Lexmark X746de User manual

Lexmark™X746de, X748de,
X748dte
7526-576, 776
• Table of contents
• Start diagnostics
• Safety and notices
• Trademarks
• Index
Lexmark and Lexmark with diamond design are
trademarks of Lexmark International, Inc., registered
in the United States and/or other countries.
Revised: February 22, 2016
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Parts catalog 7-1
7526
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7. Parts catalog
How to use this parts catalog
The following legend is used in the parts catalog:
•Asm-index: Identifies the assembly and the item in the diagram. For example, 3-1 indicates Assembly 3
and item number 1 in the table.
•Part number: Identifies the unique number that identifies this FRU.
•Units/mach: Refers to the number of units actually used in the base machine or product.
•Units/option: Refers to the number of units in a particular option. It does not include the rest of the base
machine.
•Units/FRU: Refers to the number of units packaged together and identified by the part number.
•NS: (Not shown) in the Asm-Index column indicates that the part is procurable but is not pictured in the
illustration.
•Model information used in the parts catalog:
Asm-
index Part number Units/mach Units/
FRU Description
Abbreviation
used Machine type/model Model name Description
576 7526-576 Lexmark X746de MFP with e-task and duplex
776 7526-776 Lexmark X748de MFP with e-task, duplex, and hard
drive
776 7526-776 Lexmark X748dte MFP with e-task, duplex, hard drive,
and 550 sheet tray
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7-2 Service Manual
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Assembly 1: Covers—printer
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Parts catalog 7-3
7526
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Assembly 1: Covers—Printer
Index P/N Units/
mach Units/ FRU Description
1—1 40X5164 1 1 Output bin extension cover
2 40X5175 1 1 Top cover assembly, including top access cover springs
3 40X5276 1 2 Top access cover springs
4 40X5174 1 1 Rear cover
5 40X5121 1 1 Top access cover sensor
6 40X5180 1 1 Top access cover parts package, including:
A—Link (top access cover) (2)
B—Link (top cover) (2)
C—Top access cover links (slider cam) (1)
D—Bin full sensor with cable and flag (1)
7 40X5287 1 1 Cooling fan filter
8 40X8319 1 1 Rear frame cover
9 40X5172 1 1 Right cover
10 40X5184 1 1 Front access door cover assembly
11 40X5173 1 1 Left cover
12 40X5221 1 1 Left door cover
13 40X7960 1 1 Operator panel bezel, X746de
13 40X7961 1 1 Operator panel bezel, X748de
14 40X7662 1 1 Top access cover assembly
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7-4 Service Manual
7526
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Assembly 2: Front
5
2
3
4
7
10
12
A
B
D
11
13
E
14
C
G
F
F
1
6
8
9
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Parts catalog 7-5
7526
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Assembly 2: Front
Index P/N Units/
mach Units/ FRU Description
2—1 40X8110 1 1 Fuser assembly, 115 V
1 40X8111 1 1 Fuser assembly, 230 V
1 40X8112 1 1 Fuser assembly, 100 V
2 6 1 Printer pad, included in screws parts packet (P/N 40X5136)
3 40X1446 1 1 Right bellcrank assembly, with spring
4 40X5132 1 1 Parts packet, MP feeder/duplex drive, including:
•Retainer release arm
•Grease packet (Nyogel 744)
•Washer
•Duplex engagement gear
•MP feeder reduction gear
•MP feeder/duplex reduction gear
•MP feeder drive cover
5 40X6319 1 1 Cranklift spring and metal clip
6 40X8308 1 1 Paper pick assembly
7 40X5152 2 2 Pick tire
8 40X5999 1 1 Paper tray assembly, 550-sheet
9 40X6496 1 1 MPF pick arm
10 40X5111 1 1 Parts packet, front door, including:
•A—Front access door cap (1)
•B—Right cable assembly (1)
•C—Front access cover pivot (1)
•D—Left cable assembly (1)
•E—Front access door straps (2)
•F—Front access door bracket (1)
•G—Screw
11 40X5113 1 1 Duplex reference edge assembly
12 40X5995 1 1 Front access door assembly
13 40X6401 1 1 Transfer module
14 40X1447 1 1 Left bellcrank assembly, with spring
NS 40X8554 1 1 Cartridge guide wheels
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7-6 Service Manual
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Assembly 3: Right
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Parts catalog 7-7
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Assembly 3: Right
Index P/N Units/
mach Units/ FRU Description
3–1 40X5290 1 1 EP drive assembly
2 40X7709 1 1 Low-voltage power supply
3 40X5126 1 1 Motor driver card
4 40X8309 1 1 MP feeder/duplex motor
5 40X5128 1 1 24 V interlock switch
6 40X5998 1 1 MPF paper present sensor with cable
7 40X5127 1 1 5 V interlock switch
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7-8 Service Manual
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Assembly 4: Rear
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Parts catalog 7-9
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Assembly 4: Rear
Index P/N Units/
mach Units/ FRU Description
4—1 40X5123 1 1 Printhead assembly
2 40X5107 1 1 System board support shield
3 40X5997 1 1 System board
4 40X8856 1 1 CPU fan
NS 40X0269 1 1 Power cord—USA, Canada, Bolivia, Peru
NS 40X0288 1 1 Power cord (8 ft.)—Argentina
NS 40X0301 1 1 Power cord (8 ft.)—Australia, New Zealand
NS 40X3141 1 1 Power cord (8 ft.)—Austria, Belgium, Catalan, Czechoslovakia, Finland,
France, Germany, Greece, Hungary, Ireland, Italy, Netherlands, Norway,
Paraguay, Poland, Portugal, Russia, Spain, Sweden, Turkey, United
Kingdom
NS 40X0271 1 1 Power cord (8 ft.)—United Kingdom
NS 40X4596 1 1 Power cord (8 ft.)—Brazil
NS 40X0273 1 1 Power cord (8 ft.)—Chile, Uruguay
NS 40X0303 1 1 Power cord (8 ft.)—China
NS 40X1774 1 1 Power cord (8 ft.)—Denmark, Finland, Norway, Sweden
NS 40X0275 1 1 Power cord (8 ft.)—Israel
NS 40X3609 1 1 Power cord (8 ft.)—Japan
NS 40X1792 1 1 Power cord (8 ft.)—Korea
NS 40X1773 1 1 Power cord (8 ft.)—South Africa
NS 40X1772 1 1 Power cord (8 ft.)—Switzerland
NS 40X1791 1 1 Power cord (8 ft.)—Taiwan
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7-10 Service Manual
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Assembly 5: Left
(4 places)
1B
(4 places)(4 places)
1A
1C
(4 places)
(4 places)
3
(8 places)
(4 places)
1G
1E
1F
5
1D2
6
4
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Parts catalog 7-11
7526
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Assembly 5: Left
Index P/N Units/
mach Units/ FRU Description
5—1 40X5137 1 1 Contact springs kit
includes the following:
•A—Torsion PCD contact spring
•B—Torsion CR contact spring
•C—Contact spring cap
•D—Charge roll contact spring
•E—HVPS TAR contact spring
•F—HVPS doctor/developer contact spring
•G—HVPS Db contact spring
•Screw
2 40X7159 1 1 Auger shaft and gear parts pack
3 40X5307 1 1 Waste toner HV contact assembly
4 40X5129 1 1 High-voltage power supply
5 40X1416 4 1 Toner level sensor
6 40X8373 1 1 Toner cartridge contacts
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7-12 Service Manual
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Assembly 6: Top
Index P/N Units/
mach Units/ FRU Description
6—1 40X5109 1 1 Cooling fan
2 40X5122 1 1 Color on demand assembly
3 40X5130 1 1 Top cover camshaft assembly
4 40X5108 1 1 Cartridge cooling fan
3
4
1
2
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Parts catalog 7-13
7526
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Assembly 7: Cable parts packet
Index P/N Units/
mach Units/ FRU Description
NS 40X7973 1 1 Cables, including
•Duplex/MPF motor cable
•Fuser AC cable
•Fuser DC cable
•HVPS cable
•Transport cable
•Fuser and cartridge 1 motor cable
•Cartridge 2 and 3 motor cable
•USB-A cable
•550 option cable
•Transport motor cable
•Speaker cable
•UICC cable (for single-function)
•UICC cable (for multi-function)
•Operator panel ground cable (for single-function)
•Operator panel ground cable (for multi-function)
NS 40X6351 1 1 Motor drive cable
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7-14 Service Manual
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Assembly 8: Covers—scanner
6
8
9
10
5
7
11
14
1
2
13
3
4
12
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Parts catalog 7-15
7526
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Assembly 8: Covers—Scanner
Index P/N Units/
mach Units/ FRU Description
8—1 40X5196 1 1 ADF front case cover
2 40X5202 1 1 ADF upper motor side cover
3 40X5192 1 1 ADF document input tray
4 40X5193 1 1 ADF paper stop
5 40X5194 1 1 Pressure plate cover
6 40X5198 1 1 Flatbed filter door cover
7 40X5218 1 1 Flatbed air filter
8 40X5207 1 1 Scanner rear cover
9 40X5205 1 1 Scanner right cover
10 40X5206 1 1 Scanner front cover
11 40X5204 1 1 Scanner left cover
12 40X5211 1 1 Flatbed with glass cover
13 40X5203 1 1 ADF upper front side cover
14 40X5201 1 1 ADF lid handle cover
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7-16 Service Manual
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Assembly 9: Automatic document feeder (ADF)
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Parts catalog 7-17
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Assembly 9: Automatic document feeder (ADF)
Index P/N Units/
mach Units/ FRU Description
9—1 40X5190 ADF, complete
2 41X0405 1 1 Parts packet—cables (use on machines with ADF serial number 0025xxx)
A—ADF input tray cable
B—ADF case cable
Note: Additional cables listed in assembly 10 (5 total).
2 40X5217 1 1 Parts packet—cables (use on machines with ADF serial number 0024xxx)
A—ADF input tray cable
B—ADF case cable
Note: Additional cables listed in assembly 10 (5 total).
3 40X5210 1 1 Paper present LED card
4 40X5209 1 1 ADF hinge (left or right)
5 40X5166 1 1 ADF exit sensor with cable
6 41X0257 1 1 Scanner ICC card (use on machines with ADF serial number 0025xxx)
6 40X5220 1 1 Scanner ICC card (use on machines with ADF serial number 0024xxx)
7 40X5189 1 1 ADF pick pad
8 40X5165 1 1 ADF static ground brush
9 40X5163 1 1 Separator pad spring
10 40X5187 1 1 ADF separator pad
11 40X5197 1 1 ADF upper case cover
12 40X5188 1 1 ADF pick roll assembly
13 40X5208 1 1 ADF motor gear train assembly
14 40X5191 1 1 ADF cover open flag
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7-18 Service Manual
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Assembly 10: Flatbed scanner
1
B
C
A
7
8
6
5
4
3
2
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Parts catalog 7-19
7526
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Assembly 10: Flatbed scanner
Index P/N Units/
mach Units/ FRU Description
10—1 40X7959 1 1 Flatbed scanner, complete
2 40X5215 1 1 Cave LED card
3 40X5216 1 1 Flatbed cave LED cover (clear)
4 40X7957 1 1 Flatbed CCD carrier module, including lamp assembly
5 40X5214 1 1 Carriage transport belt with clip
6 40X7975 1 1 Scanner MDC card
7 41X0405 1 1 Parts packet—cables
A—ADF cable
B—Scanner to system board flat cable
C—Scanner to system board cable
Note: Additional cables listed in assembly 9 (5 total).
8 40X5199 1 1 Flatbed cooling fan
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