HP 2566C - Manual (Page 72)

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The HP-IB cable loading is set at the factory to match a single cable
length appropriate for the interface option selected. To match the HP-IB
loading to a different length cable, call your Hewlett-Packard Service
Representative.
Test
A self-test is used to verify the printer’s operational status. This self-test
function can either be run from the Operator Control Panel or remotely
using escape sequences. See the HP256X Printer Family Technical
Reference Manual, 02564-90905, for details. You can run the standard
self-test or choose a speciric sub-test (individual sub-tests can only be
executed from the Operator Control Panel). It is also possible to have
the standard self-test or any of the sub-tests run continuously.
The printer must be “off-line” (“on-line” light not illuminated) to
execute a self-test from the Operator Control Panel. If any error number
appears in the display window, the self- test will not print.
Standard Self-Test
To perform the standard self-test (excluding interface tests), depress
the
(TEST
I key once to enter the TEST mode and then press
( enter
1 to
begin the test. To run a continuous standard self-test, press and hold
down the (
test
) key for more than two seconds (until the number “4”
appears in the display) and then press
( enter
]. You can exit a self-test
any time by pressing either the (
test
) or
( on line )
key.
Note
^ After you press the
( test )
key to start a self-test, it takes
a
few seconds
before the printer starts to print. While the self-test is running, the
right decimal point blinks in the display window.
In the back of this manual there is a simulated copy of a standard
two-page self-test printout. This printout lists power-on time and print
time in hours; interface configuration information; the date code of
some printed circuit assemblies; all the printer’s installed character sets,
bar codes and graphics; and various characters to check print quality.
The graphics part of the self-test is printed in the density set from the
Operator Control Panel.
When the test is complete and there are no errors, the printer returns to
the STATUS mode. If an error occurs during the test, an error number
flashes in the display window. Refer to page 5-9, “Test Failure,” for
more information.
PRINTER CONFIGURATION 5-7