
Table 5-9. Printer Mechanism Unit Repair
Problem
Symptom
Cause
Checkpoint
Printing is
Printing pressure does
The PG
Check that the PG sensor opens
Replace
abnormal.
not change after the
is
when the head adjustment lever
PG
head adjustment lever
is set to any of the Ist to 3rd
is set to the copy mode
position, and it closes when set
position (the carriage
at any of the 4th to 8th position.
speed is not deceler-
ated).
Paper feed-
Paper is not fed
T h e p a p e r
●
Measure each coil resistance
Replace
ing is
smoothly.
feed motor is
of the paper feed motor.
paper
nal.
defective.
Resistance value : 59
motor.
(at
. Turn the paper feed motor
shaft manually, and check if
the motor rotates smoothly.
Paper feed pitch is
Adjust the gear backlash of the
not uniform.
paper feed motor pinion (see
Section 4.3.1. 3).
The platen and car-
Adjust the parallelism of the
riage guide shaft B
platen gap (see Section 4.3.1. 1).
are not parallel.
The platen surface is
Replace
not flat.
platen.
Although the printer is
The
Check that the F/T sensor opens
Replace
set to the pull tractor
is
when the paper release lever is
F/T
feed mode and the
set to the friction feed mode, and
paper is loaded, the
it closes when set to the tractor
paper is not ejected
feed mode.
by pressing the
LOAD/EJECT switch.
The printer enters ON
The PE
Check that the PE sensor closes
Replace
LINE at power on
is
when the paper is ejected, and it
PE senso
without the paper
opens when the paper is loaded.
being loaded (DIP
SW2-8 : OFF).
5-23
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 ...