Brother HL-7050 Series User manual

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Read this list thoroughly before maintenance work.
Keep this list in a convenient place for quick and easy reference at all times.
September 2002
PL-PRN036

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 SYMBOL 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 September 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 .................................................................................................1
2. DRIVE...................................................................................................3
3. LASER UNIT.........................................................................................5
4. PAPER EJECT.....................................................................................5
5. PAPER FEED.......................................................................................7
6. MP TRAY..............................................................................................7
7. PAPER TRAY.......................................................................................9
8. FIXING UNIT.......................................................................................11
9. COVERS / LABELS............................................................................ 13
10. SWITCH PANEL.................................................................................15
11. MAIN PCB .......................................................................................... 15
12. ENGINE PCB......................................................................................17
13. HIGH-VOLTAGE POWER SUPPLY PCB..........................................17
14. LOW-VOLTAGE POWER SUPPLY PCB........................................... 19
15. AC CORDS.........................................................................................19
16. ACCESSORIES..................................................................................21
17. PACKING MATERIALS......................................................................23
18. PERIODICAL MAINTENANCE PARTS..............................................25
19. NET WORKBOARD ...........................................................................27
20. TCO099 ..............................................................................................29

1. FRAME
REF.NO.
CODE Q'TY DESCRIPTION
1LJ9044001 1SIZE SW PCB ASSY
2LJ1568001 1SIZE SW SPRING
3UH2208001 4RUBBER FOOT
4LJ0259001 1FAN MOTOR 60
5LJ0670001 2TAPTITE, PAN B M3X35
6LJ0822001 3TAPTITE, CUP S M3X4
7LJ1135001 1DC FAN AUB0624
8LJ1136001 1FILTER TAK-CR
9LJ9036001 1REGIST SENSOR PCB ASSY
10 LJ9040001 1RELEASE MOTOR SENSOR PCB ASSY
11 UF9823001 2SHOULDER SCREW
12 LJ0941001 1SCREW, BIND P TITE 2.3X16
13 LJ8455001 3CONNECTOR:52968-0611
14 LJ9046001 1LEFT SIDE PCB ASSY
15 LJ9049001 1REAR RELAY PCB ASSY
16 LJ9051001 1TONER LED PCB ASSY
17 LJ1159001 1TIP ACTUATOR
18 LJ1160001 1REGIST ACTUATOR
19 LJ1161001 1COIL SPRING TIP
20 LJ1162001 1COIL SPRING REGIST
21 LJ1166001 1REGIST ROLLER
22 UD4152001 2BEARING A
23 LJ1244001 1ELECTROMAGNETIC DEVELOP CLUTCH
24 LJ1168001 2COLLAR 8
25 LJ1169001 2BEARING AM
26 LJ1170001 1PINCH ROLLER
27 LJ1175001 2COLLAR 6
28 LJ1210001 1INTERLOCK SW ASSY
29 UL9033001 1FAN MOTOR
30 LJ1651001 1FAN MOTOR 60-3P
31 LJ1209001 2COLLAR 4
32 LJ1204001 1FRONT GUIDE ASSY
33 LJ1214001 1MAIN FAN FOAM
34 LJ1215001 2SUB FAN FOAM
MODEL HL-7050/7050N 84T-U07/08-500
REMARK
- 1 -

- 2 -
MODEL HL-7050/7050N 84T-U07/08-500
1. FRAME
2
6
13
13
13
29
33
34
34
30
15
32
16
1
9
18
19
20
21
22
22
24
24
25
25 31
31
26
27 27
23
17
10
3
4
7
8
14
5
5
3
3
11 12
28

2. DRIVE
REF.NO. CODE Q'TY DESCRIPTION
1LJ1252001 1MAIN MOTOR ASSY
2LJ1244001 1ELECTROMAGNETIC DEVELOP CLUTCH
3LJ1554001 1SOLENOID ASSY
4LJ0309001 1SOLENOID SPRING MP
5LJ1278001 1FEEDING MOTOR ASSY
6U11776001 1SCREW, FLANGED M3X3.5
7LJ1280001 1ELECTROMAGNETIC FEED CLUTCH
MODEL HL-7050/7050N 84T-U07/08-550
REMARK
- 3 -

- 4 -
2. DRIVE
MODEL HL-7050/7050N 84T-U07/08-550
1
2
3
4
5
6
7

3. LASER UNIT
REF.NO.
CODE Q'TY DESCRIPTION
1LJ1304001 1SCANNER UNIT (SP)
2 087321615 4 TAPTITE, CUP S M3X16
MODEL HL-7050/7050N 84T-U07/08-700
4. PAPER EJECT
REF.NO.
CODE Q'TY DESCRIPTION
1LJ1098001 1PAPER EJECT UNIT
1-1 UH3323001 4EJECT PINCH ROLLER ASSY
1-2 UH3948001 4PINCH SPRING
1-3 LJ0668001 2EJECT ROLLER ASSY
1-4 LJ0657001 2EJECT ROLLER GROUND PLATE
1-5 LJ0477001 4BEARING 6
1-6 LJ0718001 1REAR ACTUATOR 4
1-7 LJ9034001 1REAR SENSOR PCB ASSY
1-8 LJ0110001 1REAR ACTUATOR 3
1-9 LJ0111001 1REAR TRAY ACTUATOR
1-10 LJ0112001 1REAR TRAY ACTUATOR SPRING
1-11 087310815 1 TAPTITE, CUP B M3X8
1-12 085310815 2 TAPTITE, BIND B M3X8
1-13 048040346 2 RETAINING RING, E4
1-14 LJ1562001 4CORRUGATED COLLAR
1-15 048030346 2 RETAINING RING, E3
2 087320816 2 TAPTITE, CUP S M3X8
3LJ1103001 1EJECTION GEAR UNIT
MODEL HL-7050/7050N 84T-U07/08-420
REMARK
REMARK
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3. LASER UNIT
4. PAPER EJECT
- 6 -
MODEL HL-7050/7050N 84T-U07/08-700
MODEL HL-7050/7050N 84T-U07/08-420
1
2
2
1
3
2
21-5 1-13
1-13
1-5
1-7
1-6
1-8
1-10
1-9
1-12 1-11
1-4
1-4
1-12 1-5
1-5
1-3
1-2
1-2
1-1
1-3
1-14 1-15
1-14 1-1
1-15

5. PAPER FEED
REF.NO. CODE Q'TY DESCRIPTION
1LJ0270001 1PAPER FEED ROLLER ASSY 45 *1
2LJ0273001 1PE SENSOR ACTUATOR
3LJ9055001 1TRAY PE SENSOR PCB ASSY
4LJ0279001 2BEARING
5LJ0284001 6PAPER FEED ROLLER BEARING
6LJ1290001 1PAPER FEED ROLLER TR
7LJ1297001 1PAPER FEED ROLLER MP
8LJ1300001 1PAPER FEED ROLLER A4
9LJ1313001 1FOAM HOLDER A4 ASSY
10 LJ1322001 2HOLDER SPRING A4
11 LJ1324001 2FOAM HOLDER ASSY
12 LJ1330001 4HOLDER SPRING
13 LJ1293001 2PAPER FEED ROLLER
14 LJ1168001 5COLLAR 8
15 LJ1302001 1PINCH ROLLER A4
16 LJ1175001 5COLLAR 6
17 LJ1741001 1STOPPER SPRING
MODEL HL-7050/7050N 84T-U07/08-600
6. MP TRAY
REF.NO. CODE Q'TY DESCRIPTION
1LJ0295001 1SEPARATION PLATE ASSY MP
2LJ0298001 1SEPARATION PAD SPRING MP
3LJ0299001 1PLATE ASSY MP
4LJ0305001 2PLATE SPRING MP
5LJ0307001 1SOLENOID ASSY MP
6LJ0309001 1SOLENOID SPRING MP
7LJ0311001 1PAPER FEED ROLLER ASSY MP
8LJ1332001 1ROLLER COVER ASSY MP
8-1 LJ9057001 1MP PE SENSOR PCB ASSY
8-2 LJ0328001 1PE SENSOR ACTUATOR MP
8-3 LJ0329001 1PE SENSOR ACTUATOR 2 MP
9LJ0330001 1TRAY ASSY MP
10 LJ0334001 1TRAY COVER ASSY MP
10-1 LJ0337001 2TRAY COVER ROCK SPRING
11 085310815 5 TAPTITE, BIND B M3X8
12 085320816 4 TAPTITE, BIND S M3X8
13 U11776001 1SCREW, FLANGED M3X3.5
14 LJ1741001 1STOPPER SPRING
MODEL HL-7050/7050N 84T-U07/08-630
REMARK
REMARK
*1 A component part of the
PAPER FEEDING KIT.
Refer to "18. PERIODICAL
MAINTENCE PARTS".
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