HP designjet l65500 Manuale Di Servizio

198

Troubleshooting

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Remove each PH, and check that there is some liquid around the dies, following the trace of the CAPs, 
need to look with reflection. The contact has to be done with the liquid element from the PH cleaning 
roller (PEG). Here are some examples: 

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Here is an example of something going wrong with the CAP (too high friction), the shape of the CAP 

is having a too high angle, creating on an angle a possible entry of air. 

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If needed, re-calibrate in ‘X’ (through the scan axis) or in ‘Y’ (through the movement of the capping 

station, parallel to media movement) the CAPs: run the test from diagnostic mode: ‘5.3.4 Service 

Station Cal’. 

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Switch on the printer, after arming the printer, during the boot up sequence, the carriage will move -

> then look at the capping station by opening the front right sliding door, with a ‘maglight’, and 

check the movement of the 3 CAPs when the printer will re-cap the Printheads: check that all 3 CAPs 

are raising up more or less at the same time. 

•

Run from the front panel, from the preventive and maintenance menu (3rd entry from the top), the 

entry ‘clean ink deposit’ 
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When requested, open the right door. 

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Check that the lines just before the drop detectors are well centered in the drop detector. Clean 

these lines, with a cloth (following the explanation within the maintenance and troubleshooting 

guide)