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Troubleshooting
1-13
HP DesignJets 500, 510 and 800 Series Printers Service Manual
Using the Boot-Up Sequence to Troubleshoot
When you Power On the Printer, the Printer performs the Boot-Up
sequence which initializes the major components of the Printer. If
for some reason the Boot-Up sequence fails because a component
has failed to initialize, the following explanations will help you to
locate the failing component:
During the first phase of the Boot-up sequence (all the squares turn
grey) the Printer is initializing the Operating System. If for some
reason this sequence fails, try the following:
1 Switch the Printer Off and wait a few minutes. Switch the Printer
On again and check if the initialization sequence is successful.
2 If the initialization sequence fails again, replace the Electronics
Module Page 8-24.
During the second phase of the Boot-up sequence (all the squares
turn black) the Printer is initializing various components (too
numerous to mention). In normal circumstances, if a component fails
during this sequence a System Error will appear and you should refer
to Chapter 2 -
System Error Codes
. The following information
explains what is being initialized as each square turns black:
Initializing various components of the Main PCA.
Initializing various components of the Main PCA.
Initializing a portion of the Firmware.
Initializing various components of the Main PCA.
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