EPSON EPL-N1600
Chapter 2
Operating Principles
Rev. A
55
2.1.4 Main Control Circuit
The main control circuit of the EPL-N1600 is the C258MAIN Board and
it consists of two sections: the main control circuitry and the engine
control circuitry (MCU). The following tables describe the main
components of each section.
Figure 2-3. CIRCUIT BLOCK DIAGRAM - C258MAIN BOARD
Table 2-2. C258MAIN BOARD - Main Control Circuit
Table 2-3. C258MAIN BOARD - Engine Control Circuit (MCU)
Component
Location
Operation
CPU (VR4310)
µPD30200GD
IC1
A RISC CPU running at 150MHz. Controls
the board’s main control section.
ASIC E05B41BA
IC10
Controls the following:
• Memory access (RAM/ROM)
• DMA (I/O, Video)
ASIC E05B40BA
IC15
Controls the following:
• External interfaces
• Communication with the operation panel
• Interrupts
ASIC E05B28KA
IC16
Controls the following:
• Video data generation
• RIT/PGI operation
• Video interface (communication with the
engine control section)
DRAM
IC19-22
Two 16Mbit ((16) modules. Serve as the
system’s standard memory.
Mask ROM
IC17/18
8Mbit mask ROM. Stores font dataand IPL.
Program ROM
CN5
Either C215PROG (Flash ROM version) or
C215PROG-B (Mask-ROM version) ROM-
DIMM module is installed in ROM-DIMM
socket CN5.
EEPROM (NM93C86A)
IC13
16Kbit EEPROM which saves printer
configurations and status.
Component
Location
Operation
CPU (PD78054)
IC201
Engine control CPU. Controls engine
components (implements printing) in
accordance with video data from the main
control section.
ASIC (PD65622GF)
IC202
Controls the video interface with the main
control section. Also controls EEPROM.
EEPROM
(AT93C45)
IC203
Capacity is 16Kbit. Stores setup parameters
related to engine control.
Содержание EPL-N1600 Option
Страница 1: ...EPSONEPL N1600 A4 Network Laser Printer 4009770 ...
Страница 13: ... PRODUCTDESCRIPTION ...
Страница 36: ... OPERATINGPRINCIPLES ...
Страница 50: ...EPSON EPL N1600 Chapter 2 Operating Principles Rev A 51 ...
Страница 55: ... TROUBLESHOOTING ...
Страница 97: ... DISASSEMBLYANDASSEMBLY ...
Страница 161: ... ADJUSTMENT ...
Страница 162: ...EPSON EPL N1600 Chapter 5 Adjustment Rev A 164 No specific adjustment required on this printer after repair ...
Страница 163: ... MAINTENANCE ...
Страница 165: ... APPENDIX ...
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Страница 201: ...EPSON EPL N1600 Chapter 7 Appendix Rev A 203 MCU 1 2 Holder Electrical 3 4 PWBA Hotaru ...
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Страница 203: ...EPSON EPL N1600 Chapter 7 Appendix Rev A 205 CONTROLLER 1 Controller Assembly C258MAIN BOARD ...
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