HP LaserJet 1160, 1320, Service Manual

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Duplex-drivePCA

1.Remove all covers (see Covers).

2.Disconnect the duplex-drivecable (callout 1) at the ECU and route the cable through the hole in the chassis.

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Figure 6-17. Removing theduplex-drivePCA (1 of 2)

3. Disconnect one cable (callout 2) from the duplex-drivePCA.

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Duplex-drivePCA99

4. Remove one screw (callout 3) and then lift the duplex-drivePCA off of the printer.

Figure 6-18. Removing theduplex-drivePCA (2 of 2)

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Fuser

Several parts must be removed before you can remove the fuser. The following parts are included in this section about removing the fuser:

Fan

Duplex-drivegears/face-downgears

Duplex solenoid

Fuser

Fan

1.Remove all covers (see Covers).

2.Disconnect the fan cable (callout 1) at the ECU.

Figure 6-19. Removing the fan (1 of 2)

3. Remove two screws (callout 2).

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4. Unhook the fan clip (callout 3) and then lift the fan off of the printer.

Reinstallation tip

Use the fan clip to hold the fan in place before replacing the screws.

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NOTE

Figure 6-20.

NOTE

Duplex-drivegears/face-downgears

HP LaserJet 1320 Series printers contain duplex-drivegears. HP LaserJet 1160 printers containface-downgears.

1.Remove all covers (see Covers).

2.Remove the fan (see Fan).

3.Remove three screws (callout 1) and then lift the assembly away from the printer.

Removing the duplex-drivegears/face-downgears

The gears are not attached to the gear plate. Carefully remove the gear plate and the gears together to prevent them from falling out of the assembly.

Reinstallation tip

You might find it easier to replace the assembly if you place the two large gear-setsinto their holes on the chassis first, and then line up the holes in the gear plate with the gears as you replace the gear plate.

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Figure 6-21. Duplex-drive gears (HP LaserJet 1320 Series printers) and Figure 6-22. Facedown gears (HP LaserJet 1160 printers) show the differences between duplex-drive gears and face-down gears. For HP LaserJet 1320 Series printers, make sure that you replace the gears as shown in Figure 6-21. Duplex-drive gears (HP LaserJet 1320 Series printers).

Figure 6-21. Duplex-drivegears (HP LaserJet 1320 Series printers)

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Figure 6-22. Face-downgears (HP LaserJet 1160 printers)

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Duplex solenoid (SL3) (HP LaserJet 1320 Series printers only)

1.Remove all covers (see Covers).

2.Remove the fan (see Fan).

3.Remove the duplex-drivegears (seeDuplex-drive gears/face-down gears).

4.Disconnect one cable (callout 1) at the duplex-drivePCA.

5.Remove one screw (callout 2) and lift the solenoid off of the printer chassis.

Figure 6-23. Removing the duplex solenoid

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Fuser

1.Remove all covers (see Covers).

2.Remove the fan (see Fan).

3.Remove the duplex-drivegears orface-downgears (seeDuplex-drive gears/face-down gears).

4.Remove the formatter (see Formatter).

5.On the right side of the printer, press the tabs on two gears (callout 1) to release the gears, and then slide the gears off of the shafts.

6.Disconnect one cable (callout 2) on the right side of the printer.

Figure 6-24. Removing the fuser (1 of 10)

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7.Disconnect four cables (callout 3) from the ECU, and then disconnect two more cables (callout 4) that were behind the first set.

Figure 6-25. Removing the fuser (2 of 10)

8.Pull the tab on the cable holder (callout 5) at the left side of the printer and slide it toward the center to release it from the frame, and then unroute the cables.

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