Panasonic UF-580 Service Manual page 158

Laser Unit (LSU) Error Detection
nPRNT
Print Start
nPMON
(CN69-3)
Tetragon Motor ON
nPMRY
(CN69-2)
Tetragon Motor Ready
E31
nPMRY
Tetragon Motor does not
reach constant speed
during wake up state.
E32
nPMRY
Tetragon Motor does not
maintain constant speed.
nVIDEO
(CN68-6)
Laser Timing Signal
nHSYNC
(CN68-2)
Laser Timing Detection
E36
nHSYNC
(CN68-2)
Can not detect
Laser Timing
Motor ON 3 sec
nPMRY does not go low for more than 2 sec during 3 sec to
20 sec after nPMON goes low.
nPMON nPMRY:ON
nPMRY goes high 4 times during printing.
1.7 ms (400 dpi)
1.1 ms (600 dpi)
nHSYNC timing signal is less than 60% of nVIDEO signal.
158
Normal Condition
20 sec
OFF OFF
Normal Condition
OFF OFF