![Epson GT-9500 [44/54] Set digital halftoning](/img/pdf.png)
Epson GT-9500 [44/54] Set digital halftoning
![Epson GT-9500 [44/54] Set digital halftoning](/views2/1054428/page44/bg2c.png)
42 7/8/96-B
Set digital halftoning
(1) Code: ESC B
ASCII: ESC B i
decimal: 27,66 i
hexadecimal: 1B,42 i
(2) Function: This command specifies the mode of the half-tone of bi-level and
quad-level data.
i=01H:Fixed threshold.(Disable digital halftoning)
i=03H:TET(Text Enhanced Technology. Monochrome reading only.)
i=00H:Error diffusion mode A.(Hard)
i=10H:Error diffusion mode B.(Soft)
i=20H:Error diffusion mode C.(Net-screen)
i=80H:Dither mode A.
i=90H:Dither mode B.
i=A0H:Dither mode C.
i=B0H:Dither mode D.
i=C0H:Down load pattern A
i=D0H:Down load pattern B
Default values : I = 01H
(3) Handshaking
1) ESC B code
2) ACK( 06H )
3) i (1 byte)
Note1:This setting is available only when ESC D 01H or 02H is specified.
Note2:Fixed threshold and TET is available only when ESC D 01H is specified.
Note3:TET is available only when monochrome reading mode is specified.
Resident Dither pattern
Содержание
- C o n t e n t s 3
- 8 96 b 3 5
- Specifications 5
- 7 8 96 b 6
- 8 96 b 5 7
- 7 8 96 b 12
- E connector pin assignment 12
- 1 status indicates the current condition and error of the scanner 2 status accompanies the information block of the data block 3 status is returned to the host computer when requested with the status request command esc f 19
- 8 96 b 17 19
- Bit7 fatal error flag set to 1 when a system error occurred bit6 reserved always 0 bit5 area end flag in the case of the color page mode reading set to 1 in the last data block of each page color in the case of the monochrome mode the color line mode or the color byte mode reading set to 1 in the last data block bit4 option flag when a option equipment is installed set to 1 bit3 color attribute 1 see table below bit2 color attribute 2 see table below bit1 reserved always 0 bit0 reserved always 0 19
- Details of the status bits 19
- Format of status byte 19
- The status byte should have the format shown below 19
- Identity request 21
- Parameter request 22
- Control option 23
- Scanning start 24
- Abort scanning 25
- Set scanning mode 26
- Status flag request 27
- 1 code esc f 28
- 2 function requests a status of the scanner and the optional equipment 28
- 3 handshaking 28
- 4 contents of data block 28
- 7 8 96 b 28
- Ascii esc f decimal 27 102 hexadecimal 1b 66 28
- Esc f code 2 data block 28
- Extended status flag request 28
- Fer 1 fatal error err 1 logical or of the following fbf 0 scanner type is flatbed type error bits ist 1 option is installed pe 1 paper empty en 1 option is enable pj 1 paper jam this bit is corresponds to esc e code ope 1 option or the cover open 28
- Stx 02h header status byte 1 byte 33 21h number of data 2 bytes status data ref table 28
- Initialize 29
- Set resolution 30
- Set zooming 31
- Set read area 32
- Set data format 34
- Set color 35
- Mirroring 36
- Sharpness control 37
- Set brightness 38
- Set gamma correction 39
- Set color correction 40
- Download color correction coefficients 41
- Down load the gamma table 42
- Set line counter 43
- Set digital halftoning 44
- 8 96 b 43 45
- How to decide a bi level image data dij tij then bij 0 dij input image data bij bi level image data dij tij then bij 1 tij threshold value ij position of pixel 45
- Resident dither pattern 45
- Down load dither pattern 46
- Set auto area segmentation 47
- Eject paper 48
- 8 96 b 47 49
- Summary of control code commands 49
- 7 8 96 b 54
- Dimension 216mm horizontal 297mm vertical 54
- Manuscript table 54
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