Epson LQ 1050 Technical Manual - Page 106
Epson LQ 1050 - B/W Dot-matrix Printer Manual
View all Epson LQ 1050 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 106 highlights
REV.-A & Half-dot Protection Circuit The half-dot protection circuit is located in the gate array (E05AI 5HA). It ignores any drive pulses received after the dot wires of the printhead (see Figure 2-3) have been driven for the maximum allowable drive time, to prevent the printhead from being damaged. t I I I I r I I 1 I I 1 I I I 1 I 8 I I I I I I I I From : m; I I I 1 1 I I I I Buffer N v I +- ~J Holf dot Protect Ion Circuit 9uffer It A ~Dd III To Prlntheod Driver I1IItI11 iI i- I I 1 I I I I , I L - - - - - - - - - - - - - - - - - -G-A-(-E-0-5-A-1-5-H-A- )- - - - - - - - - - - I1 J Figure 2-52. Halfdot Protection Circuit Block Diagram 2-62
REV.-A
Half-dot Protection Circuit
The half-dot protection circuit is located in the gate array
(E05AI
5HA). It
received after the dot wires of the
printhead
(see Figure 2-3) have been
allowable drive time, to prevent the
printhead
from being damaged.
&
ignores any drive pulses
driven for the maximum
------------------------------------------------------
t
#
I
I
I
I
I
I
I
I
1
I
I
I
I
From
:
N
m;
v
I
I
I
1
1
I
I
Buffer
I
+-
I
I
~J
I
1
I
I
I
L
------------
r
I
I
1
I
1
8
I
I
I
I
I
I
Holf
dot
9uffer
I
I
Protect Ion
To
Prlntheod
Circuit
It
Driver
I
1
I
A
I
t
I
1
1
~Dd
i
I
I
I
I
I
GA(E05A15HA)
1
,
----------------------------------------J
i-
Figure 2-52.
Halfdot
Protection Circuit Block Diagram
2-62