HP Latex 3000 Printer - Manual (Page 244)

6. Clean the contacts.
CAUTION: Do not use the printhead interconnect wiper to clean the nozzles!
Finish off cleaning the printhead contacts
1. Wait until the contacts are dry.
2. Put back the printheads, each in the same slot from which it came.
3. Close the service position window.
4. Turn on the printer in the correct way for maintenance operations: see Turn the printer on on page 143 .
Replace a spindle valve
Risk of trapped fingers
For more safety information, see Safety precautions on page 2
238 Chapter 8 Hardware maintenance ENWW