APS EPM203-MRS, Техническое описание

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EPM203-MRS - Technical reference - Rev. G Page 21
Advanced Printing Systems
5.2 Setup and Hardware control commands
GS / n
Description: Set printing speed / Maximum peak current / Dynamic division
Format:
<1Dh> <2Fh> <n>
Comments: n = 1 to 32: (Default n = 5) Software programmable consumption (Dynamic division). The
maximum number of black dots which are simultaneously heated is (n+1) x 8.
In default mode, n = 5.
Example: n = 5 Maximum black dots heated: (5+1)*8 = 48.
Printer Peak consumption @5V: (0.3A (Stepper Motor) + 5*48/160) = 1.8A
160 Ohms is the dot resistance.
GS s n1 n2
Description: Set maximum print speed
Format:
<1Dh> <73h> <n1> <n2>
Comments: This control code may be used to reduce the print speed. Maximum print speed may be
reduced in case of paper roll diameter above 60mm and/or if rewinding mechanism is
connected to the printer. It can also help to reduce noise.
Bytes n1, n2, set the time T (in µs) between each step:
T = (256*n1) + n2. 1000 < T < 25000.
Default: T = 2000 : n1 = 7, n2 = 208.
Example: T = 2000 µs
Maximum print out speed:
(1/( 8 * 2000e-6)) = 62.5 mm/s
8 dots/mm is the dot density.
GS a n
Description: Set acceleration smoothing
Format:
<1Dh> <61h> <n>
Comments: n = 0 to 255: (Default n = 180) Software programmable acceleration smoothing. The print
cycle time is limited to the cycle time of the previous cycle multiplied by the acceleration
coefficient (coefficient = n/256). This improves print quality and reduces noise.
Example: n = 180: Cycle time can’t be smaller than 70% of previous cycle time.
GS D n
Description: Set print Intensity
Format:
<1Dh> <44h> <n>
Comments: n=80h (128d) : (Default). Nominal print intensity
n>80h (128d) : Printout becomes darker
n<80h (128d) : Printout becomes lighter
(n from 0 to 255 (FFh)).