HP designjet l65500 서비스 매뉴얼

 Troubleshooting

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A critical error has been detected in either the Upper engine PCA. One of the boards may require 

replacement.

The Upper and Lower Engine PCI Boards contains the main real time microprocessors and integrated 

circuits that control the printer with their respective memory and input output systems. This error is 

produced due to an unexpected state of operation on the board which can result in critical failures in the 

processors, memory access, internal short circuits, etc. 

Both boards are connected to main Formatter board via PCI port, the failure could also be due to a total 

communication failure within the engine PCA or even a failure in the Formatter PCA.

A.

Sporadic electrical failure

B.

Failure in any of the connections of the Upper/Lower Engine PCI Board

C.

Failure in either the Upper or Lower Engine PCI Board

D.

Failed Formatter Board

1.

Switch Off the printer, wait 10 seconds, and switch On and restart the printer.

2.

Turn the printer Off and check cables the cables between both the Upper Engine PCI Board and the 

Lower Engine PCI Board and to the Formatter Board.

3.

Check the Upper and Lower Engine PCI Boards are correctly installed Remove the boards if neces-

sary and clean the contacts and plugs in the PCI slots, then re-install the PCI card  page 515.

4.

Perform the diagnostics 2.2.1 Electronics Control  page 295.

5.

Replace the Upper Engine PCI Board  page 515.

6.

Replace the Lower Engine PCI Board  page 517.

7.

Replace the Formatter Board,  page 509.

A critical error communicating with Ink System Main Board has occurred. The Ink System Main Board 

communicates via two lan cables with the Main Interconnect Board. This error is triggered when the Ink 

System does not respond as expected to the commands sent from the Upper Engine PCI Board via the 

Main Interconnect Board.

A.

Sporadic Electrical Failure

B.

ISS Communication data lines failure

C.

ISS power failure

D.

Ink System Main Board failure