HP Laserjet 5 Service Manual
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4Using needlenose pliers, pull the bottom of the bushing out (Figure 6-24, callout 1), then turn it counter clockwise to release it (Figure 6-24, callout 2). Pickup Roller Assembly Removal (2 of 2) 5Lift the bushing out. 6From inside the front of the printer, slide the right side of the Pickup Roller Assembly forward, then lift the left side out. Figure 6-24 6 - 28 Removal and Replacement
To reinstall After placing the Pickup Roller shaft through on the left side, line up the Idler Roller tabs while repositioning the right side. Rock the shaft back and forth until the Pickup Roller and the Idler Roller tabs are correctly reinstalled. NoteIt is important that the Pickup Roller is placed back in with the two Idler Roller tabs up, so that they fit into the underside of the metal chassis behind the Laser/Scanner assembly (Figure 6-25). Paper Pickup Roller Assembly Replacement (Inside/Front View) Figure 6-25 6 Removal and Replacement Removal and Replacement 6 - 29
Paper Feed Frame 1Remove the Printer Covers. 2Remove the Pickup Roller Assembly (Figures 6-23 through 6-24). 3Disconnect the following: ·Solenoid from the DC Controller at J204 (Figure 6-22, callout 1) ·Two connectors from the Laser/Scanner (Figure 6-26, callout 1) ·Connector from Top Cover/EP Cartridge Sensor on HP LaserJet 5L only (Figure 6-26, callout 2) ·Connector from Switch 101 (Figure 6-26, callout 3) ·Connector from Front Control Panel (Figure 6-26, callout 4) Paper Feed Frame Removal (1 of 4) Figure 6-26 6 - 30 Removal and Replacement
4Release the catch on the control panel cable guide by using the small flathead screwdriver to push on the tab (Figure 6-27). Then slide the guide off. Paper Feed Frame Removal (2 of 4) Figure 6-27 6 Removal and Replacement Removal and Replacement 6 - 31
5Remove the self-tapping screw from the back sheet metal plate and lift it off (Figure 6-28, callout 1). 6Remove the (4) hex head screws from the Paper Feed Frame (Figure 6-28, callout 2). Paper Feed Frame Removal (3 of 4) Figure 6-28 6 - 32 Removal and Replacement
7Release the sensor unit connector (Figure 6-29). Paper Feed Frame Removal (4 of 4) 8Verify that all cables are clear of the frame and pull the frame straight back to remove it. To reinstall The Paper Feed Frame may be easier to reinstall if you place the printer on its front, so that you can apply pressure while putting the screws back in place. Figure 6-29 6 Removal and Replacement Removal and Replacement 6 - 33
Transfer Roller Guide & Transfer Roller 1Remove the Printer Covers, Pickup Roller Assembly (Figures 6-23 through 6-25), and Paper Feed Frame (Figures 6-26 through 6-29). 2Looking at the back of the printer, note the two small, hook-shaped release tabs on each end of the Transfer Roller guide. Using a small, flathead screwdriver, carefully pry each tab outward to release it (Figure 6-30). 3Roll the released portion of the guide up. To remove the Transfer Roller Guide, pull it off each end of the Transfer Roller shaft. Transfer Roller Guide & Transfer Roller Removal (Inside/Back View) 4This exposes the Transfer Roller. WARNING!Do not touch the Transfer Roller or otherwise allow it to be contaminated. 5Working from the front of the printer, gently pry the gear side of the Transfer Roller out first, then slide the other side out of its socket. To reinstall Some of the HP LaserJet 5L Printers contain a small metal spring under the Transfer Roller Guide. Upon reinstallation with these models, the small metal spring should rest under the Transfer Roller Guide. Figure 6-30 6 - 34 Removal and Replacement
Kick Plate CautionBe careful working with the Kick Plate and Separation Pad. The spring underneath the Kick Plate may stay attached to the Kick Plate, but it is also likely to spring away from the Kick Plate. Place the spring aside for Separation Plate disassembly. 1Remove the Printer Covers and the Pickup Roller Assembly (Figures 6-23 and 6-24). 2Press the Separation Pad (Figure 6-31). Allow the Kick Plate to pivot upward (a spring underneath will push it up). Lift the Kick Plate off its mounting pins. Kick Plate Removal Figure 6-31 6 Removal and Replacement Removal and Replacement 6 - 35
To reinstall If the spring on the Kick Plate doesn’t stay on the Kick Plate, replace the spring, making certain the diameter of the spring surrounds two lower pins on the Kick Plate and rests inside the third pin. Use needlenose pliers to place the spring correctly. (See Figure 6-32.) Kick Plate Spring Replacement While rotating the Kick Plate into place, guide the other end of the spring onto the silver grounding plate located on the Paper Feed Frame. Figure 6-32 6 - 36 Removal and Replacement
Separation Pad 1Remove the Printer Covers, Pickup Roller Assembly (Figures 6-23 and 6-24), and Kick Plate (Figure 6-31). 2Lift the bottom of the white plastic tab on the rear of the Paper Feed Frame up slightly and slide it up, toward the top of the Paper Feed Frame. This will release the Separation Pad (Figure 6-33). 3Lift the Separation Pad 90 degrees and slide its mounting pins out of their retainers. Separation Pad Removal Figure 6-33 6 Removal and Replacement Removal and Replacement 6 - 37