OKIDATA ML320 Turbo Service Manual page 112

Alarm Alarm
Category
Spacing Spacing
Alarm alarm
Spacing Print Head
Alarm homing
alarm
Print Head Print Head
Alarm A/D alarm
Print Head Print Head
Alarm Gap A/D
alarm
X = LED Blink (200ms ON, 200ms OFF)
All other LED Displays: = LED lights up
Alar LED Remarks
m Display
X PROP, Space IPT is
HSD not occurred
within in
specified
timing.
X PROP, Print head
UTL does not
reach to the
home
position.
X 10, 20 Thermister is
open, short
with 0V or
short with
+5V.
X 10, 20, Print Head
HSD Gap Signal
open
Troubleshooting
* Replace space motor.
* Replace P.H. cable.
* Replace Control/Power
Supply Board.
* Check the mechanisms
if load is too much.
* Replace space motor.
* Replace P.H. cable.
* Replace Control/Power
Supply Board.
* Check the mechanisms
if load is too much.
* Check the P.H.
Connection.
* Replace Print Head.
* Replace P.H. cable.
* Replace Control/Power
Supply Board
* Replace P.H. cable.
* Replace Space Motor
Assy.
* Replace Control/Power
Supply Board