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External Covers and Parts

HP LaserJet 2420 External Covers and Parts

Pic No.Parts IDParts NameLink
1XA9-1503-000CNM3 truss head (Flanged) phillips screw (Black oxide finish) - 6mm longFind 1
2RC1-4159-000CNRight top cover - Right side top case piece behind control panelFind 2
3XB4-7401-005CNM4 pan-head phillips screw with self-tapping threads - 10mm longFind 3
4RM1-1519-000CNControl panel assembly - Control panel mounted on top right corner of printerFind 4
5RC1-4156-000CNRight rear cover - Vertical cover at right rear of printer - Covers power input and I/O connectorsFind 5
6RC1-4150-000CNRight side cover - Removable right side cover for access to DIMM memoryFind 6
7RC1-4173-000CNPower switch - Located at lower right rear side of printerFind 7
8RU5-2406-000CNSpring - Provides tension for power switchFind 8
9RC1-4157-000CNRight lower cover - Small cover under slide out DIMM access coverFind 9
10RM1-1503-000CNDoor assembly - Cartridge access door assembly behind drop down Tray 1 assemblyFind 10
11RC1-4151-000CNRight front cover - Right front corner of printer coverFind 11
12RU5-2388-000CNTension spring - Provides tension for white plastic arm on left side of cartridge access doorFind 12
13RC1-4058-000CNTray hinge - Right side hinge for drop down tray 1 assemblyFind 13
14RM1-1523-000CNMP/Tray 1 cover assembly - Includes drop down, pull out and flip out traysFind 14
15RM1-1490-000CNMP/Tray 1 support assembly - Hinged support and adjustable paper width guide assembly - Tray 1 cover assembly attaches to this assemblyFind 15
16RC1-4057-000CNTray hinge - Left side hinge for drop down tray 1 assemblyFind 16
17RC1-4148-000CNLeft cover - Left side of printer plastic coverFind 17
18RM1-1517-020CNRear cover assembly - Drop down face up paper output tray assemblyFind 18
19RM1-1514-000CNTop cover assembly - Top of printer cover and face down paper output tray assemblyFind 19

Internal Components (1 of 4)

HP LaserJet 2420 Internal Components (1 of 4)

Pic No.Parts IDParts NameLink
1RM1-1521-030CNLaser/Scanner assembly - Mounts on top of print structureFind 1
2RC1-4128-020CNPlastic duct that vents air from the lower right front fan to the laser/scanner.Find 2
3RU5-2404-000CNCompression spring - Spring provides pressure to the laser shutter which when pulled back (spring is compressed) enables the laser scanner shutter by pressing up the plastic mechanical link on the underside of the laser/scanner assemblyFind 3
4RC1-4125-000CNLaser shutter link - Enables the laser scanner shutter by pressing up this link on the underside of the laser/scanner assemblyFind 4
5RC1-4129-000CNSmall vent duct to route air from the fan (FM2) to the cartridge areaFind 5
6XB2-7300-605CNMachine screw with attached washer - M3, 6mm - Used to hold plastic to metalFind 6
7RC1-4121-020CNLeft upper toner cartridge guideFind 7
8RC1-4123-020CNCartridge clamp lever - Attaches to upper left toner cartridge guide - Provides mechanical lock for toner cartridgeFind 8
9RC1-3949-000CNLeft middle guide - Small black plastic cassette guide on left side of printerFind 9
10RC1-4138-000CNCartridge lever - Link that pushes contact cam and protective plate when cartridge is insertedFind 10
11RC1-4122-000CNLeft lower toner cartridge guideFind 11
12RC1-3948-000CNLeft front guide - Small black plastic piece on front left side of chassis in Tray 2 cassette guide slotFind 12
13RA0-1003-000CNRubber foot - For bottom of printer - Three usedFind 13
14RC1-3946-000CNFront base plate - Metal plate that fits under fuser assemblyFind 14
15RC1-4055-000CNDoor arm - White plastic arm that connects to left side cartridge access doorFind 15
16RU5-2407-000CNTension spring - Provides tension for cartridge access door armFind 16
17RC1-4056-000CNDoor arm guide - White plastic guide for cartridge door leverFind 17
18RC1-4059-000CNTorsion spring - Tiny spring that attaches to small metal U-shaped cartridge grounding contact - Rear cartridge contact springFind 18
19RC1-4060-000CNGrounding contact - Tiny U-shaped metal cartridge grounding contact - Contacts copper grounding strip on left side of toner cartridgeFind 19
20RC1-4061-000CNTorsion spring - Tiny spring that attaches to small metal U-shaped cartridge grounding contact - Front cartridge contact springFind 20
21RC1-4065-000CNGrounding contact lever - Lever on left side that is moved by contact when the toner cartridge is installedFind 21
22RC1-4066-020CNGrounding contact lever - Lever on left side that pushes both contact springs against toner cartridge contacts on left side of cartridgeFind 22
23RC1-4067-000CNLeaf spring - Leaf spring that provides electrical connection to left side of toner cartridgeFind 23
24RC1-4140-000CNCompression spring - Provides pressure to grounding contact link on left side of cartridge guide - Pushes link arm away when cartridge is removedFind 24
25RU5-2410-020CNTorsion spring - Provides pressure to move protective plate back into cartridge compartment when the cartridge is removedFind 25
26RU5-2403-000CNTension spring - Provides tension for cartridge clamp lever that holds lefts side of cartridge in a stable position when insertedFind 26
27RG5-1928-000CNRegistration cable assembly - Includes 7P and 3P connectorsFind 27
28RC1-4136-000CNProtective plateFind 28
29RC1-4137-020CNContact cam - Vertical piece that inserts into protective plateFind 29
30RK2-0573-000CNCooling fan - Fan FM2 - Located on lower left side of printerFind 30
31RC1-4134-000CNFan holder - FM2 fan holder housingFind 31
32WT2-5694-000CNSnap-in cable clampFind 32
33RC1-4009-000CNPlate holder - Holds the left rear corner of the paper access plate (duplex pan)Find 33
34RC1-3950-000CNCassette guide - Rear left black plastic paper cassette guideFind 34
35RC1-3951-000CNCassette guide - Right front side black plastic paper cassette guideFind 35
36RC1-3953-000CNCassette guide - Right rear black plastic paper cassette guideFind 36
37RC1-4126-000CNReader holder cover - Plastic housing that covers cartridge E-label reader and holder assemblyFind 37
38RU5-2405-000CNCompression spring - Provides pressure for E-reader holderFind 38
39RC1-4127-000CNE-label reader holder - Housing that holds cartridge E-label readerFind 39
40RM1-1422-000CNReader and cable - E-label reader contact mechanism - Connection to read data from toner catrtridge - Includes cableFind 40
41RM1-1516-090CNEngine controller assembly - Engine controller PC board and metal pan - 110/127 VACFind 41
41RM1-1524-090CNEngine controller assembly - Engine controller PC board and metal pan - 220-240 VACFind 41

Internal Components (2 of 4)

HP LaserJet 2420 Internal Components (2 of 4)

Pic No.Parts IDParts NameLink
1RC1-4170-000CNSwitch link - Mechanical link between power button and ECU boardFind 1
2RC1-4169-000CNSwitch link holder - Supports mechanical link between power button and ECU boardFind 2
3RK2-0534-000CNMicroswitch - Door open switch (SW501)Find 3
4RC1-4132-000CNTest switch lever - Mechanical link to test engine switchFind 4
5RC1-4130-000CNAir duct - Inside half of air duct from fan FM2 in lower right front corner of printer -Black plasticFind 5
6RC1-4131-000CNAir duct - Outside half of air duct from fan FM2 in lower right front corner of printer -Black plasticFind 6
7RK2-0526-000CNTray 1 paper pickup solenoid - Solenoid SL1Find 7
8RC1-4133-000CNMain fan holder - Plastic fan holder for main cooling fan FM1 - Located lower right front sideFind 8
9RK2-0571-000CNCooling fan - Main cooling fan FM1 - Located in lower right front sideFind 9
10RM1-1482-020CNPaper pickup roller gear asembly - Gears that attach to Tray 2 pickup rollerFind 10
11RK2-0526-000CNTray 1 paper pickup solenoid - Solenoid SL1Find 11
12RC1-3995-000CNTorsion spring - Provides tension and holds small individual feed roller that rides against face down shaft roller - Four usedFind 12
13RC1-4113-000CNRight base plate - Metal plate under right side of printerFind 13
14RM1-1485-000CNRoller assembly - Black plastic housing that holds rollers in front of tray 2 pickup roller assemblyFind 14
15RM1-1507-000CNLower feed guide assemblyFind 15
16RC1-4096-000CNGuide assembly - Duplexer portion paper input guide assemblyFind 16
17RC1-3665-000CNShaft bushing/retainer - Small plastic cylinder with four nubs that twist - Locks into the side frameFind 17
18RC1-3998-000CNRoller holder - Holder for small paper delivery rollers at top rear of printer - Four usedFind 18
19RC1-3996-000CNDelivery roller - Small paper delivery rollers at top rear of printer - Four usedFind 19
20RC1-4000-000CNCable cover - Fuser cable cover - Black plastic cover that protects cable in left rear portion of printerFind 20
21XB2-7300-605CNMachine screw with attached washer - M3, 6mm - Used to hold plastic to metalFind 21
22RC1-3995-000CNTorsion spring - Provides tension and holds small individual feed roller that rides against face down shaft roller - Four usedFind 22
23RC1-3994-000CNFace down roller - Small individual feed roller that rides against face down shaft roller - Held by torsion spring - Four usedFind 23
24WG8-5624-000CNPhoto-sensor (TLP1241) - Sensor flag activatedFind 24
25RC1-4006-000CNCable guide - Small black plastic tray that supports and protects cables that go across rear of printer behind laser scannerFind 25
26RL1-0580-000CNFace down output roller - Paper exit roller - Black plastic shaft with four rollers attachedFind 26
27RL1-0580-000CNFace down output roller - Paper exit roller - Black plastic shaft with four rollers attachedFind 27
28RM1-1535-080CNFuser assembly - For 110 VAC - Bonds toner to paper with heatFind 28
28RM1-1537-050CNFusing assembly - For 220 VAC - Bonds the toner to the paper with heatFind 28
29RM1-1481-020CNPaper pickup assembly - Tray 2 paper pickup assemblyFind 29

Internal Components (3 of 4)

HP LaserJet 2420 Internal Components (3 of 4)

Pic No.Parts IDParts NameLink
1RM1-1500-000CNFuser drive side plate assembly - Drive gear assembly and mounting plate for fuser - Located on right side of printerFind 1
2XB2-7300-605CNMachine screw with attached washer - M3, 6mm - Used to hold plastic to metalFind 2
3RU5-2401-000CNCompression spring - Provides pressure for the large 201-tooth white gear on right side of printerFind 3
4RU5-0389-000CNGear - Large white plastic 201 tooth gear on right side of printerFind 4
5RC1-4114-000CNCam - Located between large white 201-tooth gear and drive release leverFind 5
6RC1-4115-000CNCoupling lever - White plastic lever between large white gear cam and drive release assemblyFind 6
7RC1-4105-000CNInner bushing - Bushing that large white 201 tooth drive gear rides onFind 7
8RM1-1522-020CNDrive release assemblyFind 8
9RC1-4117-000CNDrive release link -Find 9
10RC1-4116-000CNDrive release leverFind 10
11RA0-1172-000CN17-tooth gear assembly - Includes the 17-tooth gear mounted on a black plastic lever/bracketFind 11
12RC1-4106-020CNUpper right toner cartridge guideFind 12
13RC1-4185-000CNCompression spring - Spring under transfer plate that provides electrical connection to transfer plateFind 13
14RM1-1506-000CNPosition guide assembly - Guides the paper along the right side duplex path - Attaches just above power supplyFind 14
15XB4-7401-005CNM4 pan-head phillips screw with self-tapping threads - 10mm longFind 15
16RC1-4085-000CNGrounding plate - High voltage power supply grounding plate - Attaches to left rear of power supplyFind 16
17RU5-2408-000CNCompression spring - Right side transfer roller spring - Provides tension for transfer rollerFind 17
18RM1-1504-000CNPaper feed guide assemblyFind 18
19RU5-0378-000CN20 tooth gear - 20 tooth gear in fuser drive assembly on right rear of printerFind 19
20RU5-0377-000CN28 tooth gear - 28 tooth gear in fuser drive assembly on right rear of printerFind 20
21RC1-4025-000CNStatic charge eliminator - Comb that mounts above upper delivery roller that dissipates static charge as paper exits printerFind 21
22RU5-0379-000CN19 tooth gear - 19 tooth gear in fuser drive assembly on right rear of printerFind 22
23WT2-5056-000CNCable clip - 'C' shaped White plasticFind 23
24RK2-0523-000CNElectric stepper motor - Fuser drive assembly motor - Motor M2Find 24
25XA9-1503-000CNM3 truss head (Flanged) phillips screw (Black oxide finish) - 6mm longFind 25
26RM1-1505-000CNHigh voltage power supply boardFind 26

Internal Components (4 of 4)

HP LaserJet 2420 Internal Components (4 of 4)

Pic No.Parts IDParts NameLink
1RC1-3936-020CNRegistration roller assembly coverFind 1
2RC1-3935-000CNFeed guide assembly - Mounts above transfer roller assemblyFind 2
3XB4-7401-005CNM4 pan-head phillips screw with self-tapping threads - 10mm longFind 3
4RU5-0409-000CNRegistration roller gear - Mounts on the end of the registration roller - 14-tooth gearFind 4
5RC1-4189-000CNGear stopper - Small bushing between right side of registration assembly and registration roller drive gearFind 5
6RL1-0581-000CNTransfer plate - Paper guide plate that mounts under transfer roller assemblyFind 6
7RA0-1068-000CNContinuity cap - Gear retainer for 30 tooth Tray 1 pickup roller shaftFind 7
8RU5-0366-000CNGear - 30-tooth - Attaches to right side end of tray 1 pickup roller shaftFind 8
9RU5-2385-000CNCompression spring - Provides pressure for tray 1 seperation padFind 9
10RC1-4107-000CNCartridge guide - Lower right side toner cartridge guideFind 10
11RC1-0939-000CNMulti-purpose/tray 1 separation pad - Does not include holderFind 11
12RC1-3937-000CNSeparation pad holderFind 12
13RC1-3939-000CNPaper sensor lever - Mechanical device that activates photo sensor (PS902) - For tray 1Find 13
14RU5-2386-000CNTorsion spring - Provides tension for tray 1 paper sensor flagFind 14
15RM1-1416-000CNRegistration sensor - Top of page photosensor PC board - PS901Find 15
16RC1-4083-000CNPaper guide - Located under the registration roller assemblyFind 16
17RL1-0568-000CNTray 1/MP tray pickup roller - D-shaped replacement pickup rollerFind 17
18RM1-1484-000CNTray 1/MP Tray pickup roller shaft assembly - Includes roller shaft, bushings and pickup rollerFind 18
19RU5-0400-000CN12-tooth gear - On left side of registration roller assemblyFind 19
20VS1-7257-007CNDrawer connector - Connector located on top of tray assembly frame (right side), which connects tray assemblies to each otherFind 20
21RC1-4108-000CNCover for main motor M1 - Located on lower right side of printerFind 21
22RC1-3954-000CNGear cover - Covers fusing and duplexer gears on lower right rear of printerFind 22
23RL1-0587-000CNMain motor - 26.2 watt DC motor on lower right side of printer - Motor M1Find 23
24RM1-1508-000CNTransfer roller assembly - Long metal shaft with black roller - Includes right side bushing and tension springFind 24
25RC1-0922-000CNRoller bushing - Right side transfer roller bushingFind 25
26RC1-4028-000CNTorsion spring - Provides tension for top of page sensor flagFind 26
27RC1-4027-000CNSensor lever - Top of page sensor flag - Used to detect edge of paperFind 27
28RM1-1502-020CNRegistration roller assembly - Two roller shafts with six rollers each and frame assemblyFind 28

Tray 2 Pickup Assembly

HP LaserJet 2420 Tray 2 Pickup Assembly

Pic No.Parts IDParts NameLink
1RM1-1481-020CNPaper pickup assembly - Tray 2 paper pickup assemblyFind 1
2RL1-0542-000CNPickup roller - Tray 2 paper pickup rollerFind 2

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