Epson LQ 1050 Technical Manual - Page 94

Carriage Movement

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REV.-A Constant Speed Control: d:~e:',:, The carriage motor constant speed depends on the constant speed set time, which varies with the carriage speed mode. Printing is possible when the carriage moves at a constant speed. Table 2-10 shows the set times for constant carriage speed. Deceleration Control: The carriage motor is decelerated in accordance with the deceleration time table. The deceleration time varies depending on the speed mode. The number of deceleration steps for each speed mode are the same as the acceleration steps at the corresponding speed mode. Refer to Table 2-10. High Speed Skip: High speed skip causes the carriage to skip over blank areas at the high speed of 3840 PPS. If a blank area continues for nine characters (normal characters) or more after a print command (CR or LF command) is received, the carriage is controlled to skip the area at the high speed of 3840 PPS. As the carriage comes to the end of the blank area, the carriage speed is lowered so that printing can be started at the speed corresponding to the specified printing mode. Figure 2-40 shows the high speed ~. .-, skip operation. a -.. , .1Carriage Speed acceleration I / I 3840PPs I I 1' Printable Area k i !- 640pps ['L &c*lorailm I I I I I I & Stap pasltlan Chmacter/DIV . > Carriage Movement Figure 2-40. High Speed Skip Operation 2-50

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REV.-A
Constant Speed Control:
The carriage motor constant speed depends on the constant speed set time, which varies with the
carriage speed mode. Printing is possible when the carriage moves at a constant speed. Table 2-10
shows the set times for constant carriage speed.
Deceleration
Control:
The carriage motor is decelerated in accordance with the deceleration time table. The deceleration time
varies depending on the speed mode. The number of deceleration steps for each speed mode are the
same as the acceleration steps at the corresponding speed mode. Refer to Table 2-10.
High Speed Skip:
High speed skip causes the carriage to skip over blank areas at the high speed of 3840
PPS.
If a blank
area continues for nine characters (normal characters) or more after a print command (CR or LF
command) is received, the carriage is controlled to skip the area at the high speed of 3840
PPS.
As
the carriage comes to the end of the blank area, the carriage speed is lowered so that printing can be
started at the speed corresponding to the specified printing mode. Figure 2-40 shows the high speed
skip operation.
Carriage
Speed
.1
3840PPs
k
Printable Area
acceleration
I
i
I
1’
[’L
!-
640pps
I
&c*lorailm
I
/
I
I
I
I
I
I
&
Chmacter/DIV
.
Stap
pasltlan
>
Carriage Movement
de:’,,
:~
:
~.
.-,
a
-.. ,
Figure 2-40. High Speed Skip Operation
2-50