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Lexmark C720 5024-001

Extracted From Service Manual

5024-001
Edition: March 2001 The following paragraph does not apply to any country where such provisions are inconsistent with local law: LEXMARK INTERNATIONAL, INC. PROVIDES THIS PUBLICATION "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some states do not allow disclaimer of express or implied warranties in certain transactions; therefore, this statement may not apply to you. This publication could include technical inaccuracies or typographical errors. Changes are periodically made to the information herein; these changes will be incorporated in later editions. Improvements or changes in the products or the programs described may be made at any time. Comments may be addressed to Lexmark International, Inc., Department D22A/032-2, 740 West New Circle Road, Lexington, Kentucky 40550, U.S.A or e-mail at [email protected]. Lexmark may use or distribute any of the information you supply in any way it believes appropriate without incurring any obligation to you. You can purchase additional copies of publications related to this product by calling 1-800-553-9727. In other countries, contact your point of purchase. Lexmark, Lexmark with diamond design, MarkNet, and MarkVision are trademarks of Lexmark International, Inc., registered in the United States and/or other countries. PCL is a registered trademark of the Hewlett-Packard Company. PostScript is a registered trademark of Adobe Systems Incorporated. Other trademarks are the property of their respective owners. © Copyright Lexmark International, Inc. 2001. All rights reserved. UNITED STATES GOVERNMENT RESTRICTED RIGHTS This software and documentation are provided with RESTRICTED RIGHTS. Use, duplication or disclosure by the Government is subject to restrictions as set forth in subparagraph (c)(1)(ii) of the Rights in Technical Data and Computer Software clause at DFARS 252.227-7013 and in applicable FAR provisions: Lexmark International, Inc., Lexington, KY 40550.

U.S.A. P/N: 12G3667

5024-001

7. Parts Catalog
How to Use this Parts Catalog
· SIMILAR ASSEMBLIES: If two assemblies contain a majority of
identical parts, they are shown on the same list. Common parts are shown by one index number. Parts peculiar to one or the other of the assemblies are listed separately and identified by description. AR: (As Required) in the Units column indicates that the quantity is not the same for all machines. NP: (Non-Procurable) in the Units column indicates that the part is non-procurable and that the individual parts or the next higher assembly should be ordered. NR: (Not Recommended) in the Units column indicates that the part is procurable but not recommended for field replacement, and that the next higher assembly should be ordered. R: (Restricted) in the Units column indicates that the part has a restricted availability. NS: (Not Shown) in the Ref column indicates that the part is procurable but is not pictured in the illustration. PP: (Parts Packet) in the Description column indicates that the part is contained in a parts packet. A part reference within a circle indicates an assembly or a billof-material. An assembly is complete. A bill-of-material contains unassembled parts. NA: Not available/not referenced.

· · · · · · · ·

Parts Catalog 7-1

Assembly 1:

Parts Catalog

7-2

5024-001

Assembly 1:
Ref 1-1 2 3 4 5 6 7 8 9 10 12 13 14 15 16 12G7004 12G7005 12G7006 12G7007 12G7008 Part Number Units 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Description Toner Cartridge -Y (Supply, customer order only) Toner Cartridge -M (Supply, customer order only) Toner Cartridge -C (Supply, customer order only) Toner Cartridge -K (Supply, customer order only) OPC Belt Cartridge (Supply, customer order only) Fuser Oil Bottle (Supply, customer order only) Fuser Cleaner (Supply, customer order only) Waste Toner-P (Supply, customer order only) Fusing Unit (110V) (Supply, customer order only) Fusing Unit (220V) (Supply, customer order only) Transfer Roller Paper Discharger Drum Cleaner Ozone Filter Power Cord (U.S.) Power Cord, LV U.S., APG, Bolivia, Canada, Columbia, Costa Rica, Ecuador, EL Salvador, Guatemala, Honduras, Mexico, Nicaragua, Panama, Peru, Venezuela Power Cord, HV, Argentina

16

1339517

1

16

1339518

1

Parts Catalog 7-3

Assembly 1 (cont.):

Parts Catalog

7-4

5024-001

Assembly 1 (cont.):
Ref 1 - 16 16 16 Part Number 1339520 1339524 1339528 Units 1 1 1 Description Power Cord, HV, Brazil Power Cord, HV, Chili Power Cord, HV, UK, Ireland Power Cord, HV, Austria, Belgium, EURO English, Finland, France, Germany, Greece, Netherlands, Norway, Poland, Portugal, Russia, Slovakia/Czech/Hungary Spain, Sweden, Turkey Power Cord, HV, Israel Power Cord, HV, Switzerland French, Switzerland German, Switzerland Italian Power Cord, HV, South Africa Power Cord, HV, Italy Power Cord, HV, Denmark Paper Cassette Paper Cassette (250 sheet legal) Cleaner Cover Transfer Unit Cover Transfer Unit (includes 12, 13, 20, 23, 25) PT1 Sensor Lever Paper Cassette Paper Stop Registration Roller Assembly Parts Packet, Screws Parts Packet, Cable Clamps, Retainers, Miscellaneous

16

1339529

1

16 16 16 16 16 18 18 19 20 21 23 24 25

1339530 1339531 1339532 1339533 1339534 12G7010 12G7232 12G7011 12G7012 12G7013 12G7014 12G7159 12G7160 12G7341 12G7340

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

Note: Reference the foldout wiring diagram, in the back of this manual, for cable replacement detailed information. Then go to Assembly 6 for parts ordering information. Parts Catalog 7-5

Assembly 2:

Parts Catalog

7-6

5024-001

Assembly 2:
Ref 2-1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 20 21 22 23 24 25 26 Part Number 12G7015 12G7016 12G7017 12G7018 12G7019 12G7020 12G7021 12G7022 12G7023 12G7024 12G7025 12G7026 12G7027 12G7028 12G7029 12G7030 12G7031 12G7032 12G7033 12G7034 12G7035 12G7036 12G7037 12G7038 Units 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 Description Top Cover Assembly (includes 35) Side Cover (R) Side Cover (L) Upper Side Cover (L) Front Cover Paper Exit Unit Cover (includes 13) Paper Exit Front Cover Base Cover (R) Base Cover (L) Rear Cover Rear Cover (U) Side F Cover (L) Paper Exit Upper Cover Rear Cover (U) Cap Front Cover Unit (includes 5, 45, 47) Main Engine (MCTL P.W.B.) Board High Voltage Unit Discharge Brush Cooling Fan (HFAN) Paper Exit Filter (with Case) Ozone Filter Cover Paper Sensor (PT2) Paper Sensor (FCL) Paper Exit Unit (includes 6, 7, 13, 20, 21, 22, 24, 25, 27, 28, 30, 31, 40, 42)

Parts Catalog 7-7

Assembly 2 (cont.):

Parts Catalog

7-8

5024-001

Assembly 2 (cont.):
Ref 2 - 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 47A 48 49 Part Number 12G7039 12G7037 12G7360 12G7041 12G7042 12G7043 12G7044 12G7161 12G7162 12G7163 12G7164 12G7165 12G7166 12G7167 12G7168 12G7169 12G7170 12G7171 12G7172 12G7173 12G7174 12G7036 12G7175 12G7176 Units 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Description Paper Exit Roller Paper sensor (PFUL) Operator Panel Assembly Paper Exit Gear Z19 FCS Cover Assembly Paper Size Sensor BC Terminal 2 Control Panel Base Paper Exit Button Shield Cover B Shield Cover A Shield Case Assembly BC Lock Lever (set) Paper Exit Switch Guide Paper Exit Frame Assembly (includes 7,10,24,25,27,28,30,31,40,42) Paper Exit Idle Roller Set Paper Exit Harness Cover IOD Harness Guide Front Cover Latch Front Cover/Door Arm Assembly DE Solenoid Assembly (also order 47A) Cam Sensor, DE Solenoid GPH1, GPH2 Front Paper Cassette Guide (L) Front Paper Cassette Guide (R)

Parts Catalog 7-9

Assembly 2 (cont.):

Parts Catalog

7-10

5024-001

Assembly 2 (cont.):
Ref 2 - 50 51 52 53 54 Part Number 12G7177 12G7019 12G7179 12G7180 12G7070 12G7341 12G7340 Units 1 1 1 1 1 1 1 Description DC Guide L DC Guide (R) Waste Toner U Spring TR Terminal Base Assembly Interlock Switch Parts Packet, Screws Parts Packet, Cable Clamps, Retainers, Miscellaneous

Note: Reference the foldout wiring diagram, in the back of this manual, for cable replacement detailed information. Then go to Assembly 6 for parts ordering information.

Parts Catalog 7-11

Assembly 3:

Parts Catalog

7-12

5024-001

Assembly 3:
Ref 3-1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Part Number 12G7045 12G7046 12G7047 12G7048 12G7049 12G7049 12G7051 12G7052 12G7053 12G7054 12G7055 12G7056 12G7057 12G7058 12G7059 12G7060 12G7061 12G7062 12G7063 12G7064 12G7065 12G7037 12G7067 12G7068 Units 1 1 1 4 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 5 1 1 Description Paper Feeding Clutch (PCLU) Registration Clutch (RECL) Fuser Clutch (FUCL) Developer Clutch Transfer Cam Clutch (TRCM) Cleaner Cam Clutch (FBCM) Cleaner Clutch (FBCL) Main Motor (MM) BD Gear Assembly Main Gear Unit (includes 2, 3, 5, 6, 7) Developer Motor (DM) Developer Drive Unit (includes 4) Developer Drive Gear (Set) FP2 Gear Assembly (Front Developer Solenoid Drive) Waste Toner Feeder (Lower) Cooling Fan (OZFAN) Toner Sensor (TPD, TTR) Toner Key Sensor (TNK) Waste Toner Holder Assembly IOD1 P.W.B. Transfer Drum Paper Sensor (Drum Encoder) (HPSEN) Power Supply Unit (U.S.) 110 V(LVPS) Power Supply Unit (WT) 220 V (LVPS)

Parts Catalog 7-13

Assembly 3 (cont.):

Parts Catalog

7-14

5024-001

Assembly 3 (cont.):
Ref 3 - 25 26 27 28 29 30 31 32 33 34 35 36 38 39 53 54 55 56 57 Part Number 12G7069 12G7070 12G7073 12G7074 12G7075 12G7076 12G7077 12G7078 12G7079 12G7079 12G7081 12G7082 12G7083 12G7084 12G7181 12G7182 12G7183 12G7184 12G7185 12G7341 12G7340 Units 1 1 1 1 1 1 2 1 1 1 2 1 1 1 1 1 1 1 1 1 1 Description Fuser Connector Interlock Switch, Front Door IOD2 P.W.B. Cooling Fan (CTFAN) Waste Toner Feeder Unit (Upper) Erase Lamp Erase Holder (2 pieces) Oil Sensor Belt Sensor (PBS) Drum Jam Sensor (DPJ) Paper Guide D (2 pieces) Optical Unit (Printhead) SW Button Cover (FR) SW Base Front Inner Cover C Oil Sensor Cover Shield Upper PS Fan Assembly (CTFAN) (includes 26, 28) Parts Packet, Screws Parts Packet, Cable Clamps, Retainers, Miscellaneous

Note: Reference the foldout wiring diagram, in the back of this manual, for cable replacement detailed information. Then go to Assembly 6 for parts ordering information.

Parts Catalog 7-15

Assembly 4:

Parts Catalog

7-16

5024-001

Assembly 4:
Ref 4-1 2 3 4 5 6 7 8 9 10 Part Number 12G7098 12G7099 12G7100 12G7037 12G7037 12G7103 12G7104 12G7186 12G7187 12G7188 12G7341 12G7340 Units 1 1 1 1 1 1 1 1 1 1 1 1 Description Paper Feed Roller Separator Pad OHP Sensor Paper Sensor (PEU) Paper Sensor (PT1) Paper Guide (UL) Assembly Paper Guide (UR) Transfer Unit Rear Band Transfer Unit Hinge Support Bracket Paper Guide L Parts Packet, Screws Parts Packet, Cable Clamps, Retainers, Miscellaneous

Note: Reference the foldout wiring diagram, in the back of this manual, for cable replacement detailed information. Then go to Assembly 6 for parts ordering information.

Parts Catalog 7-17

5024-001

Assembly 5: Controller RIP Card

7-18 Service Manual

5024-001

Assembly 5: Controller RIP Card
Ref 5-1 1 2 3 3 4 5 6 7 8 Part Number 12G7226 12G7227 12G7228 99A1752 99A1755 12G7229 12G7231 99A0459 11G0962 12G7230 Units 1 1 1 1 1 1 1 1 1 1 Description Controller RIP Card Network Controller RIP Card SIMM Code 4MB SDRAM DIMM 32MB SDRAM DIMM Riser Card Assembly Hard Disk Mounting Bracket Hard Disk Hard Disk Cable Bracket, Controller RIP Card

Note: The standard and network models have listed memory. See Assembly 7 for part number information.

Parts Catalog 7-19

5024-001

Assembly 6: Printer Cable Harness Sets

7-20 Service Manual

5024-001

Assembly 6: Printer Cable Harness Sets
Ref 6-1 2 3 4 5 6 7 8 9 10 11 12 13 Part Number 12G7342 12G7343 12G7344 12G7345 12G7346 12G7347 12G7348 12G7349 12G7350 12G7351 12G7352 12G7353 12G7354 Units 1 1 1 1 1 1 1 1 1 1 1 1 1 Description Harness WH (A) Wiring Diagram #1 Harness WH (B) Wiring Diagram #2 Harness WH (C) Wiring Diagram #3 Harness WH (D) Wiring Diagram #4 Harness WH (I1/SEN) Wiring Diagram #5 Harness WH (LPC) Wiring Diagram #6 Harness WH (SIZE) Wiring Diagram #7 Harness WH (I1/TO) Wiring Diagram #8 Harness WH (PEX) Wiring Diagram #9 Harness WH (LXPN) Wiring Diagram #10 Harness WH (I2/FD) Wiring Diagram #11 Harness WH (DUAL) Wiring Diagram #12 Harness WH (MC/I1) Wiring Diagram #13

Note: Reference the foldout wiring diagram, in the back of this manual, for cable replacement detailed information.

Parts Catalog 7-21

5024-001

Assembly 7: Miscellaneous
(No illustration)

7-22 Service Manual

5024-001

Assembly 7: Miscellaneous
Ref NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 7366394 7366417 7366413 7366409 1 1 1 1 Part Number 12G1704 13A0297 13A0296 99A0459 99A0545 12G1696 12G1697 99A1830 99A1752 99A1753 99A1754 99A1755 99A1756 99A1773 99A1757 99A1758 99A1759 99A1774 99A0560 99A0923 99A0467 Units 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Description Card Assembly, SIMM IPDS/SCS/TNE Cable, Coax Cable, Twinax Hard Disk, 2.1GB Adapter, Serial MarkNet N2000t 4/16 Token Ring MarkNet N2002e 10Base2/10BaseT MarkNet N2001e 10/100 Ethernet 4MB SDRAM DIMM 8MB SDRAM DIMM 16MB SDRAM DIMM 32MB SDRAM DIMM 64MB SDRAM DIMM 128MB SDRAM DIMM 2MB Flash DIMM 4MB Flash DIMM 8MB Flash DIMM 16MB Flash DIMM Tri-Port Adapter (Serial/LocalTalk and Infrared) Board, USB/Parallel Port Board, Parallel Port Adapter Relocation Packaging - Base Printer - Lower Feed Unit - Duplex Unit - Base Printer / Duplex bundle

Parts Catalog 7-23

5024-001

Assembly 8: Lower Feed Unit

7-24 Service Manual

5024-001

Assembly 8: Lower Feed Unit
Ref 8-1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 -19 20 21 22 23 Part Number 12G7037 12G7043 12G7045 12G7098 12G7099 12G7121 12G7122 12G7123 12G7124 12G7144 12G7224 12G7145 12G7146 12G7147 12G7148 12G7149 12G7150 12G7151 12G7152 12G7153 12G7154 12G7155 12G7156 12G7135 Units 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Description Paper Sensor (PEL) Paper Size Sensor (PSL) Paper Feed Clutch (PKCL) Paper Feed Roller Separator Pad (2) LF Side Cover R LF Side Cover L LF Clutch Drive, Transport Roller (DPKCL) LF Rear Cover Assembly (includes Transport Roll) Drive Gear Assembly LF Paper Feed Cassette LF Base Cover (R) Assembly LF Base Cover (L) LF Top Cover (R) LF Top Cover (L) LF Front Top Cover LF Cassette Guide (R) LF Cassette Guide (L) LF Paper Guide (UR) LF Paper Guide (UL) LF Rear Top Cover GND Contacts Cable Harness LFU / Duplex Parts Packet, Screws

Parts Catalog 7-25

5024-001

Assembly 8 (cont.): Lower Feed Unit (cont.)

7-26 Service Manual

5024-001

Assembly 8 (cont.): Lower Feed Unit (cont.)
Ref Part Number 12G7135 12G7136 12G7137 12G7139 Units 1 1 1 1 Description LFU / Duplex Parts Packet, Screws LFU / Duplex Parts Packet, Retainers LFU / Duplex Parts Packet, Cable Tie / Guides LFU / Duplex Parts Packet, Springs

Note: Reference the foldout wiring diagram, in the back of this manual, for cable replacement detailed information. Then go to the assembly for parts ordering information.

Parts Catalog 7-27

5024-001

Assembly 9: Duplex Unit

7-28 Service Manual

5024-001

Assembly 9: Duplex Unit
Ref 9-1 2 3 4 5 6 7 8 9 10 11 12 13 14 16 17 18 19 20 21 22 Part Number 12G7105 12G7106 12G7107 12G7108 12G7109 12G7110 12G7111 12G7112 12G7113 12G7114 12G7115 12G7116 12G7138 12G7117 12G7140 12G7141 12G7070 12G7143 12G7125 12G7118 12G7119 Units 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 4 1 1 1 1 Description Cover Top (C) Assembly Cover Top (L) Cover Top (R) Cover Top (B) Assembly Cover Low (L) Cover Low (R) Cover Low (B) Assembly Paper Guide Bottom Assembly (includes 19, 25, 28) Paper Guide RVS Assembly (includes 20, 29) Paper Guide Inner Motor 1(DPM1) Motor 2 (DPM2) 4 Cable Bill of Material (Door, P.W.B.P.W.B.,I/F, Solenoid, PT4 P.W.B., Fan) Relay P.W.B. Solenoid (U) Assembly Solenoid (L) Assembly Interlock Switch (DSW1 - DSW4) D Sensor (PT4) D Sensor (PT5) Paper Guide U Assembly (includes printer reference 26) DUP P.W.B.

Parts Catalog 7-29

5024-001

Assembly 9 (cont.): Duplex Unit (cont.)

7-30 Service Manual

5024-001

Assembly 9: Duplex Unit
Ref 9 - 23 24 25 26 27 28 29 30 31 32 33 35 36 Part Number 12G7120 12G7139 12G7126 12G7127 12G7128 12G7129 12G7130 12G7131 12G7132 12G7133 12G7134 12G7136 12G7138 12G7135 12G7136 12G7137 12G7139 Units 1 1 1 1 1 1 1 2 1 1 2 1 1 1 1 1 1 Description Cover Bottom Spring (contains 2 springs) D Roller (contains 20 rollers) 3 Belts Lid-WH Bottom D Sensor Bottom Bill of Material D Sensor Middle Bill of Material D Gear Cover Gate Bottom Band-Spring Set 3 Gears-Belt Set LFU / Duplex Screw Parts Pack Fan Motor (DFAN) LFU / Duplex Parts Packet, Screws LFU / Duplex Parts Packet, Retainers LFU / Duplex Parts Packet, Cable Tie / Guides LFU / Duplex Parts Packet, Springs

Note: Reference the foldout wiring diagram, in the back of this manual, for cable replacement detailed information. Then go to the assembly for parts ordering information.

Parts Catalog 7-31