HP LaserJet 1022 - Circuit Diagram

Circuit diagram
1324
6
5
4
3
2
1
D
C
B
A
M
1
3
2
4
M
1
3
2
4
INL101
Door switch
SW301
FU101
Fuse
SW101
Powe
r switch
Picku
p solenoid
Laser Drive
PCB
BD
sensor
Laser / Scanner unit
FU102
Fuse
100-127V only
2
4
6
8
1
3
5
7
9
2
1
TP1
12
H701
2
1
TH1
1
2
J1102
12
12
FSRTH
GND
J102
J204
123
PS803
132
132
J203
312
J802
12
12
SL001
CPUD
+24V
+3.3V
POSNS
GND
132
1
32
4
1
32
4
1
3
5
7
9
2
4
6
8
CNT0
CNT1
CNT2
GND
/VDO1
VDO1
GND
VDO2
/VDO2
GND
/BDI
+5V
GND
J002
J801
GND
/DEC
/ACC
+24VR
J904
J905
6
4
2
5
31
FWD
/SI
/SO
/CLK
/STRB
GND
J901
1
2
J201
1
3
5
7
9
11
13
15
17
19
2
4
6
8
10
12
14
16
18
21
20
22
23
24
25
26
J2
J902
1
32
1
32
ACH
ACN
1324
1324
423 1
123
PS802
123
PS801
J801
+3.3V
PISNS
PWSNS
GND
J202
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
+24VR
GND
+24VR
GND
+24VR
GND
+3.3V
+24V
/POSNS
GND
/PISNS
PWSV
/PWSNS
PRPWM
PRAC
DVAC
TRNDC
TRPDC
FSRD
FSRTH
RLYD
TRCRNT
DOSNS
/PW2SNS
FREQSNS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
1
32
4
1
32
4
J001
/MB
MB
/MA
MA
J909
4
23
1
4
23
1
1
3
5
7
9
11
13
2
4
6
8
10
12
14
1
3
5
7
9
11
13
2
4
6
8
10
12
14
+24VR
CPUD
GND
/VDO1
VDO1
GND
/VDO2
VDO2
GND
/RESET0
/SCLK
/SC
/BDO
+5V
+3.3V
GND
J910
2
1
1
2
ACN
ACH
P5
J5
J6
J205
1
32
1
32
123
PS804
312
J803
+3.3V
PW2SNS
GND
15
16
15
16
10
11
12
13
10
11
12
13
Inlet
Paper delivery
sensor
Paper deliver
y sensor PCB
Powe
r suppl
y PCB
Top-of-page
sensor
Paper width
sensor
To p -o
f-
page / paper width sensor PCB
Thermistor
Fusing heater
Therma
l fuse
Fusing film unit
Fuser
Formatter
Centronics interf
ace
USB interf
ace
Engin
e controlle
r PCB
Scanner motor
Main motor
2
1
Fusing deliver
y paper
width sensor
Fusing deliver
y paper width sensor PCB
Figure 6-6 Circuit diagram
118 Chapter 6 Troubleshooting ENWW