IV-45
2.3.2
Circuit
(1) CPU
block
•
Model name: TMPR4955BFG-300,
MIPS 64bit RISC CPU manufactured by TOSHIBA
•
Clock speed: 100MHz (external) / 300MHz (internal)
•
Cache memory: 32KB (Command cache) / 32KB (Data cache)
•
Bus width:
32bit (external) / 64bit (internal)
Internal Floating Point Unit (FPU)
•
Appearance: 160-pin
QFP
(2) ASIC
block
•
Model name: MB87M4240 manufactured by Fujitsu
•
Appearance: 576pin
BGA
•
Functions:
∗
Controls CPU
∗
Controls memory
∗
Controls interrupts
∗
Timer
∗
External interfaces (Centronics, PCI, IDE, Compact Flash, USB)
∗
Engine interface (Video signal control, LVDS)
∗
Supports Software
(3) ROM block
The ROM stores the CPU control program and font data. ROMs used are an
8Mbytes masked ROM, and an 8 Mbytes flash ROM which can be rewritten
on the board.
<Masked ROM>
•
Access time:
less than 100nsec.
•
Appearance: 48pin
TSOP
<Flash ROM>
•
Model name: MBM29DL32BD-90 manufactured by Fujitsu
•
Access time:
less than 90nsec.
•
Appearance: 48-pin
TSOP
Содержание HL-2700CN Series
Страница 16: ...viii 3 Rating Label 6 0A 11 0A For Europe For US ...
Страница 18: ...CHAPTER I PRODUCT OUTLINE ...
Страница 27: ...CHAPTER II SPECIFICATIONS ...
Страница 39: ...III 1 CHAPTER III INSTALLATION ...
Страница 53: ...CHAPTER IV STRUCTURE OF SYSTEM COMPONENTS ...
Страница 84: ...IV 31 Layout of Clutches and Solenoids 1 2 3 4 5 6 7 8 9 10 Fig 4 30 ...
Страница 90: ...IV 37 ...
Страница 93: ...IV 40 c Interface Circuit Printer side Table 4 1 Interface Circuit ...
Страница 102: ...IV 49 Main PCB circuit Diagram 1 7 IV 49 CODE B512168CIR 1 7 LJ9515001 NAME ...
Страница 103: ...IV 50 Main PCB circuit Diagram 2 7 IV 50 CODE B512168CIR 2 7 LJ9515001 NAME ...
Страница 104: ...IV 51 Main PCB circuit Diagram 3 7 IV 51 CODE B512168CIR 3 7 LJ9515001 NAME ...
Страница 105: ...IV 52 Main PCB circuit Diagram 4 7 IV 52 CODE B512168CIR 4 7 LJ9515001 NAME ...
Страница 106: ...IV 53 Main PCB circuit Diagram 5 7 IV 53 CODE B512168CIR 5 7 LJ9515001 NAME ...
Страница 107: ...IV 54 Main PCB circuit Diagram 6 7 IV 54 CODE B512168CIR 6 7 LJ9515001 NAME ...
Страница 108: ...IV 55 Main PCB circuit Diagram 7 7 IV 55 CODE B512168CIR 7 7 LJ9515001 NAME ...
Страница 110: ...IV 57 Layout of Connector Pin Assignment Power Supply Unit Fig 4 40 ...
Страница 118: ...IV 65 1 MCTL P W B I1CN IOD P W B DCN1 2 MCTL P W B I2CN IOD P W B DCN3 ...
Страница 124: ...IV 71 30 Duplex Connector 31 Lower Feeder Connector 32 DCN2 IOD 33 DCN8 IOD LaserFan ...
Страница 125: ...CHAPTER V CONTROL PANEL OPERATION ...
Страница 171: ...CHAPTER VI PERIODIC MAINTENANCE ...
Страница 197: ...CHAPTER VII DISASSEMBLY ...
Страница 200: ...VII 3 Table 7 1 Table of Applicable Screws ...
Страница 257: ...CHAPTER VIII TROUBLESHOOTING ...
Страница 316: ...VIII 59 5 IMAGE FAILURE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 ...
Страница 317: ...VIII 60 15 a 15 b 16 17 18 19 20 21 22 23 24 25 Fig 8 2 ...
Страница 346: ...A 4 6 Transfer Unit X X X X X X 7 1 2 3 Location DATE MONTH SERIAL NO YEAR ...