Brother Color Laser Printer PARTS REFERENCE LIST MODEL: HL-3450CN Read this list thoroughly before maintenance work. Keep this list in a convenient place for quick and easy reference at all times. January, 00 PL-PRN033
NOTE FOR USING THIS PARTS REFERENCE LIST. In the case of ordering parts, it needs mentioning the following items: () Code () Q'ty (3) Description (4) Symbol ( PCB / PWB No., Revision, and Parts location mounted on the PCB / PWB.) Note : No orders without Parts Code or Tool No. can be accepted. < Example > () () (3) (4) REF.NO. CODE Q TY DESCRIPTION SYMBOL REMARK Revision No.: marked on the main printed circuit board. B48K056-0A Design change indication Specification No. Pattern alteration No. Circuit board No. Revision No.: marked on the power supply PCB. Rev: 0B Design change indication. 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, 00. 4. Parts are subject to change in design without prior notice.
. DRIVE LJ300 MAIN MOTOR 3 LJ300 BD3 GEAR ASSY 3 LJ3300 MAIN GEAR UNIT 3 4 LJ3400 DEVELOPER DRIVE MOTOR 3 5 LJ3500 DEVELOPER DRIVE UNIT 3 6 LJ7500 EP3 GEAR ASSY 7 UH349400 PAPER PICK-UP CLUTCH 8 LJ700 FUSER CLUTCH 3 9 LJ900 CLEANER CLUTCH 3 0 LJ3000 TR CAM CLUTCH 3 UH349500 REGIST CLUTCH LJ800 4 DEVELOPER CLUTCH 3 3 LJ37300 SL3 BD GEAR SET 4 LJ37900 SL3 DE GEAR L7 5 LJ373000 SL3 MD GEAR 5 (DC) --
. DRIVE 3 5 4 0 8 6 7 3 9 5 0 4 - -
. FRAME LJ500 COOLING FAN PS LJ3600 COOLING FAN OZ 3 LJ700 OZONE FILTER PS 4 UH94600 3 INTERLOCK SWITCH 5 LJ3900 PAPER SIZE SENSOR 3 6 UH94800 6 PAPER SENSOR 7 UH94900 BELT SENSOR 8 LJ400 TONER SENSOR ASSY 3 A: Toner sensor (TTR) + B: Toner sensor (TPD) 9 LJ4300 OHP SENSOR 3 0 LJ0400 WASTE TONER FEEDER 3 (U) LJ400 DRUM CLEANER 3 LJ500 TRANSFER DRUM 3 3 UH348500 PAPER PICK-UP ROLLER 4 LJ3700 SEPARATOR PAD 5 LJ800 ERASE LAMP 3 6 LJ7400 ERASE HOLDER 7 UH348800 OIL SENSOR 8 LJ400 FUSER CONNECTOR 3 9 LJ4800 WASTE TONER FEEDER 3 (L) 0 LJ500 WT HOLDER ASSY LJ5400 SW BUTTON 3 LJ700 TONER KEY SENSOR 3 LJ3700 SL3 BC CHARGER 4 LJ37700 FP3 CASSETTE GUIDE SET 5 LJ376000 PAPER GUIDE D3 (N) P 6 LJ37800 SL3 PAPER GUIDE D ( PCS) 7 LJ37300 TR TERMINAL BASE 3 Against Transfer roller jams.(see the service manual for instruction and limitations) -3-
. FRAME 6 3 6 6 6 3 4 7 5 6 5 4 8(A) 7 8 0 6 7 4 6 3 7 5 4 6 9 6 9 8(B) 4 0-4 -
3. LASER UNIT LJ300 OPTICAL UNIT 3 4. MEDIA CASSETTE LJ7300 PAPER CASSETTE A3 LJ3800 ENVELOPE ADAPTOR 3-5-
3. LASER UNIT 4. MEDIA CASSETTE - 6 -
5. TRANSFER UNIT LJ0900 TRANSFER UNIT 3 - LJ000 TR UNIT COVER 3 - LJ00 TRANSFER ROLLER 3-3 LJ00 PAPER DISCHARGER 3 6. PAPER EXIT UNIT LJ900 PAPER EXIT UNIT 3 - LJ9300 PAPER EXIT UNIT COVER 3 - LJ9400 PAPER EXIT FRONT COVER 3-3 LJ9500 PAPER EXIT UPPER COVER 3-4 LJ9600 PAPER EXIT ROLLER 3-5 LJ9700 DISCHARGING BRUSH 3-6 LJ9800 COOLING FAN EX -7 LJ9900 PAPER EXIT FILTER -7-
5. TRANSFER UNIT -3 - - 6. PAPER EXIT UNIT -3-5 - -4 - -6-7 - 8 -
7. FUSING UNIT LJ0500 FUSING UNIT 3 US LJ0600 FUSING UNIT 3 EC - LJ0700 FUSING HEATER 3 US - LJ0800 FUSING HEATER 3 EC - LJ7600 OIL PAN UNIT 3 -- LJ3900 FU FELT 3 ASSY LJ37400 SL3 FU GEAR SET 3 LJ37500 FU3 FUSING ROLLER 4 LJ37600 FU3 BACK-UP ROLLER 5 LJ37300 P/R CLEANER 8. MAIN PCB REF.NO. CODE Q'TY DESCRIPTION SYMBOL REMARK LJ89000 MAIN PCB ASSY, HL3450CN B537-0G LJ890300 DIMM:PM-HP-64M-BR 3 LJ373300 MAIN PCB BASE PLATE 4 LJ86700 BRNET PCB UNIT 400H -9-
7. FUSING UNIT 4 3 - -- - 5 8. MAIN PCB 4 3-0 -
9. COVER LJ800 TOP COVER 3 LJ8300 SIDE COVER 3 (R) 3 LJ8400 SIDE COVER 3 (L) 4 LJ8500 SIDE FRONT COVER 3 (L) 5 LJ8600 UPPER SIDE COVER 3 6 LJ8700 PANEL CASE ASSY 7 UH345500 PANEL BUTTON 8 UH345600 PANEL PWB 9 LJ9000 FRONT COVER UNIT 3 9- LJ900 FRONT COVER 3 0 LJ0000 BASE COVER 3 (R) LJ000 BASE COVER 3 (L) LJ000 REAR COVER 3 3 LJ0300 REAR COVER 3 (U) 4 LM03000 OZONE FILTER E 5 LM0300 OZONE FILTER COVER E 6 LJ5000 REAR COVER U CAP 7 LJ5300 CLEANER COVER 3 --
9. COVER 5 6 7 3 6 8 7 5 3 5 4 4 9 9-0 - -
0. MCTL PWB REF.NO. CODE Q'TY DESCRIPTION SYMBOL REMARK LJ9300 MCTL PWB A3 LJ9400 MCTL PWB A3 EC F. IOD PWB LJ4500 IOD PWB 3 LJ4600 IOD PWB 3-3-
0. MCTL PWB. IOD PWB - 4 -
. LOW-VOLTAGE POWER SUPPLY UNIT REF.NO. CODE Q'TY DESCRIPTION SYMBOL REMARK LJ00 POWER SUPPLY UNIT 3 US Rev: D LJ76400 POWER SUPPLY UNIT 3 EC F Rev: C 3. HIGH-VOLTAGE POWER SUPPLY UNIT LJ9500 HIGH VOLTAGE UNIT 3 () -5-
. LOW-VOLTAGE POWER SUPPLY UNIT 3. HIGH-VOLTAGE POWER SUPPLY UNIT - 6 -
4. AC CORDS A UH93300 AC CORD, US/CSA 5. ACCESSORIES LJ893400 CD ASSY HL-C LM0900 BC-000 CD ASSY LJ376500 SET GUIDE, ENG 3 LJ374800 DRIVER SET GUIDE WIN, ENG 3 LJ394400 DRIVER SET GUIDE MAC, ENG 4 LJ49600 BAG 5X350H -7-
4. AC CORDS A 5. ACCESSORIES 3 4-8 -
6. PACKING MATERIALS LL03400 ST PACKING SET 3 (B) LL09900 BASE SET 3 (B) 3 LL0300 PALLET 3 (B) 4 LL048900 CARTON, HL-3450CN 5 LM03000 READ ME FIRST SHEET 6 LL03300 BAG,EN 7. PERIODICAL REPLACEMENT PARTS LJ3900 40K KIT LJ3000 0K KIT 3 LJ300 PAPER FEEDING KIT 4 LJ300 70K KIT US 4 LJ3300 70K KIT EC -9-
6. PACKING MATERIALS 4 5 6 3 7. PERIODICAL REPLACEMENT PARTS 4 3-0 -
8. HARD DISK (OPTION) LJ5600 HDD CABLE LJ5700 4 SHOULDER SCREW 3 0873066 4 TAPTITE, CUP S M3X6 - -
8. HARD DISK (OPTION) 3 3 - -