Canon LBP-860, Руководство по обслуживанию

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E. Self-test
When the power is switched on, the printer
executes the self-diagnosis program for the
video controller to check the video
controller and control panel states. This
function is called the self-test. The self test
procedure is as follows:
1) Self-diagnose the CPU. Any errors
encountered during the test are
displayed on the Status indication
display as service calls.
2) After the CPU completes a
diagnosis. the video controller will also
execute a self-diagnosis. Any errors
encountered here are also displayed on
the indication display (VFD] as
service calls.
light lit and all digits on the
VFD are displayed. The communi-
cation between the CPU and the IOP
are subsequenently checked.
fish then be displayed and the
will be performed. While the fish
being displayed. the RAM (internal
RAM and expanded RAM SIMM) will
mainly be checked. and the time will be
displayed depending upon the memory
capacity of the expanded RAM. The
following checks made during this
-Check whether an optional RAM
SIMM is (checksum check if
it is installed)
Check internal ROM checksum.
. Internal RAM check
.
check
. SCSI controller check
. Optional RAM SIMM check
Engine check
check
the checks end. all are
turned off. This state lasts for about 3
seconds.
READY indicator flashes once.
VFD digits are cleared.
3) The READY indicator flashes until
diagnosis ends and the printer goes
into standby.
4) When the printer goes into standby,
t h e R E A D Y i n d i c a t o r , ONLINE
indicator, and the paper pick-up mode
indicator light, and “00
AUTO”
appears on the Status indication
display. If any operator call or error
occurs. it is indicated by an indicator
and the Status indication display.
a hard disk drive is connected to the
printer, the hard disk drive state is
checked during the self-test.
If an
error is detected in the drive (for
example, the power was turned off
during access to the drive), it is
recovered automatically during the
test period (by the simple recovery
program). See Section V of Chapter 1
for details of the simple recovery
program.
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