The Eltron Company P310 - Manual (Page 43)

980264-001 Rev. B
3-15
CHAPTER 3
PHASE 1
PHASE 2
PHASE 3
PHASE 4
J10
Stepper
Motor
U28
Q1~8
C
OC
Q1~2
C
OC
Q3~8
RESET
CS MOT (CS7/)
D16~23
D24~31
D16~31
D24~31
1A1
1A2
2A1
1A2
2EN
1EN
VS
1Y2
1Y1
2Y1
2Y2
P+MOT CHARGEUR
P+MOT TETE
P+MOT FILM
P - MOT FILM
U26
U27
MOT TETE
MOT CHARGEUR
MOT FILM 1
MOT FILM 2
BRAKE MOT FILM
CDE ALIM
LATCH
CDE SMART
Vcc
U29 U21
RESET/
VI VO
GND
U28
240
4.7k Q3
Q1
Vdd
24V Tete (Print Head/Status)
K1
4.7k
REF1 REF2
I01
I11
PH1
PH2
I12
I02
RC1
GND
RC2
SENSE1
COMP. IN1
SENSE2
COMP IN2
CS_IO
R_W/ CLK
OC
Q1
Q2
Q3
Q4
Q5
Q6
Q7
SD0
SD1
SCLK
CS/
RS/
SHDN
U20
Vcc
Vcc
SD1 (PP5/PST1)
SCLK (PP6/PST2)
CS POT (PP7/PST3)
Ribbon
Motor
Card Feed
Motor
Print Head
Motor
Daughter
Board
Figure 3-4. Motor Control Circuitry.