Interleaf EP5000/EP4000 TROUBLESHOOTING
97.04.01
T-9
Sym-
bol
Parts/Signal Name
Dis-
play
IC
No.
Port
No.
I/O
Operation Charac-
teristics/Panel Dis-
play
CN/PJ
No.
Page
H or 1
L or 0
CNT2
Plug-In Counter/REM
1/8
IC1A
P44
f
Normally
When
count-
ing
PJ28A-9
↑
Plug-In Counter/Set
3/8
IC5A
BPC3
Out of
position
In
position
PJ28A-7
H1
Fusing Heater Lamp
1/8
IC1A
P57
f
OFF
ON
PJ33A-2
H3
Paper Dehumidifying
Heater
1/8
IC1A
P45
f
ON
OFF
PJ4A-5
RY1
Main Relay
1/8
IC1A
P46
f
ON
OFF
PJ4A-3
LA1
Exposure Lamp/AVR
REM
1/8
IC1A
P61
f
OFF
ON
PJ8A-13
LA2
Main Erase Lamp/
REM
2/8
IC4A
BPA1
f
OFF
ON
PJ12A-3
LA2
Main Erase Lamp/
failure detection
2/8
IC4A
APC7
OFF
ON
PJ12A-5
S1
Power Switch
1/8
IC1A
P53
OFF
ON
PJ4A-1
S21
Front Door Interlock
Switch
1/8
IC1A
P51
OFF
ON
PJ4A-4
S22
Right Upper Door
Interlock Switch
3/8
IC5A
BPB2
OFF
ON
PJ16A-2
S23
Left Upper Door
Interlock Switch
3/8
IC5A
BPC6
OFF
ON
PJ16A-4
S53
Paper Exit Switch
3/8
IC4A
BPB2
Paper
present
Paper
not
present
PJ20A-12
S61
Paper Size Detecting
Switch 1
1/8
IC3A
BPA6
Size yet
to be de-
tected
Size de-
tected
PJ26A-2
S62
Paper Size Detecting
Switch 2
1/8
IC3A
BPA7
Size yet
to be de-
tected
Size de-
tected
PJ26A-4
S63
Paper Size Detecting
Switch 3
2/8
IC3A
BPB4
Size yet
to be de-
tected
Size de-
tected
PJ26A-7
S64
Paper Size Detecting
Switch 4
2/8
IC3A
BPB5
Size yet
to be de-
tected
Size de-
tected
PJ26A-9
S106
Toner Empty
Detecting Switch
3/8
IC1A
BPC6
Toner
still avail-
able
Toner
empty
PJ11A-8B