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191
OFFLINE TESTS (CONTINUED)
Printer Speed
A 1 indicates no jumper; a 0 indicates a jumper.
Lights
78
Characters per Second
o
0
Undefined
o
1
120
1 0
40
1 1
80
Light 6 is not used.
Data Storage (PRT12)
A thorough data storage test writes and reads all bit
combinations in all storage positions. The test continues
until the Stop switch is pressed. The Storage Check
light (4) is on if an error occurs.
Address Switches (PRT13)
The address switches test is used with the Cable Thru
feature to check operation of the address switches. Do
not change switch settings while the test is running.
The following example shows the control panel when
the address switches are set to 6:
Switch---4
I
5
6
O
Internal
Check
2
I
7
Graphic •
Data
Check
.
Cleared
Line
Spacing
~
~~~' •• 6
/~<.~
.
8
I
8
O
Transparent
Mode
Status
~
Cancel
·~
..
'1s:"",.~~.. Normal
,~~~
Test
Address 7 (all 3 switches on) is invalid. 'The power on
diagnostics will fail with lights 5, 6, 7, and 8 on during
the cable adapter part, if the address is 7.
Note: Do not leave the external system cable
disconnected when servicing a printer that has the Cable
Thru feature. Other work stations are released from the
series when the cable is disconnected. An adapter (part
7362230) is available for connecting 2 cables together
when it is necessary to bypass a printer. The adapter
should be protected against accidental grounding of the
connection.
1-78
Set Transparent Mode (PRT14)
The set transparent mode test should be used when you
or the customer wish to locate problems or debug
application programs.
When operating in this mode, all data (characters and
formatting control codes) is printed in hexadecimal code
with the character repre-senting the code printed below.
To aid counting and identification, a hexadecimal count
is printed above every 16th character and a vertical bar
above every 8th character starting from the 2nd
character on the left. The 2nd digit on the left column
indicates the print buffer used. One line of data prints
out as 4 lines in transparent mode. Formatting control
codes are not executed but are treated as data. The
default character is printed below the hexadecimal code
for the formatting control codes and other unprintable
characters.
The
Transpa~ent
Mode light is turned on when PRT14 is
selected. It turns off when the Stop switch is pressed.
However, the printer remains in transparent mode and
the light comes back on when the Status switch is
returned to the Normal position. Transparent mode can
be active whether the Status switch is set to Test or
Normal. This allows PRT08 and PRT09 to be printed in
transparent mode. (Select transparent mode first and
then select PRT08 or PRT09.) The 5256 remains in
transparent mode until the Status
swit~h
is moved from
Normal to Test position.
A sample transparent mode printout is as follows:
Buffer
8th Character from Buffer Number
Number
16th Character from Buffer Number
06
I
CC1C4CC2CCCCDDDDOD
1253045567891234D5
AB C DEIFGHIJKLMIN
Line Feed
Carrier Return
Space Character
New Line
In Normal mode, with the SCS control characters
executed, the above would print as:
AB
C DE
N
FGHIJKLM
A part of the verification test is printed in transparent
mode (192).
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