Canon LBP-1260, Руководство по обслуживанию

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CHAPTER 2
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 status. This
function is called the self-test. The self test
procedure is as follows:
Self-diagnosis the CPU. Any errors
encountered during this step are
displayed on the Status indication
display as service calls.
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 READY
appears on the Status indication
display. If any operator call or error
occurs, it is indicated by an indicator
and the Status indication display.
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 Status indication display (LCD] as
service calls.
light lit and all digits on the
LCD are displayed. The communi-
cation between the CPU and the IOP
are
checked.
fish will then be displayed and the
check will be performed. While the
are being displayed, the RAM (internal
RAM and expanded RAM SIMM) will
mainly be checked, and
time will be
displayed depending upon the memory
capacity of the expanded RAM. The
following checks are made during this
time.
. Check whether an optional RAM
SIMM is installed (checksum check if
it is installed)
. Internal ROM checksum check
. Internal RAM check
. IOP check
. SCSI controller check
. Optional RAM SIMM check
. Engine check
. SRAM check
the checks end, all are
turned off. This state lasts for about 3
seconds.
READY indicator flashes once.
LCD digits are cleared.
The READY Indicator flashes until
diagnosis ends and the printer goes
into standby.
4) When the printer goes into standby,