HP 2420 Service Manual - Page 93
Before performing service, Pre-service procedures, Unplug the power cord and the interface cable.
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Before performing service Follow the pre-service procedures before you perform service. Pre-service procedures 1. Remove all media from the product. 2. Place the product on an ESD mat. If an ESD mat or an ESD-protected workstation is not available, discharge body static and ground the product chassis before servicing the product. 3. Unplug the power cord and the interface cable. 4. Lift the printer off of any installed optional trays. 5. Remove the print cartridge. 6. Remove tray 2. ENWW Before performing service 79
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Before performing service
Follow the pre-service procedures before you perform service.
Pre-service procedures
1.
Remove all media from the product.
2.
Place the product on an ESD mat. If an ESD mat or an ESD-protected workstation is not
available, discharge body static and ground the product chassis before servicing the
product.
3.
Unplug the power cord and the interface cable.
4.
Lift the printer off of any installed optional trays.
5.
Remove the print cartridge.
6.
Remove tray 2.
ENWW
Before performing service
79