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Texas Instruments 880 - 4 Problem Analysis; Test Mode; The Status Report

Texas Instruments 880
102 pages
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This section describes the test mode and the
status report.
It
also describes troubleshooting
procedures
to
help you identify and correct any
minor operating problems.
4.1
TEST
MODE
The following functions can be performed from
the control
panel (Figure 4-1) while the printer
is
in
the test mode.
Printing the status report
Printing the barberpole test
Section 4
Problem Analysis
4.1.1
Status
Report
Follow these steps
to
enter the test mode and
print the status report:
1.
Open the printhead door.
2.
Press
the
Command
key. The
Normal
indicator turns
off
and the
Command
indicator turns on.
3.
Press
the
Test
key. The
Test
indicator
turns on. The printer immediately prints
the status report.
The following example shows a sample status
report.
Test Mode
Key sequence for entering test mode
and printing status report:
1.
Press
to return
to
normal mode.
2.
Press
to stop barberpole print.
Print
Features
F~HO"
LJr(ID12
0 A B
16
C
12
D
10 F E
Draft
~
Programmable
Test
[de
Change
1.
Test
Operations:
1.
Printing status report.
2.
Printing barberpole test.
'---_I
,--I
_----'
Command 2.
Paper
Out
0
0
Error
On
~~i~~
t
Form
0
line
Feed
Power
o
I]
[bdTab
SetTopb]
S"
of
Form
Tabb]
[l
lJ
Tab
-Cleat
Line
I)
IJ
Feed _
Reset
~~i~~
line
Feed
1.
Press
to
print barberpole pattern when
printer is
off
line.
2.
Press
to
send barberpole pattern
out
serial port when printer
is
on line and
in serial communication mode.
2222627-23
Figure
4-1.
Test
Mode
4-1

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