Sharp XE-A40S

XE-A40S
4 – 2
1.2. Driving steps
RECEIPT MOTOR
* When stopping the motor, all energizing to the phase is turned off
by giving the rush current of 10ms to the same phase as a final
excitation phase. → Turn all RAS ~ RDS and JAS ~ JDS into L.
No energizing should be allowed at lease 30 ms after stopping the
motor before restarting.
When the motor is started, the rush current of 10ms is given to the
first excitation phase.
2. HEAD CONTROL
Related PORT
* When turning on or off the printer power supply, make sure to turn /
STB1, 2, 3, 4 to "H".
* Do not turn on without paper.
* THERMAL HEAD power supply control : Turns ON when P81= "H";
turns OFF when "L". (The power supply for HEAD and STEPPING
MOTOR is shared). When printing is finished (when the motor is
stopped) Athe power should be turned OFF.
* Before printing or feeding paper, perform A/D conversion in ** ms
after the printer head is turned ON and make sure the voltage is
stable.
(The power supply of the printer head should be turned ON and
OFF by using the regulator IC.)
[4] I/O
Driver IC input
(CPU output)
Motor driving signal
STEP RAS RBS RCS RDS /
RPFA
/
RPFB
/
RPFC
/
RPFD
1HLLHL H H L
2LHLHH L H L
3LHHLH L L H
4HLHL L H L H
Driver IC input
(CPU output)
Motor driving signal
STEP JAS JBS JCS JDS /
JPFA
/
JPFB
/
JPFC
/
JPFD
1LHHLH L L H
2LHLHH L H L
3HLLHL H H L
4HLHL L H L H
HEAD: 832 dots in all. Printable range: 384 dots at receipt side;
384 dots at journal side
No. CPU PORT Signal to be used
30 TXD2 SO
29 RXD2 SI
28 CLK2 PCLK
93 P103 /STRB1
92 P104 /STRB2
91 P105 /STRB3
90 P106 /STRB4
89 P107 LATCH
21 P81 VHCOM
/STB1: 1 ~ 288dot: 288 dots in all
/STB2: 289 ~ 432dot: 144 dots in all Total 864 dots
/STB3: 433 ~ 576dot: 144 dots in all
/STB4: 577 ~ 864dot: 288 dots in all
M16C/62 PORT Memory space: Normal mode
Processor mode: Use it in Micro processor mode (Separate BUS/width=8bit)
PORT PIN No. I/O Pin name Signal name Initial
value
OFF
MODE
Function
P00 88 I/O D0 D0 OUT L
P01 87 I/O D1 D1 OUT L
P02 86 I/O D2 D2 OUT L
P03 85 I/O D3 D3 OUT L
P04 84 I/O D4 D4 OUT L
P05 83 I/O D5 D5 OUT L
P06 82 I/O D6 D6 OUT L
P07 81 I/O D7 D7 OUT L
P10 80 O P10 RAS L OUT L Receipt paper feed A
P11 79 O P11 RBS L OUT L Receipt paper feed B
P12 78 O P12 RCS L OUT L Receipt paper feed C
P13 77 O P13 RDS L OUT L Receipt paper feed D
P14 76 O P14 JAS L OUT L Journal paper feed A
P15 75 O P15 JBS L OUT L Journal paper feed B
P16 74 O P16 JCS L OUT L Journal paper feed C
P17 73 O P17 JDS L OUT L Journal paper feed D
P20 72 O A0 A0 OUT L
P21 71 O A1 A1 OUT L
P22 70 O A2 A2 OUT L
P23 69 O A3 A3 OUT L
P24 68 O A4 A4 OUT L
P25 67 O A5 A5 OUT L
P26 66 O A6 A6 OUT L