Diagnostic Information 2-15
4400-001
Power Service Check
FRU Action
1 Power Supply Plug the machine into an outlet. Check for
approximately 30 V dc at J5 pin 1. If voltage is
incorrect, replace the power supply.
2 Printhead Cables
Paper Feed Motor
Carrier Transport
Motor
Operator Panel
Unplug the printer. Disconnect the printhead
cables and plug in the printer. Look for a symptom
change. Check the failing part for shorts and
replace as necessary.
Repeat this procedure for the carrier transport
motor, paper feed motor, and operator panel.
3 System Board If the symptom has not changed, replace the
system board. Go to the “System Board
Removal” on page 4-21.
To Next Page
Loading...
