Epson FX-2190 Service Manual

EPSON FX-890/2190 Revision B
Operating Principles Overview 49
Figure 2-5. C524 MAIN Block Diagram
Energy save (ESA
VE) circuit
 Driver element: DTC124X
 Control: Controlled by output port (P_CTRL) of ASIC
Register setting
0: 42 V power voltage rising (Power ON)
{At reset}
1: 42 V power voltage lowering
Simple ecodrive
circuit
90 V constant voltage circuit:(2 circuits each of which is
constituted with 9 pins)
 Type: Constant-voltage dropper circuit (for head
power regression)
 Driver element:FET 2SK3155 (Hitachi)
 Input eco voltage:88.7 V ~ 95.8 V
 Output power voltage:+42 V ± 5% (Controlled to a constant
voltage by Power Supply Unit.)
 Overvoltage detecting circuit (OVP): Detects 120 V or
above as a overvoltage.
Outputs Off signal to the Power Supply Unit.
Table 2-2. Major Elements on MAIN Board (continued)
Elements Location Function

Epson FX-2190 Specifications

General

Maximum print size	A3 (297 x 420 mm)
Color	No
Character pitch	10 cpi
Maximum resolution	240 x 144 DPI
Maximum printing width (columns)	136
Print technology	Dot matrix
Dimensions (WxDxH)	589 x 360 x 157 mm
Standard interfaces	Parallel, USB 1.1
Optional connectivity	Ethernet
Country of origin	Indonesia
Sound pressure level (printing)	55 dB
Mean time between failures (MTBF)	20000 h
Sustainability certificates	ENERGY STAR
Windows operating systems supported	Windows 2000, Windows 2000 Professional, Windows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows 8, Windows 8 Enterprise, Windows 8 Enterprise x64, Windows 8 Pro, Windows 8 Pro x64, Windows 8 x64, Windows Vista Business, Windows Vista Business x64, Windows Vista Enterprise, Windows Vista Enterprise x64, Windows Vista Home Basic, Windows Vista Home Basic x64, Windows Vista Home Premium, Windows Vista Home Premium x64, Windows Vista Ultimate, Windows Vista Ultimate x64, Windows XP Home, Windows XP Home x64, Windows XP Professional, Windows XP Professional x64
Power consumption (typical)	53 W
Operating temperature (T-T)	5 - 35 °C
Operating relative humidity (H-H)	10 - 80 %
Pallet width	1200 mm
Pallet height	1000 mm
Pallet length (UK)	2040 mm
Quantity per pallet	14 pc(s)
Quantity per pallet (UK)	21 pc(s)
Quantity per pallet layer	2 pc(s)
Quantity per pallet layer (UK)	3 pc(s)
Package depth	700 mm
Package width	460 mm
Package height	270 mm
Package weight	11740 g
Quantity per pack	1 pc(s)