HP designjet l65500 Instruction De Maintenance

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Troubleshooting

If you believe that one or more of the printheads is performing poorly: 

1.

Go to the HP Internal Print Server (IPS) and select: 

“Printer > Printhead cleaning.” 

2.

Press the “Check” button to perform routine cleaning. 

3.

If the problem persists, press the “Print” button in the 

same window to print the following: 

Each color is printed by a single printhead and shows 

the performance of that printhead. If a significant 

number of printhead nozzles are blocked you will see 

missing lines in this display, as shown below. 

4.

In the same window, select any printheads that are show-

ing missing lines, and press the “Hard clean” button. 

5.

When the hard clean has finished, press the Print button 

again to see whether the printheads have improved. 

6.

Perform again a hard cleaning of the suspected Printhead 

(from the IPS), and once the PH cleaning is done, open the 

sliding door and open the PH cleaning roller assembly. 

Also, the following steps should be checked/done by the 

customer (documented in the maintenance and 

troubleshooting guide):

•

Check of the primer:

1.

Trigger a Printhead replacement via the Front Panel.

2.

Open the Printhead latch of the printhead color that is not priming.

3.

Close again the latch. We recommend a little oil or grease (or simple wetting) on both o-

rings to improve the seal once the printhead is engaged. 

On the LX600/LX800: the correct grease is provided within the cleaning kit, with the greasing 

procedure documented in the maintenance and troubleshooting guide. For the L65500, use 

the grease Molicote 44, available through the Gears kit page 467. 

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