Brother HL 1850 - B/W Laser Printer User manual

Brother Laser Printer
PARTS REFERENCE LIST
MODEL: HL-185 /187 N
Read this list thoroughly before maintenance work.
Keep this list in a convenient place for quick and easy reference at all times.
January 2002
P -PRN031

NOTE FOR USING THIS PARTS REFERENCE LIST
1. In the case of ordering parts, it needs mentioning the following items:
(1) Code
(2) Q'ty
(3) Description
(4) Symbol ( PCB No., Revision , and Parts location mounted on the PCB.)
Note : No orders without Parts Code or Tool No. can be accepted.
< Example >
REF.NO. CODE QTY DESCRIPTION SYMBO REMARK
Revision No.: marked on the main printed circuit board.
B48K056 - 201A
Revision No.: marked on the power supply printed circuit board.
Rev. A
2. Design-changed parts :
If the parts are changed, any one of the following symbols is indicated in the REMARKS column.
#A : Compatible between old and new
#B : Replaceable from old to new
#D : Incompatible
# : Newly established
3. The original of this list was made based on the information available in January 2001.
4. Parts are subject to change in design without prior notice.
(1) (4)
(3)
(2)
Design change indication
Specification No .
Pattern alteration No.
Circuit board No.
Design change indication
(The first version has no sign.)

CONTENTS
1. FRAME / DRIVE UNIT .......................................................................... 1
2. LASER UNIT ........................................................................................ 1
3. PAPER FEEDER / MP UNIT ................................................................ 3
4. DUPLEX ............................................................................................... 5
5. PAPER CASSETTE ............................................................................. 7
6. FIXING UNIT......................................................................................... 9
7. COVERS............................................................................................. 11
8. MAIN PCB .......................................................................................... 13
9. ENGINE PCB...................................................................................... 15
10. LOW-VOLTAGE POWER SUPPLY PCB........................................... 15
11. HIGH-VOLTAGE POWER SUPPLY PCB .......................................... 17
12. AC CORDS ......................................................................................... 17
13. ACCESSORIES.................................................................................. 19
14. PACKING MATERIALS...................................................................... 21
15. NETWORK BOARD ........................................................................... 21
16. PERIODICAL MAINTENANCE PARTS ............................................. 23

1. FRAME / DRIVE UNIT PR2002076
REF.NO.
CODE Q'TY DESCRIPTION SYMBOL REMARK
1LJ5980001 1MAIN MOTOR ASSY HE
2LJ5969001 1FEED SOLENOID ASSY HE
3LJ5973001 1SOLENOID ASSY 04C4
4LJ5976001 1SOLENOID ASSY 04C5
5LJ5208001 2LOCK LEVER SPRING
6LJ5307001 1TONER LED PCB UNIT (EMISSION)
7LJ8357001 1SOL RELAY PCB ASSY
8LJ5088001 1REVERSING SWITCH SOLENOID
9LJ5015001 1T-BELT B40S2M142
10 LJ5100001 1TONER SENSOR PCB UNIT (RECEPTION)
11 UL8507001 4RUBBER FOOT
12 LJ5925001 1GEAR 21H
13 UL9069001 2CONDUCTOR BUSH 5
14 LJ5533001 1CONDUCTOR BUSH H
15 LJ5117001 1FAN MOTOR 60
16 LJ8363001 1DX SENSOR PCB ASSY
17 LJ8724001 3TAPE 60X12
18 LE1169001 1USB GROUND PLATE
19 087320615 11 SCREW, CUP S TITE 3X6
20 085411015 3 TAPTITE, BIND B M4X10
21 000300415 1 SCREW, BIND M3X4
22 085310815 1 TAPTITE, BIND B M3X8
23 LJ5966001 1FUSER DRIVE GEAR 1HE
24 LJ5967001 1FUSER DRIVE GEAR 2HE
25 LJ5930001 1FEED ROLLER GEAR SHAFT
26 LJ5114001 1SPRING, EXTENSION P/R ADD
MODEL HL-1850/1870N 84U-Z23/Z24-010
T/I NO. PR2002076
2. LASER UNIT
REF.NO.
CODE Q'TY DESCRIPTION SYMBOL REMARK
1LJ7004001 1LASER UNIT (SP)
2 087321615 3 TAPTITE, CUP S M3X16
MODEL HL-1850/1870N 84U-Z23/Z24-020
- 2 -

1. FRAME / DRIVE UNIT
2. LASER UNIT
- 1 -
1
2
22
8
9
1
12 25
65
27
19
20
10 15
11
22
18
16
20
11
11
13
19
19
19
21
23 24
13
14
4
3
19
19
17 17
17
MODEL HL-1850/1870N 84U-Z23/Z24-010
MODEL HL-1850/1870N 84U-Z23/Z24-020
26
PR2002076
T/I NO. PR2002076

3. PAPER FEEDER / MP UNIT PR2002067
REF.NO.
CODE Q'TY DESCRIPTION REMARK
1UL9059001 2JOINT 5
2UL9060001 1FEED ROLLER ASSY
3UL9062001 2BUSH 5
4LJ5146001 1FIRST FEED ROLLER ASSY
5A LJ5016001 1PAPER PICK-UP ROLLER ASSY *1
5B LJ5016001 1PAPER PICK-UP ROLLER ASSY
6LJ5020001 2BUSH L
7LJ5021001 2BUSH R
8LJ5184001 1SEPARATION PLATE ASSY
9LJ5188001 1MP PRESSURE PLATE ASSY
10 LJ5197001 1MP COVER
11 LJ5199001 1MP PAPER GUIDE 1
12 LJ5200001 1MP SIDE GUIDE L
13 LJ5201001 1MP SIDE GUIDE R
14 LJ5203001 1MP PAPER GUIDE 2
15 LJ5204001 1MP PAPER GUIDE 3
16 LJ5013001 1PROCESS UNIT COVER ASSY
16-1 LJ5205001 1PROCESS UNIT COVER
16-2 LJ5206001 1P COVER LOCK LEVER L
16-3 LJ5207001 1P COVER LOCK LEVER R
16-4 LJ5208001 1LOCK LEVER SPRING
17 LJ8365001 1CASSETTE SENSOR PCB ASSY
18 LJ8367001 1MP SENSOR PCB ASSY
19 087310815 1 TAPTITE, CUP B M3X8
20 085311015 1 SCREW, BIND B TITE 3X10
21 087310615 1 TAPTITE, CUP B M3X6
22 LJ5131001 1RESIST FRONT ACTUATOR
23 LJ5132001 1RESIST FRONT ACTUATOR SPRING
24 LJ5626001 1STOPPER H
25 LJ5133001 1RESIST REAR ACTUATOR
26 LJ5134001 1
RESIST REAR ACTUATOR SPRING
27 LJ7073001 1PE ACTUATOR H
28 LJ5155001 1CA ACTUATOR
29 LJ5162001 1MP-PE SENSOR ACTUATOR 1
30 LJ5163001 1MP-PE SENSOR ACTUATOR 2
31 LJ5915001 2ROLLER COLLAR SPRING
32 LJ5916001 2ROLLER COLLAR WASHER
33A LJ5150001 2ROLLER COLLAR
33B LJ5150001 2ROLLER COLLAR
MODEL HL-1850/1870N 84U-Z23/Z24-010
T/I NO. PR2002067
*1 A component part of the
PAPER FEEDING KIT.
Refer to "16. PERIODICAL
MAINTENCE PARTS".
- 4 -

3. PAPER FEEDER / MP UNIT
- 3 -
MODEL HL-1850/1870N 84U-Z23/Z24-041
1
12
18
13
21
11
19
10
14
15
2
5B
5A
633B
33B
6
27
31
31
33A
33A
32
32
28
17
20
7
7
829
30
9
3
1
22
2324
25
26
43
16
16-1
16-3
16-2
16-4
PR2002067
T/I NO. PR2002067

4. DUPLEX
REF.NO.
CODE Q'TY DESCRIPTION REMARK
1LJ5216001 1EXIT ROLLER UNIT
1-1 LJ5220001 1EXIT ROLLER ASSY ZLH
1-2 UL9122001 4PINCH ROLLER ASSY
1-3 UL9125001 4PINCH ROLLER SPRING
1-4 LJ8364001 1REAR COVER SENSOR PCB ASSY
1-5 085411015 2 TAPTITE, BIND B M4X10
1-6 087310815 1 TAPTITE, CUP B M3X8
2LJ5222001 1DX OUTER CHUTE ASSY
2-1 LJ5223001 1DX OUTER CHUTE
2-2 LJ5224001 1FRAP 2
2-3 LJ5225001 1FRAP 2 SPRING
3LJ5226001 1DX REAR CHUTE
4LJ5227001 1REAR COVER C
5LJ5990001 1FAN MOTOR 60 B UNIT
6LJ7091001 1DX FEED ASSY HE
6-1 LJ7092001 3ROLLLER HOLDER HE
6-2 UH2360000 5PRESSURE ROLLER
6-3 LJ5233001 1GROUND WIRE
6-4 LJ5235001 1DX FEED ROLLER ASSY
6-5 LJ5238001 2SIDE REGIST ROLLER
6-6 LJ5015001 1T-BELT B40S2M142
6-7 LJ5240001 1T-BELT B40S2M224
6-8 LJ5241001 1SIDE REGIST ROLLER HOLDER
6-9 LJ5248001 1GUIDE ACTUATOR
6-10 LJ5249001 1GUIDE ACTUATOR SPRING
6-11 LJ5250001 1DX PAPER ACTUATOR
6-12 LJ5251001 1PAPER ACTUATOR SPRING
6-13 LJ5616001 1SHOULDER TAPTITE, BIND B 3X7.5A
6-14 085310815 3 TAPTITE, BIND B M3X8
6-15 060300415 1 SCREW, BIND M3X4
6-16 085310515 1 TAPTITE, BIND M3X5
7LJ5237001 1DRIVE GEAR 14
MODEL HL-1850/1870N 84U-Z23/Z24-042
- 5 -

4. DUPLEX
- 6 -
1-1 1-4
1-6
1-5
1-5
1-3
1-2
1-2
1-3
1
5
2
2-1
2-2
3
4
6
6-1
6-5
6-7
6-6
6-14
6-10
6-8
6-2
6-12
6-11
6-16
6-9
6-2
6-4
6-1
6-3
2-3
6-14
6-14 6-15
6-13
7
MODEL HL-1850/1870N 84U-Z23/Z24-042

5. PAPER CASSETTE PR2002029
REF.NO.
CODE Q'TY DESCRIPTION REMARK
1LJ7090001 1PAPER TRAY ASSY HE BRO CHNG
1-1 LJ4537001 1PRESSURE PLATE ASSY LGL
1-2 UL9077001 2PERSSURE PLATE SPRING
1-3 UL9078001 1SIDE GUIDE L
1-4 UL9079001 1SIDE GUIDE R
1-5 UL9080001 2SIDE GUIDE RACK
1-6 UL9081001 1SIDE GUIDE GEAR
1-7 UL9082001 1FRICTION SPRING
1-8 LJ5919001 1PAD HOLDER ZLH ASSY JPN *2
1-9 LJ5923001 1SEPARATION PAD SPRING 350
1-10 LJ5259001 1PAPER INDICATOR
1-11 UL9092001 1LOCK LEVER
1-12 UL9095001 1HELICAL EXTENSION SPRING
1-13 LJ4196001 1PRESSURE ROLLER HOLDER
1-14 LJ5260001 1PRESSURE ROLLER COLLAR
1-15 LJ5261001 1PRESSURE ROLLER SHAFT
1-16 LJ4197001 1PAPER TRAY COVER
1-17 LJ4272001 1TRAY COVER FILM
1-18 LJ4221001 1SCRATCH SPONGE HOLDER ASSY
1-19 LJ4200001 2SCRATCH SPONGE SPRING
1-20 LJ5011001 1TRAY LOCK LEVER
1-21 UL9083001 1PAPER REAR GUIDE
1-22 UU0231001 1TAPTITE, PAN B M3X8
1-23 087310815 1 TAPTITE, CUP B M3X8
1-24 UF8709001 1TAPTITE, TORX PAN B M3X8
MODEL HL-1850/1870N 84U-Z23/Z24-045
T/I NO .PR2002029
*2 A component part of the
PAPER FEEDING KIT.
Refer to "16. PERIODICAL
MAINTENCE PARTS".
- 8 -