Service manual

-
PC - l600
Recording paper
The following pa pe r speci ficat ions are re commended to
meet the write and paper feed requi r ements of the ball
point pen.
1) Cut sh. eet
(1) Kind :
Pla in paper
(2) Paper qualitY:
Must be a high-qual ity paper wh ose surface smoothne$$
is more than 25 seconds witho ut oil material on surface .
(3) Thickness:
60 to 110 microns (70 m icrons, preferable) which
equals 52 .3 g/ m
2
.
(4) Width :
A4: 210±2mm
Letter: 215.9±2mm (B Y..±O. 078")
P aper roll : EA4AAl (A4 size paper roll)
EAl LRl (letter size paper roll)
Recommended ball poi nt pen : specifications are as follows.
(1) Kind :
Water based
(2) Size:
¢5 x 23.3mm, +Omm, -O.l mm
(3) Life:
250m or more (when EA4ARI is USED)
(More th an 43,000 characters of 96 ASC II ~har acte r set of
2.4mm heig,t.)
3. A Wiring D iagram
Below is a wiring diagram of the PT M PG Pr inter Circuit
B
oar d.
Carriage PO lltlo n O ",,,,~
"
Z-Motor
X-Motor
r::- __ --,c:= _, _ _ -;::-, Iupside)
O ' lT~ :05;r l ~;t;.A,;': Wof" 17 ';0'
~:d(MO LEXJAP ANCO .. LTD)
F igure VII · 1: Wirin g D iag ram
- 72 -
4. Cir cu it D iagra m
Below is a ci rcu it diagram of the PT MPG Pr inter Cireuit
B oard .
N~o Pha. Color No. C irctJ it
Carr
ia ",
8
Gray
17
0---0 """"---0
I
Position
Detector
A Yellow ..
0
X-mo lO r CO M Bleek
"
I
fCerriege
Movement)
0 A ••
I. 0-
C
White
13 <>-'
8 Blu e 12
~
A Yellow
11
0-
,~
Y -m otor
COM
Bl ac::k
I.
(Paper·
I
Feedln gl
0 Ao. 0
0-
C
White
8
0-
8 Blue 7
<>-'
A Yellow 6
~
Z-motor COM Bleck
5
I
(Pen-Up!
D own &
0 A o.
•
0-
Color·
Chllnlilll
C
White
3 0-
0
Blue
2 ~
A
Yellow
1 ~
F igure VII ·2: Circuit Di fllram
Driv e pulse train
X-axis and Y-axis drive motors (1 ·2 phase excitation)
Motor
MOYing direction
shaft
Step
No.
A 0 C 0
rotating
di rection
X
.. xls V-aldl
1 ON
OFF OFF ON
2
OFF OFF OFF ON
3 OFF ON OFF ON
•
OFF ON OFF
OFF
Counter-
• •
clockwise
Clock·
RewfM
5 OFF ON ON
OFF
wi",
f.od
6 OFF OFF ON OFF
7 ON OFF
ON OFF
8 ON
OFF O FF OFF
The X-axis mot or operates under the 2·2 phase exc ita tion
mode during initial ization.
Z·axis drive motor (2·2 phase excitation)
Step No .
A
8
C 0
Mot()r II.,.ft
MOYing
rotsti ng direction
direction
1
ON OFF OFF
ON
2 OFF ON
OFF ON
Counterclock-
•
3 OFF
ON ON
OFF
wife
Pen down
•
ON OFF
ON OFF