HP Laserjet 5 Manual
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6Remove the (1) one-way gear shown in Figure A-21, callout 1. NoteThe one-way gear must be reassembled correctly. With the gear on the shaft, turn the gear clockwise. The shaft should move the belt. Turning the gear counter clockwise should result in no movement of the shaft and belt. 7Remove the (1) E-clip from behind the first gear (see Figure A-21, callout 2). 8Remove the (2) gears shown in Figure A-21, callouts 3 and 4. 9Slip the belt off the gears. Note Verify proper wire routing when reassembling. Figure A-21 Holding Tray Gears and Belt Duplexer A -25
Removing the Holding Tray Paper Sensor 1Release the output holding tray. 2Remove the (2) screws from the stepper motor mount and remove mount. (This provides access to the paper sensor latches.) 3Squeeze the (2) latch points of the paper sensor to release (see Figure A-22). 4Disconnect the connector and remove the paper sensor. Figure A-22 Holding Tray Paper Sensor A -26 Duplexer
Removing the Switchback Assembly 1Pull out the pin located on the Power PCA side (see Figure A-23, callout 1). 2Release the (1) E-clip on the upper pin near the retaining arm (see Figure A-23, callout 2). 3Pull the retaining arm off the pin. 4Rotate the switchback assembly and remove. 5Unplug the connectors. Figure A-23 Switchback Assembly Hinge Pins Duplexer A -27
Parts and Diagrams for the Duplexer The figures in this section illustrate the major subassemblies and component parts of the HP LaserJet 4+/5 Duplexer. Note Not all duplexer parts are orderable. The parts listed are the only orderable parts. Parts that have no reference designator or part number are not field-replaceable and cannot be ordered through HP. A -28 Duplexer
Ref Part # Notes Description 1 RA2-2061-000CN RA2-2231-000CNLJ4+ LJ5Front Cover 2 RA2-2096-000CN RA2-2232-000CNLJ4+ LJ5Left Cover 3 RA2-2097-000CN RA2-2233-000CNLJ4+ LJ5Right Cover 4 RA2-2098-000CN RA2-2237-000CNLJ4+ LJ5Rear Lower Cover 5 RG1-3508-000CN RG1-3570-000CNLJ4+ LJ5Rear Cover Assembly 5A RA2-2100-000CN LJ4+ Latch 5B RS1-2413-000CN RS5-2571-000CNLJ4+ LJ5Compression Spring Table A-24 Duplex External Covers A -30 Duplexer
Figure A-25a Duplex Feeder Assembly (1 of 2) Duplexer A -31
Figure A-25b Duplex Feeder Assembly (2 of 2) A -32 Duplexer
Ref Part # Notes Description 1 RA2-2069-000CN LJ4+/5 PCA Shield Plate 2 RA2-2070-000CNLJ4+/5 Static Eliminator sml 3 RA2-2072-000CN LJ4+/5 Timing Belt 4 RA2-2076-000CN LJ4+/5 Sensor Arm 5 RA2-2078-000CN LJ4+/5 Rod Crank 6 RA2-2079-000CNLJ4+/5 Front Cover Rod 7 RA2-2081-000CN LJ4+/5 Hold Tray Rear Guide 8 RA2-2082-000CN LJ4+/5 Hold Tray Front Guide 9 RA2-2085-000CN LJ4+/5 Front Guide 10 RA2-2115-000CNLJ4+/5 Stepped Scr M3 by 6.5 11 RA2-2126-000CN LJ4+/5 Static Eliminator 12 RB1-2114-000CN LJ4+/5 Foot (Qty 4) 13 RB1-2155-000CN LJ4+/5 Oblique Roller 14 RF1-3805-000CNLJ4+/5 Roller Holder (Qty 3) 15 RG1-3503-000CN LJ4+/5 Power Supply Assembly 16 RG1-3530-000CN LJ4+/5 Paper Pickup Cable 17 RG1-3531-000CN LJ4+/5 Paper Feed Cable 18 RG1-3533-000CNLJ4+/5 Power Supply Cable 19 RF1-3807-000CN RF1-3815-000CNLJ4+ LJ5Front Holding Tray Mtr (M1) 20 RF1-3804-000CN RF1-3813-000CNLJ4+ LJ5Rear Holding Tray Mtr (M3) 21 RS1-0586-000CN LJ4+/5 Gear 40T/24T (Qty 2) 22 RS1-0587-000CN LJ4+/5 Gear 24T/18T (Qty 2) 23 RS1-0588-000CN LJ4+/5 Gear 33T/20T (Qty 2) 24 RS1-0595-000CNLJ4+/5 Gear Roller (Qty 4) Table A-25 Duplex Feed Assembly Duplexer A -33
Ref Part # Notes Description 25 RS1-2406-000CN LJ4+/5 Torsion Spring (Qty 3) 26 RS1-2407-000CNLJ4+/5 Torsion Spring 27 RS1-2409-000C N LJ4+/5 Tension Spring 28 RS1-7010-000CN LJ4+/5 Shaft 29 WG8-5210-000CN LJ4+/5 Photo Interrupter 30 RG1-3501-000CN RG1-3582-000CNLJ4+ LJ5Duplex Control PCA 31 RF1-3817-00017LJ5 Duplex Roller Holder A -34 Duplexer