HP d640 Installation And User Manual page 35

HCO Messages
Message Remedy
HCO not ready 1. Verify the following:
l
l
l
2. Press clear.
If the error message returns, cycle power on
the printer and HCO. The HCO takes a few
seconds to perform power-up diagnostics.
3. If the error message returns, call your HP
service representative.
a. For more information about types of messages, see the D640 User Manual.
the HCO interface cable is connected to
the printer.
the HCO's power cable is plugged into a
working power outlet.
The HCO's power switch is on.
a
Message type
Call engineer message :
Stops the printer and
takes it offline.
Chapter 2: Using the HCO 31