HP Laserjet 4 Manual
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Ref Part # Notes Description 1 RB1-2236-000CN Guide, Feeder 2 RB1-2253-000CN Roller, Guides (6) 3 XA9-0623-000CN Hex Head Screw 4 RG5-0468-000CN RG5-2192-000CNLJ4/4+ LJ5Transfer Block Ass’y 5 RB1-2251-000CN Block, Connecting 6 RG5-0521-000CN RG5-0979-000CNLJ4 LJ4+/5Cable, D.C. Controller /Interconnect PCA 7 RG5-0515-000CN Connector PCA Ass’y 8 RG5-0513-000CN RG5-0969-040CNLJ4 LJ4+/5High Voltage PCA 8 C2001-69009 C2037-69009LJ4 LJ4+/5High Voltage PCA (exchng) 9 RB1-2226-000CN Cover, High Voltage 10 RF5-0369-040CN Holder, Paper, Front 11 RB1-2259-040CN Holder, Paper, Rear 13 RF5-0349-000CN Roller, Transfer Table 8-4dInternal Components (Section 4) Parts and Diagrams 8-21
Figure 8-5 Main Switch Assembly 8-22 Parts and Diagrams
Ref Part # Notes Description 1 RB1-2118-000CN RB1-7906-000CNLJ4/4+ LJ5 SBase, Switch Mounting 2 RB1-2119-000CN RB1-7907-000CNLJ4/4+ LJ5 SSwitch 3 RB1-2345-000CN S Cover (LJ4/4+ only) 4 RG5-0524-000CN J201/ J601Cable, Paper Control PCA/ DC Controller 5 RG5-0530-000CN J603/ J135Cable, Lower Feed Assembly Table 8-5Main Switch Assembly Parts and Diagrams 8-23
Figure 8-6a Paper Feed Assembly (1 of 2) 8-24 Parts and Diagrams
Figure 8-6b Paper Feed Assembly (2 of 2) Parts and Diagrams 8-25
Ref Part # Notes Description RG5-0451-000CN RG5-0877-000CN RG5-2195-000CNLJ4 LJ4+ LJ5Paper Feed Assembly C2001-69005 C2037-69003 C3916-69005LJ4 LJ4+ LJ5Paper Feed Ass’y (exchng) 1 RB1-2126-000CN RB1-3477-000CN RB1-7911-000CNLJ4 LJ4+ LJ5Roller, Pickup, PC Tray Roller, Pickup, Tray 2 2 RB1-2127-000CN RB1-2205-000CNLJ4/4+ LJ5Roller, MP Tray Pickup Roller, Tray 1 Pickup 5 RB1-2138-000CN Lever, Switch 14 RG5-0529-000CN Cable, Env. Feeder 15G RF5-0343-000CN Pad, Separation 15K RG5-0514-000CN PCA, Sensor (PS4, PS5) 19 RB1-2181-000CN Holder, Guide Roller 20 RB1-2182-000CN Roller, Guide 21 RB1-2179-000CN Pin, Sensor Holder 22 RG5-0466-000CN Assembly, Sensor Holder 22A RB1-2133-000CN Paper Sensor Flag 22E WG8-0291-000CN Qty 2 Photo-Sensor (PS1, PS2) 23 RG5-0467-060CN Assembly, MP Tray (Tray 1) Base 25 RG5-0512-070CN Paper Control PCA 26 RH7-1136-000CN RH7-1197-000CNLJ4 LJ4+/5Motor, Paper Pickup 28 RH7-5070-000CN RH7-5071-000CNLJ4 LJ4+/5PC (Tray 2) Pickup Solenoid (SL1) 40 RH7-5074-000CN RH7-5075-000CNLJ4 LJ4+/5MP (Tray 1) Pickup Solenoid (SL2) 41 RB1-2139-030CN Paper Sensor Leaf Spring Table 8-6Paper Feed Assembly 8-26 Parts and Diagrams
Figure 8-7 MP Tray (Tray 1) Assembly Part # Notes Description RG5-0472-000CN RG5-0888-000CN RG5-2199-000CNLJ4 LJ4+ LJ5Multi-Purpose Tray Assembly Tr a y 1 A s s e m b l y Table 8-7MP Tray (Tray 1) Assembly Parts and Diagrams 8-27
Figure 8-8 Paper Output Assembly Ref Part # Notes Description RG5-0456-000CN RG5-0886-000CN RG5-2189-000CNLJ4 LJ4+ LJ5Paper Output Assembly 2 RB1-2299-030CN 4 ea. Rollers, Delivery 3 RB1-2302-000CN 4 ea. Spring, Roller 7 RF5-0425-040CN 4 ea. Holder, Roller 13 RS5-2185-000CN RS5-2267-000CNLJ4 LJ4+/5 4 ea.Spring, Compression 14 XF9-0410-000CN Belt, Timing 15 RF5-0438-000CN RF5-1077-030CNLJ4 LJ4+/5Roller, Lower Delivery 16 RF5-0534-000CN RF5-1076-020CNLJ4 LJ4+/5Roller, Upper Delivery 17 RF5-0532-000CN RF5-0647-000CNLJ4/4+ LJ5Upper Guide, Delivery Table 8-8Paper Output Assembly 8-28 Parts and Diagrams
Figure 8-9 Delivery Sensor Assembly Ref Part # Notes Description RG5-0475-060CN Assembly, Delivery Sensor 5 WG8-0291-000CN Photosensor, (PS3) 6 RG5-0522-000CN RG5-0980-000CNLJ4 LJ4+/5Cable, Delivery Sensor Table 8-9Delivery Sensor Assembly Parts and Diagrams 8-29
Figure 8-10 Fuser Assembly 8-30 Parts and Diagrams