REV.-A
5.3.3
Printer Mechanism Unit Repair
If trouble occurs with the printer mechanism,
Refer to Sections 4.2 DISASSEMBLY AND
adjustment of parts.
troubleshoot it as described in Table 5-9.
ASSEMBLY and 4.3 ADJUSTMENT for replacement and
Table 5-9. Printer Mechanism Unit Repair
Problem
Symptom
Cause
Checkpoint
Solution
When the
The carriage
The carriage
. Measure each coil resistance of the
printer
operates
m o t o r i s
carriage motor.
is
abnormally.
defective.
Resistance value : 2.8
initialized at
(at 25
power on, the
. Turn the carriage motor shaft manually,
home position
and check if the motor rotates smoothly.
error
occurs.
The timing
. Check that the timing belt is inserted
Check the
belt is
correctly into the bottom of the carriage
portions
(see Section 4.2.4. 5).
around the
●
Check the timing belt for any
timing belt
ity.
for any
abnormality,
or replace
the timing
bit.
The CR HP
Connect the CR HP sensor to the
Replace the
sensor is
board, turn the printer power on, and
CR HP
defective.
check that the buzzer indicates the home
ser.
position error (See Section 1.9),
Color select
The
Measure each coil resistance of the
Replace
operation is
motor is
motor.
the
abnormal.
defective.
Resistance value : 158
(at
motor.
coil)
The
Connect the
sensor to the
Replace the
sor is
board, turn the power on, and check that
sensor.
the buzzer indicates the home position
error (see Section 1.9).
is
A specific
The printh-
. Measure each coil resistance of the
Replace the
dot is
ead coil is
(see page 5-11).
defective.
. Check the
wires for any
Printing color
The platen
. Check the platen surface smoothly.
Replace the
density is not
and the car-
.
Adgust the parallelism of the
platen.
uniform.
guide
gap (see Section 4.3.1.1).
shaft are not ,
parallel.
5-22
Содержание LQ-1060
Страница 1: ...EPSON TERMINAL PRINTER L Q 8 6 0 1 0 6 0 TECHNICAL MANUAL ...
Страница 5: ...REVISION TABLE REVISION DATE ISSUED I CHANGE DOCUMENT I I 1st issue I v ...
Страница 68: ...cc o REV A N N n 1 cc b I al cc u co n4 2 1 Figure 2 14 Main Switching 2 21 ...
Страница 79: ...REV A Table 2 20 State of Module 1 1 I W stay E H H L H d O s H H 4 2 32 ...
Страница 203: ...Figure 5 6 MONPS MONPSE Board Voltage Waveforms 5 17 ...
Страница 204: ...REV A Fiaure 5 6 MONPS MONPSE Board Voltage Waveforms z L 5 18 ...
Страница 205: ...Figure 5 6 MONPS MONPSE Board Voltage Waveforms 5 19 ...
Страница 217: ... n 3 m I BUS CONTROL 1 LJ Pc II SYSTEM CONTROL I I L 1 I PERIPHERAL BUS IIF u lJ Figure A 2 PD78213 Block Diagram A 3 ...
Страница 248: ...REV A A 3 DRAWINGS 3 J32 J TI g 4 Figure A 27 MONPS Board Component Layout A 34 ...
Страница 249: ... J30 33r J32 d m b13 G a TI 7 IC20 r El m J24 C2 L cl mow B L U E u Figure A 28 MONPSE Board Component Layout A 35 ...
Страница 250: ... 2 1 1 1 1 I A b 2 Ozaz 1202 C O ZZH Z UOEE vu I 1 Figure A 29 MONPS Board Circuit Diagram ...
Страница 251: ...REV A 1 UXZO xl OX 9 xl Onz b 8M 118 en A N J 93 T 818 Figure A 30 MONPSE Board Circuit Diagram A 37 ...
Страница 252: ...L t g Figure A 31 JUNMM Board Component Layout A 38 ...