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LASERJET PRO MFP
Repair Manual
M521

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   Also See for HP LASERJET PRO M521 series

   Summary of Contents for HP LASERJET PRO M521 series

  • Page 1

    LASERJET PRO MFP Repair Manual M521...

  • Page 2: How To Use The Parts Lists And Diagrams, Assembly Locations

    How to use the parts lists and diagrams CAUTION: Be sure to order the correct part. When looking for part numbers for electrical components, pay careful attention to the voltage that is listed. Doing so will make sure that the part number selected is for the correct model.

  • Page 3

    Base product (optional trays or accessories) Figure 2-2 Base product (optional trays or accessories) Table 2-5 Optional 500-sheet input tray Item Description Connector Tray 2 or Tray 3 Positioning pin Chapter 2 Parts and diagrams ENWW...

  • Page 4

    Assembly locations ENWW...

  • Page 5

    Covers Figure 2-3 Covers Chapter 2 Parts and diagrams ENWW...

  • Page 6

    Table 2-6 Covers Description Part number Cover, right assembly RM1-8498-000CN Cover, right rear RC2-7673-000CN Cover, handle, right RC2-7675-000CN Cover, formatter RC3-1863-010CN Door, cartridge assembly RM1-8502-000CN Cover kit, Tray 1 A8P80-65010 Multipurpose lifting plate assembly RM1-6325-000CN Cover, top assembly RM1-8516-000CN Cover, left assembly RM1-8517-000CN Cover, rear assembly RM1-8518-000CN...

  • Page 7

    Document feeder and scanner assemblies Figure 2-4 Document feeder and scanner assemblies Chapter 2 Parts and diagrams ENWW...

  • Page 8

    Table 2-7 Document feeder and scanner assemblies Description Part number ADF assembly A8P79-60120 Control-panel assembly A8P79-60115 Scanner assembly A8P79-60121 Wi-Fi module 1150-7957 Wi-Fi cable A8P80-60101 Document feeder and scanner assemblies ENWW...

  • Page 9

    Control-panel and USB PCA assemblies Figure 2-5 Control-panel assembly Chapter 2 Parts and diagrams ENWW...

  • Page 10

    Table 2-8 Control-panel assembly Description Part number Control-panel assembly A8P79-60115 Control-panel FFC A8P79-60106 USB PCA CF368-60001 USB cable A8P79-60102 Control-panel and USB PCA assemblies ENWW...

  • Page 11: Document Feeder Assemblies

    Document feeder assemblies Figure 2-6 Document feeder assemblies Chapter 2 Parts and diagrams ENWW...

  • Page 12

    Table 2-9 Document feeder assemblies Description Part number ADF roller maintenance kit A8P79-65001 ADF separation pad maintenance kit A8P79-65010 ADF assembly A8P79-60120 ADF hinge assembly, left CZ271-60020 ADF hinge assembly, right A8P79-60011 Not shown ADF whole unit kit A8P79-65014 Document feeder assemblies ENWW...

  • Page 13

    Internal assemblies (1 of 6) Figure 2-7 Internal assemblies (1 of 6) (J8010) (J12) (J2104) (J8001) (J1702) (J100) A1 1 (J2401) A1 1 A1 1 (PS8001) A1 1 (J8001) A1 1 A1 1 A1 1 A1 1 (J2304) Chapter 2 Parts and diagrams ENWW...

  • Page 14

    Table 2-10 Internal assemblies (1 of 6) Description Part number Tag holder assembly RM1-8521-000CN Laser/scanner RM1-6322-000CN Photo interrupter, IC WG8–5935–000CN Stopper, bushing arm RC2-7928-000CN Cable, flat RK2-4218-000CN Sensor, environmental PCA RM1-8622-000CN Internal assemblies (1 of 6) ENWW...

  • Page 15

    Internal assemblies (2 of 6) Figure 2-8 Internal assemblies (2 of 6) TO FIGURE 104 (SL1) (J231 1) (SL2) (J2310) A1 1 Chapter 2 Parts and diagrams ENWW...

  • Page 16

    Table 2-11 Internal assemblies (2 of 6) Description Part number Tray 1 solenoid RK2-1490-000CN Tray 2 solenoid RK2-1492-000CN Internal assemblies (2 of 6) ENWW...

  • Page 17

    Internal assemblies (3 of 6) Figure 2-9 Internal assemblies (3 of 6) A1 1 Chapter 2 Parts and diagrams ENWW...

  • Page 18

    Table 2-12 Internal assemblies (3 of 6) Description Part number Registration roller assembly RM1-8507-000CN Roller, multipurpose RL1-2412-000CN Transfer lower guide assembly RM1-6315-000CN Cassette, Tray 2 RM1-8512-000CN Base-plate roller assembly RM1-6306-000CN Roller, transfer RM1-6321-000CN Pad, multipurpose separation RC2-8575-000CN Separation holder assembly RM1-6303-000CN Internal assemblies (3 of 6) ENWW...

  • Page 19

    Internal assemblies (4 of 6) Figure 2-10 Internal assemblies (4 of 6) (FM2) (J8010) (PS225) (J513) (PS215) (J507) A1 1 (J1610) Chapter 2 Parts and diagrams ENWW...

  • Page 20

    Table 2-13 Internal assemblies (4 of 6) Description Part number Fan, sub RK2-1499-000CN Lower paper feed guide RM1-6263-000CN Paper-feed guide assembly RM1-6270-000CN Position-guide assembly RM1-6273-000CN High-voltage power supply (HVPS) PCA RM1-8519-000CN Top sensor PCA RM1-8617-000CN Paper-width sensor PCA RM1-8618-000CN Switch assembly RM1-8515-000CN Pendulum service kit RM1-6598-000CN...

  • Page 21

    Internal assemblies (5 of 6) Figure 2-11 Internal assemblies (5 of 6) A1 1 (FM1) (J2308) (J22) (J2304) (J2400) (J18) A1 1 (SW501) (J2306) (PS205) (J2302) (PS3) (J2301) Chapter 2 Parts and diagrams ENWW...

  • Page 22

    Table 2-14 Internal assemblies (5 of 6) Description Part number Fan, main RK2-2416-000CN Tray 2, paper pickup assembly RM1-8505-000CN Idler roller assembly RM1-8506-000CN Multipurpose sensor PCA RM1-8621-000CN Fuser assembly RM1-8508-000CN Low-voltage power supply (LVPS) assembly RM1-8514-000CN DC controller PCA RM1-8615-000CN Interlock-switch assembly RM1-8499-000CN Assembly, cassette pick up roller (Tray 2 &...

  • Page 23

    Internal assemblies (6 of 6) Figure 2-12 Internal assemblies (6 of 6) (J3) (J4) (J2303) (PS4) (J4) (J8002) (PS1) (M8002) (J3) (J8002) (J2102) (J2201) (J8007) (SW 235) (J2307) Chapter 2 Parts and diagrams ENWW...

  • Page 24

    Table 2-15 Internal assemblies (6 of 6) Description Part number Tray sensor PCA RM1-8620-000CN Fuser motor assembly RM1-8523-000CN Paper-delivery roller assembly RM1-6301-000CN Face-down roller assembly RM1-6311-000CN Photo interrupter, IC WG8-5935-000CN Spring, torsion RC2-8554-000CN Internal assemblies (6 of 6) ENWW...

  • Page 25: Input Devices

    Input devices 500-sheet input tray (Tray 3) Figure 2-13 500-sheet input tray (Tray 3) Chapter 2 Parts and diagrams ENWW...

  • Page 26

    Table 2-16 500-sheet input tray (Tray 3) Description Part number Optional 500-sheet tray and feeder unit CE530-69001 Base-plate roller assembly RM1-6306-000CN Separation holder assembly RM1-6303-000CN Cassette, Tray 3 RM1-6279-000CN Input devices ENWW...

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