Lexmark C720 5024-001 Part List

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
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PCL is a registered trademark of the Hewlett-Packard Company.
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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. Comm on 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 th at the individual parts or the ne xt 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 bill-

of-material. An assembly is complete. A bill-of-material contains
unassembled parts.

• NA: Not available/not referenced.

Parts Catalog 7-1

7-2

Assembly 1:

Parts Catalog

5024-001

Assembly 1:

Ref

1 - 1 1

21

31

41

51

61

71

81

91

10 1
12 12G7004 1

13 12G7005 1
14 12G7006 1

Part

Number

Units 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

15 12G7007 1
16 12G7008 1

16 1339517 1

16 1339518 1

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

Parts Catalog 7-3

7-4

Assembly 1 (cont.):

Parts Catalog

5024-001

Assembly 1 (cont.):

Ref

1 - 16 1339520 1

16 1339524 1
16 1339528 1

16 1339529 1

16 1339530 1
16 1339531 1
16 1339532 1

16 1339533 1
16 1339534 1
18 12G7010 1
18 12G7232 1
19 12G7011 1
20 12G7012 1

Part

Number

Units 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

21 12G7013 1
23 12G7014 1
24 12G7159 1
25 12G7160 1

12G7341 1
12G7340 1

Transfer Unit (includes 12, 13, 20, 23, 25)
PT1 Sensor Lev e r
Paper Cassette Paper Stop
Registration Roller Assembly
Parts Packet, Screws
Parts Packe t, 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 7-5

7-6

Assembly 2:

Parts Catalog

5024-001

Assembly 2:

Ref Part Number Units Description

2 - 1 12G7015 1

2 12G7016 1

Top Cover Assembly (includes 35)
Side Cover (R)

3 12G7017 1
4 12G7018 1
5 12G7019 1
6 12G7020 1
7 12G7021 1
8 12G7022 1

9 12G7023 1
10 12G7024 1
11 12G7025 1
12 12G7026 1
13 12G7027 1
14 12G7028 2
15 12G7029 1
16 12G7030 1
17 12G7031 1
20 12G7032 1

Side Cover (L)
Upper Side Cover (L)
Front Cov er
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

21 12G7033 1
22 12G7034 1
23 12G7035 1
24 12G7036 1
25 12G7037 1

26 12G7038 1

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

7-8

Assembly 2 (cont.):

Parts Catalog

5024-001

Assembly 2 (cont.):

Ref Part Number Units Description

2 - 27 12G7039 1

28 12G7037 1

Paper Exit Roller
Paper sensor (PFUL)

29 12G7360 1
30 12G7041 1
31 12G7042 1
32 12G7043 1
33 12G7044 1
34 12G7161 1
35 12G7162 1
36 12G7163 1
37 12G7164 1
38 12G7165 1
39 12G7166 1
40 12G7167 1

41 12G7168 1
42 12G7169 1

43 12G7170 1
44 12G7171 1

Operator Panel Assembly
Paper Exit Gear Z19
FCS Cover Assembly
Paper Size Sensor
BC Ter minal 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

45 12G7172 1
46 12G7173 1
47 12G7174 1

47A 12G7036 1

48 12G7175 1
49 12G7176 1

Front Cov er 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

7-10

Assembly 2 (cont.):

Parts Catalog

5024-001

Assembly 2 (cont.):

Ref Part Number Units Description

2 - 50 12G7177 1

51 12G7019 1

DC Guide L
DC Guide (R)

52 12G7179 1
53 12G7180 1
54 12G7070 1

12G7341 1
12G7340 1

Waste Toner U Spring
TR Terminal Base Assembly
Interlock Switch
Parts Packet, Screws
Parts Packe t, 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

7-12

Assembly 3:

Parts Catalog

5024-001

Assembly 3:

Ref Part Number Units Description

3 - 1 12G7045 1

2 12G7046 1

Paper Feeding Clutch (PCLU)
Registration Clutch (RECL)

3 12G7047 1

4 12G7048 4

5 12G7049 1

6 12G7049 1

7 12G7051 1

8 12G7052 1

9 12G7053 1
10 12G7054 1
11 12G7055 1
12 12G7056 1
13 12G7057 1

14 12G7058 1
15 12G7059 1

16 12G7060 1
17 12G7061 1
18 12G7062 1

Fuser Clutch (FUCL)
Develo pe r Cl u t ch
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)

19 12G7063 1
20 12G7064 1
21 12G7065 1
22 12G7037 5
23 12G7067 1
24 12G7068 1

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

7-14

Assembly 3 (cont.):

Parts Catalog

5024-001

Assembly 3 (cont.):

Ref Part Number Units Description

3 - 25 12G7069 1

26 12G7070 1

Fuser Connector
Interlock Switch, Front Door

27 12G7073 1
28 12G7074 1
29 12G7075 1
30 12G7076 1
31 12G7077 2
32 12G7078 1
33 12G7079 1
34 12G7079 1
35 12G7081 2
36 12G7082 1
38 12G7083 1
39 12G7084 1
53 12G7181 1
54 12G7182 1
55 12G7183 1
56 12G7184 1

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

57 12G7185 1

12G7341 1
12G7340 1

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

7-16

Assembly 4:

Parts Catalog

5024-001

Assembly 4:

Ref

4 - 1 12G7098 1

2 12G7099 1

3 12G7100 1

4 12G7037 1

5 12G7037 1

6 12G7103 1

7 12G7104 1

8 12G7186 1

9 12G7187 1
10 12G7188 1

Part

Number

12G7341 1
12G7340 1

Units Description

Paper Feed Roller
Separator Pa d
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 12G7226 1

1 12G7227 1

2 12G7228 1

3 99A1752 1

3 99A1755 1

4 12G7229 1

5 12G7231 1

6 99A0459 1

7 11G0962 1

8 12G7230 1

Part

Number

Units 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 12G7342 1

2 12G7343 1

3 12G7344 1

4 12G7345 1

5 12G7346 1

6 12G7347 1

7 12G7348 1

8 12G7349 1

9 12G7350 1
10 12G7351 1
11 12G7352 1
12 12G7353 1
13 12G7354 1

Part

Number

Units 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 Part Number Units Description

NS 12G1704 1
NS 13A0297 1
NS 13A0296 1
NS 99A0459 1
NS 99A0545 1
NS 12G1696 1
NS 12G1697 1
NS 99A1830 1
NS 99A1752 1
NS 99A1753 1
NS 99A1754 1
NS 99A1755 1
NS 99A1756 1
NS 99A1773 1
NS 99A1757 1
NS 99A1758 1
NS 99A1759 1
NS 99A1774 1
NS 99A0560 1
NS 99A0923 1
NS 99A0467 1
NS
NS 7366394 1
NS 7366417 1
NS 7366413 1
NS 7366409 1

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 12G7037 1

2 12G7043 1

3 12G7045 1

4 12G7098 1

5 12G7099 1

6 12G7121 1

7 12G7122 1

8 12G7123 1

9 12G7124 1
10 12G7144 1

11 12G7224 1
12 12G7145 1
13 12G7146 1
14 12G7147 1
15 12G7148 1
16 12G7149 1

Part

Number

Units 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

17 12G7150 1
18 12G7151 1

-19 12G7152 1
20 12G7153 1
21 12G7154 1
22 12G7155 1
23 12G7156 1

12G7135 1

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 1
12G7136 1

12G7137 1
12G7139 1

Units 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 12G7105 1

2 12G7106 1
3 12G7107 1
4 12G7108 1
5 12G7109 1
6 12G7110 1
7 12G7111 1

8 12G7112 1

9 12G7113 1

10 12G7114 1
11 12G7115 1
12 12G7116 1

13 12G7138 1
14 12G7117 1

16 12G7140 1
17 12G7141 1

Part

Number

Units 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

18 12G7070 4
19 12G7143 1
20 12G7125 1

21 12G7118 1
22 12G7119 1

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 12G7 120 1

24 12G7139 1
25 12G7126 1
26 12G7127 1
27 12G7128 1
28 12G7129 1
29 12G7130 1
30 12G7131 2
31 12G7132 1
32 12G7133 1
33 12G7134 2
35 12G7136 1
36 12G7138 1

Part

Number

12G7135 1

12G7136 1

12G7137 1

12G7139 1

Units 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