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1.6 Electronic Circuit Description
1.6.1 Circuit block diagram
A block diagram of the printer's electronic circuit comprising the control board and carriage board is
shown below.
1.6.2 Power source line block diagram
The printer uses an internal power voltage of 5 V/24 V/3.3 V. The power source line's block diagram is
shown below.
3-5
BJC-6200
Part 3: Appendix
Appendix
Control Board
Carriage board
* Signal name when a
scanner cartridge
is used.
*DIA
*DIK
*RWR
*REN
*RDT
HSEL1A0,1
HSEL1B0,1
HSEL2A0,1
HSEL2B0,1
ODD,EVEN
BENB0,1
HENB0-5
SUBH0,1
DIA0,1
DIK0,1
DC/DC converter
& reset IC
(IC501)
Driver IC
(IC503)
Driver IC
(IC401)
EEPROM (IC402)
2 Kbit
BJ cartridge
or
scanner cartridge
(optional)
Cartridge connector
BJ cartridge
ROM_A0-19
ROM_D0-15
8-Mbit
CE
A0-19
D0-15
48MHz
(X101)
PM
PM
RAM_A0-9
RAM_D0-15
PB1-3
CS0X
RESETX
DRAM
(IC103)
16-Mbit
MA0-9
MD0-15
A0-9
D0-15
XT1
XT2
PC2
PC1
Parallel
interface
(CN304)
Internal temperature sensor
(TH401)
MPU
&
Printer
Controller
(IC101)
Address bus ROM A0 - A19
Data bus ROM D0 - D15
Control
ROM
(C102)
Carriage motor
Paper feed motor
Paper-end sensor
(PS401)
Pick-up roller sensor
(PS402)
HVH
HVDD
*VHLED
*VDD
*DTCK
*ST0
*LNST
*RST
*SCHKR
PO0/INTP100
PO1/INTP101
CR_CLK
CR_STB
CR_DATA
LF_CLK
LF_STB
LF_DATA
PD2
ANI1
POWER switch
(SW401)
RESUME switch
(SW402)
USB
interface
(CN305)
Ink sensor
(CN401
←
Ink sensor)
ST1/TST2
ST2/SOT
ST3
ST4/TST3
ST5/TST4
ST6/TST5
PC0
PO2/INTP102
Front cover switch
(SW403)
PA0
PA1
Power indicator
Error indicator
(LED401)
Home position sensor
(PS1)
HDATA0,1
HCLOCK0,1
HRSTX
HLAT
DIR
Printing position sensor
(CN6
←
Printing position sensor)
P04/PWM1
ANI3
ANI5
PM
ASF motor
Purge sensor
(CN402
←
Purge sensor)
PC3
Figure 3-3 Block Diagram
Q203: Printing position sensor (CN202)
Q401: Parallel interface (CN304)
Q402: HP sensor (CN202)
Q402: Pick-up roller sensor (PS402)
Q402: Paper-end sensor (PS401)
Q402: Purge sensor (CN402)
Q403: Cartridge (CN203)
Q404: Ink sensor (CN401)
Q301: USB interface (CN305)
DC/DC
converter
&
reset
IC
(IC501)
Carriage motor (CN502)
Paper feed motor (CN503)
Q204: Cartridge (CN201)
AC in
ASF motor (CN504)
Thermistor
(TH401)
Motor driver
(IC401)
Power
source
input
connector
(CN501)
AC
adapter
OP amp
(IC201)
EEPROM
(IC402)
MPU
&
Printer
Controller
(IC101)
+24 VDC
+5 VDC
+3.3 VDC
+24 VDC
+24 VDC
+5 VDC
+3.3 VDC
+24 VDC
Motor driver
(IC503)
Control ROM
(IC102)
DRAM
(IC103)
Figure 3-4 Power Source Line Block Diagram
Содержание BJC-6200
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