Lcd Hardware Test; Button Test; Dram Memory Test - Lexmark Optra Color 1200 Service Manual

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Once started, this operation cannot be cancelled. Furthermore, all
key presses are ignored while this message is posted.

LCD Hardware Test

Selecting this test will cause the printer to continually execute the
LCD display test. To cancel the test, press Return or Stop.

Button Test

The Button Test is used to verify the operation of each button on the
operator panel. When Button Test is selected, the following screen is
displayed.
While a button is pressed, CL (Closed) is displayed. Likewise, while
a button is not pressed, OP (Open) is displayed. If the wrong
message is displayed, then the button is malfunctioning.
To exit the button test, press Return or Stop. The previous menu
screen is displayed when the button is released.

DRAM Memory Test

The DRAM Memory Test is used to check the validity of DRAM (both
standard and optional DRAM). The test involves writing patterns of
data to DRAM to verify that each bit in memory can be set and read
correctly. When this test is selected from the operator panel, the
following screen is displayed and the printer begins testing DRAM
memory for the first time.
Terminology:
P:###### represents the number of times the memory test has
passed (finished successfully). Initially 000000 is displayed for
######. The maximum pass count is 999,999.
OP OP OP OP
OP OP
DRAM Memory Test
P:###### F:#####
Diagnostic Aids
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