EPSON Stylus Pro 4400/4450/4800/4880/4880C
Revision C
Operating Principles
Outline of Control Circuit Board
152
2.3 Outline of Control Circuit Board
This section describes the operation of BOARD ASSY., MAIN, which controls
and drives the Printer Mechanism of Stylus Pro 4400/4450/4800/4880/4880C.
C593 MAIN Board: Stylus Pro 4400/4800
CA00 MAIN Board: Stylus Pro 4450/4880/4880C
NOTE: For circuit board details, refer to "Chapter 7:
at the end of this volume.
Explanation of major elements
Figure 2-62. C593 MAIN Board – Circuit Block Diagram
Table 2-14. Major Elements
Model No.
Location
Function
SDRAM
IC2/23
System memory 64MB (256Mbit x 2)
Flash ROM
IC12
Flash Memory 2MB (1Mbit x 16bit)
• For storage of control program
(firmware)
• Saving of various setting parameters
and control information
SH-3
SH-7709S
IC15
32bit RISC-CPU
• Operational frequency: Internal 96MHz
External 48MHz
E09A54RA
IC17/18
Custom ASIC
• Head drive voltage waveform generation
control
RTC9824SA
IC16
Real-Time Clock
• Sets year/month/day by F/W
• MAIN PCB reset signal formation
E05C25BB
IC19
Custom ASIC
1. Print data processing
• Rasterizer
• Head drive control
2. Mechanism control
(motors and solenoids)
3. Sensor control
TSB43AA82A
IC4
ASIC
• IEEE1394-I/F control
A3958SLBTR-T
IC5
CR Motor driver
• PWM current control method
A3958SLBTR
IC6
PF Motor driver
• PWM current control method
AA6628SEDTR-T
IC7
• ASF/Pump Motor driver
• PG/PO Motor driver
Table 2-14. Major Elements
Model No.
Location
Function
PF motor driver
ASF/pump motor
PG/PO motor
driver
Real-Time Clock
Custom ASIC
ASIC
Custom ASIC
CR motor
PF motor
ASF/pump
motor
PG/PO motor
Custom
ASIC
Head FFC
Lithium battery
BAT1
RTC9824SA
(IC16)
E05C25BB
(IC19)
A3958SLBTR-T
(IC5)
A3958SLBTR
(IC6)
A6628SEDTR-T
(IC7)
TSB43AA82A
(IC4)
(IC12)
(IC15)
(IC2)
(IC23)
E09A54RA
(IC17)
E09A54RA
(IC18)
CR motor driver
Содержание Stylus Pro 4800 Portrait Edition
Страница 1: ...EPSONStylusPro 4400 4450 4800 4880 4880C Color Large Format Inkjet Printer SERVICE MANUAL SEIJ04008 ...
Страница 9: ...C H A P T E R 1 PRODUCTDESCRIPTION ...
Страница 113: ...C H A P T E R 2 OPERATINGPRINCIPLES ...
Страница 156: ...C H A P T E R 3 TROUBLESHOOTING ...
Страница 200: ...C H A P T E R 4 DISASSEMBLY ASSEMBLY ...
Страница 366: ...C H A P T E R 5 ADJUSTMENT ...
Страница 448: ...C H A P T E R 6 MAINTENANCE ...
Страница 457: ...C H A P T E R 7 APPENDIX ...
Страница 463: ...EPSON Stylus Pro 4400 4450 4800 4880 4880C Revision C Appendix Exploded Diagrams 463 7 2 Exploded Diagrams ...
Страница 469: ...PX 6500 E PS ON S TYLUS PR O 4800 No 4 R ev 01 C593 ME CH 011C8 A2 518 520 507 505 513 501 511 508 512 514 517 519 500 ...