)
reserved (error code)