Service manual
Product Description
LQ-2070
Sewice
Manual
1.4.5 Self-test Function
Pressing the
Load / Eject
button while turning on the printer puts the printer in LQ self-test
mode. Pressing the
LF/FF
button while turning on the printer puts the printer in Draft self-test
mode. You can stop the self-test temporarily by pressing the Pause button, and you can exit the
self-test mode by turning off the printer. When pages are printed from the
CSF,
the first sheet is
used for scaling the sheet length. Then, the maximum number of printable lines is printed as the
bottom line of the sheet and this number is saved in non-volatile memory as the default page
length. Page lengths are saved individually when a dual-bin
CSF
is in use.
The self-test prints out the following:
0
The maximum number of printable lines (only oncutsheets from the
CSF)
0
The pattern of characters shown in the figure below.
Roman
!
“#$%&‘ ( )*+, -. /0 12345 6789:
;
<-
-> ?@
ABCDEFGH
I
JKLMNopQRs’flJWxyz
[ \ ] “ ‘
abcde
fgh
i
j
k
lrnnopql
!
II
#$%&~
(
)
*+,-./0123456789:;
<=>
?@ABCDEFGH
I
JKLMNOPQRSTU~XyZ
[ \
1“–~abcde
f
gh
i
j
k
lmnOPqr:
“#S%&’ ( )*+, -. /01 23456789
:
;
<=>
?@
ABCDEFGH
1
jKLMNOpQRSTUVWXy
Z
[ \ ]
“—~
abcde
f
gh
i
.j
k
lrnnopq
r.s
1
#$%&’ ( )*+, -.
/0123456789:
;z=>?@-cDEFGHIJKLMNOpQRsTUmyZ[
\]
-
‘abcdefghi
jklrnnopqrstl
$%&’
( )*+, -
.
/012345 6789 : ; <=> ?@
ABCDEFGH
I
JKLMNOPQRSTUVWXYZ
[ \ ] “
‘abcdefgh
i j k 1
mnopqrstul
%&$
( )*+,-./0123456789:;<=>
?@ABCDEFGHI
JKLMNOPQRSTUVWXYZI
\
1“–yabcde
f
ghi
Jk
~
mnoPqrs tuv~
&’ ( ) *+, -./0 123456789: ; <=>
?@ABCDEFGHI
JKLMNOPQRSTU~Xyz [ \
]
“–’
abcdef
ghi
jk
lmnopqrs
t
uvw:
Saris Serif
‘
( )*+, - ./01 23456789:
; <=> ?@
ABCDE
FGH
I J KLMNOPQRSTUVWXYZ [
\
1‘— ‘
abcde
f
gh
i
1
k
1
mnOPq
r
St
uvwx
!
( )•+,-./0123456789 : ;
c=>
?.ABCDE
FGH
I J K
LMNOPQRSTUVWXY Z [ \
1‘—
abc de f
gh
i
1
k 1
mnoPcl
r St
uvwx
Y
;
)
●
+ ,-. /01 23456789: ;
:=>?eABCDEFGli
1
JKLMNOPQRSTUVWx
YZ
[ \ ]
-
‘
abcdef
gh
i
j
k
1
mnopq
rst
uvwx
YZ
●
+ ,-
,/@1234567B9:
;<=>?eABcDEFGHIJKLMNOPQRSTUVWXYZ[\]”–iabcdef9hi
jklmnopqrstuvwxyz{
.<=>?.ABcDEFGHIJKLMNOP(2RSTUVWXYZ[\]
‘–’abcdefghi
iklmnopqrstuvwxyz{
j
+,-./0123456789:
,
,-./0123456789: ,
.<=>?oABCDEFGHIJKLMNOPQRSTUVWXYZ[\]
“–’abcdefghi
jklmnopqrstuvwxyz
(;)’
-./01234~6~89:
;<=>?eABcDEFGHIJKLMNoPoRsTuvwxYZ[\]
‘-’
abcdefghi
jklmnopqrstuvwxyz(
~}-~
Figure l-lOSelf -test Printout
1.4.6. Hexadecimal Dump Function
Pressingthe
Load/Ejectand LF/FFbuttons whiletumingon theprinterputs theprinterin
hexadecimaldump
mode.In
thismode,datareceivedisprinted
outinhexadecimalforrna~along
with the corresponding ASCII characters. The function isuseful tocheckdata received from the
host.
Ifareceivedcodeisnot
aprintableASCIIcharacte~
the printer prints aperiod(.) inthe
ASCIIcolumn.Whenreceived
dataremainsinthebuffe~ thatdataisprintedbypressingthe
Pausebutton.
Hex Dump
1B401B2847o1OO 01 18285501oooA1B 5,5
.@. (G.
...UU.
...U
01
IB
28 43 02 00 78 OF
IB
28 63 04 00 00 00 00
.. (C. .X.. (C.....
00
16 2B 30
OA
09
OA
OA
OA
OA
OA
IB
2E 01 14 14
..+0.
. . . . .
18 00 06 81 00 81 00 81 00
81 00 81 00 81 00 81
. . . . . .
...U.U.U.U.U.U.U
00 81 00 81 00 81 00 81 00 81 00 81 00 81 00 81
.u.u.u.u.ij.u.u.u
00 81 00 81 00 81 00 81 00 81 00 81 00 81 00 81
.U.u.u.u.u.u.u.u
00 81 00 81 00 81 00 81 00 ES 00 02 3F FF EO FE
.Li.u.ij.u.a..z
a-
00 03 03 CO 01 EO FE 00 02 03 80
IE
FE 00 02
IC
..
.L.aE...~.~..
.
00
OE
FA
00
07 03 CO 01
EO
00
00
OF
CO
81
00 E6
..-
~-~.--L~-~
. . .
Figure l-n Hexadecimal Printout
1-32
Rev.A