Epson FX-2190 Service Manual

EPSON FX-890/2190 Revision B
Troubleshooting Troubleshooting for Individual Units 64
3.3 Troubleshooting for Individual Units
3.3.1 Main Component Checking Point
The following components can be checked with a simple measurement tool, such as a
multi-meter, easily.
 Motors
Note “*”: Set the meter to ohms. Then disconnect the Motor from the Main Board and check it
with printer power off.
 Printhead
 Test Method : For example, place one lead on pin C1 and the other lead on
Test pin 1 to check #1 pin of the Printhead solenoid. Test
pin numbers match the printhead solenoid (dot wire)
numbers.
NOTE: Set the meter to ohms. Then disconnect the Motor from the Main Board
and check it with printer power off.
 Specifications : 8.19 ± 0.8 Ω (at 25°C)
Note : 1~18: Wire numbers (Refer to “Figure 2-3“ in Chapter 2 for wire numbers.)
C1~ C8: Common terminals
T: Thermistor terminal
N: Not used
(The contact of the connector and FFC is positioned at the bottom side of the
connector.)
Figure 3-2. Printhead Connector Pin Assignment
Table 3-15. Motor Coil Resistance Test Points
Motor Test Pin Number Test Method*
Meter
Reading
PF Motor
(CN13)
1 and 3,
2 and 4
Place one lead on pin 1 (pin2) and the other
lead on pin3 (pin 4) on each of the test pins
to check the two motor phases.
16.0 Ω ± 10%
(at 25 °C per
one phase)
CR Motor
(CN12)
Common pin: 5
Test pins: 1, 2, 3
and 4
Place one lead on pin 5 and the other lead on
each of the 4 test pins to check the two motor
phase.
2.7 Ω±10%
(at 25°C per
one phase)
Table 3-16.
F R
Common
Line
Corresponding Wires
Common
Line
Corresponding Wires
C1 1, 7, 13 C5 2, 5, 11
C2 9 C6 3, 15
C3 10, 18 C7 16, 17
C4 6, 12 C8 4, 8, 14

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)