Radio Shack TRS-80 Service Manual page 44

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44.
Power consumption
Print pauern
ASCH 64 character set
ASCH 64 character set (excluding CR)
ASCII
64
chancier set
ASCII 64 character set
0 5" printed in 5 columns
Paper feed action
X·axis forward and backward
45° line drawing
45° dot draw.ing
S
=
O;Small character
S
=
I ;
Standard charactor
4-5.
Colo
r position sensing switch
I.
Operating voltage: DC 24V, max.
2. Operating curreot: IOOmA, max.
3. Contact resistance: I
SOmn. max.
5 . Durability
No. Item and test method
I
Life
6.5 million characters ASCH
64
character set
are continuously printed
in
the minimum scale
Scale
S=O
S= l
S=l
S=l
S= I
-
-
(L=O)
(L= l)
(S=O). At any time during the test (ie. I, 2, 4, and
6.5 million characters), appearance, operating
conditions, and print quality a.re tested.
2
Pen life
Continuous operational tes!
Is
¢alfied out with
the new pen in use.
Do not sale this PDF !!!
-42-
Current
Power
Supply
consumption
consumption
voltage
(rnA)
(JI)
4.8V 500-550
2.4"'2.6
4.8V 4-00-450 1.9--2.2
4.2V 340-370
1.4-1.6
5.8V 500-580
2.9-3.4
4.8V 385 1.8
4.8V 260 1.2
4.8V 180 0.9
4.8V 490 2.4
4.8V 790 3.8
Test item
Specification
I . Appearance Life: 6.5 mdlion
characters
2. Print quality Must be good.
!.
Ink life Must be able to drawn
250 me!ers.