HP d640 HP D640 High-Volume Printer - Enhanced Features Manual, C5620-90027 - Page 45

Extended TIFF The following is a list of extended TIFF fields which are accepted by the D640 printer. The additional compression modes 3 and 4 are listed in the Baseline TIFF section on page 36. Extended TIFF definitions T4Options A vector of 32 flag bits which set parameters for T4-encoding. 0124,Long,1 Unused bits must be 0. Default =0. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Fill Unc 2D 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 2D = 0 2D = 1 1-dimensional coding is used. 2-dimensional coding is used. If more than one strip is specified, each strip must begin with a 1-dimensionally coded line. Unc = 0 Uncompressed mode is not allowed. Unc = 1 Uncompressed mode is allowed. The D640 printer does not support uncompressed mode within compressed data. Setting of this bit is treated as an error. Fill = 0 No fill bits. Fill = 1 Fill bits have been added as necessary before EOL codes such that EOL always ends on a byte boundary. T6Options A vector of 32 flag bits which set parameters for T6-encoding. 0125,Long,1 Unused bits must be 0. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Unc 0 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Unc = 0 Uncompressed mode is not allowed. Unc = 1 Uncompressed mode is allowed. The D640 printer does not support uncompressed mode within compressed data. Setting of this bit is treated as an error. Default = 0. DocumentName The name of the document from which the image was scanned. 010D,ASCII,1 Chapter 3: Technical Reference 41