HP 33440/HP
33449 COMBINED
SERVICE MANUAL
3"6. SELF TESTS
General
Three types of self-test routines, other than Service Mode tests covered in the nefi section, mn be
performed on the HP 33440 and HP 33449 printers. These self-test routines are
05 SELF TEST.
04 SELF TEST.
H 15 ENGINE TEST (Test Print).
05 SELF TEST
Each time the printer is powered on or the Control Panel
[PRINT
FONTS/TEST)
key is held down for
2-to-5 seconds, 05 SELFTESTis displayed. (If the key is held down longer, 04 SELFTESTwiH be
displayed.) The printer will then execute a self test that verifies operation in the following areas:
Program ROM.
Internal Font ROM.
E RAM on the Interface/Formatier PCA and any optional (accessory) RAM PCAS.
E DRAM Controller.
N Interface/Formatter logic.
Ml LEDs.
If the seUtest was explicitly invoked, valuable information about page coun~ date codes, and
configuration selections mn be obtined from the first portion of the resulting printout. The
information is summarized in Figure 3-7 for the HP 33440 and in Figure 3-8 for the HP 33449.
When the printer is first switched on, only the non-printing portion of the self test is performed.
A self test must be requested from the Control Panel or through an 'Cz command to get a
self-test printout. When the printing portion of the self test begins, the message 06 PRINTING
TESTis displayed. The self test maybe aborted by pressing the [~]
(cONTINuE/REsETj,
or
(PRINT
FONTS/TESTj
keys. The numeric portion of the message will flash while the self test is being
aborted.
~Q~~
The self test is printed in the default media size in the default orientation. The
Q
HP 33440 self-test printout is an example of 12% print coverage (see Figure 3-7).
P
,,P
~.
)
The HP 33449 self-test printout is an example of 10% print coverage (see
-.~,'..
Figure 3-8). This may be usefnl as a reference in determining toner use. A typical
EP-S Cartridge should have adequate toner to print 4000 sheets of paper at an
average
5~0
coverage.
Self-Test Printout Information
The Self-Test Printout contins valuable information such as page count, firmware date codes,
Control Panel settings, and any instiled options.
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