HP CLJ 2600n Fuser Access

1) Paper Tray

2) Right Side Cover
> One M3x8mm washerhead screw at lower rear.
> Tug the cover away at the lower rear and it will pop free.

3) Left Side Lower Cover (Handgrip Portion of Cover)
> One M3x8mm washerhead screw in handgrip well.
> One claw in front; two claws at underside. Pry the cover away.

4) Left Side Upper Cover
> Pry at the rear edge to free it.

5) Top Cover Grey Inset
> There are two arrowhead marks at the rear. Pry there to free the inset.

6) Top Cover
> Four M3x8mm washerhead screws.
> One flat cable connection.
> Lift the cover away.

7) Face-Down Delivery Platform
> Pry at the rear edge to free it.

8) Cable/Wire Connections
> Cable connection at fuser motor.
> Cable connection at J204.
> Power cable connection at J203. Free the cable from its restraints. The ty-wrapped restraint can be pried up out of the PCA.
> Two sensor cable connections at the left side. CAUTION -- it's easy to dislodge the sensors when disconnecting their cables.
> One red wire terminal at the left side.

9) Fuser
> Two M3x8mm washerhead screws at the fuser's rear -- they're marked by arrowheads.
> One M3x8mm washerhead screw at the right lower rear of the fuser.

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Okidata Microline 380 Teardown

Following is a procedure for a complete teardown to thoroughly clean a machine and restore it to good order.

1) Platen Knob

2) Access Cover
> Lift the cut-sheet guide slightly and tip it back so it lies flat.
> Open the access cover fully.
> Tug leftward near the left side hinge to free it.

3) Cut-Sheet Guide
> Spread its hinge 'ears' to free it.

4) Paper Separator
> Tip it rearward to free its clips from the platen bearings.

5) Main Cover
> Two M4x10mm pan head screws w/captive washers at the rear.
> Tip the cover up at the rear to remove it.

6) Mechanism
> Ground wire terminal at right side end of carriage rail -- one M3x8mm pan head screw w/captive washers.
> Ground strap end behind transformer -- one M3x6mm pan head screw w/captive washers.
> Two flat cables in ZIF connectors.
> Four cable connections.
> Four claws hold the mechanism to the base pan -- two at the left; two at the right.

7) Transformer w/Attached PCA and Line Cord
> One cable connection.
> Two ground terminal screws -- M4x8mm pan head w/captive washers.
> Four M4x8mm pan head screws w/captive washers.

8) Main Logic PCA w/Control Panel
> One M3x6mm pan head screw w/captive washers by the interface connector.
> Four M3x8mm pan head threading screws.
> Two claws, left and right sides near the front.

9) EMI/RFI Shield
> Four M3x8mm pan head threading screw.
> Push down on one claw near the right side end to let the item move rightward.

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Mechanism Teardown

1) Printhead

2) Card Guide

3) Platen

4) Left Side Bail Lever and Spring

5) Bail Rod

6) Right Side Bail Lever and Spring

7) Platen Cradle

8) LF Motor

9) Change Lever

10) Change Gear and Spring
> NOTE that the gear's extended hub goes out.

11) Idler Gear
> NOTE that the flanged end goes inboard.

12) Pinch Rollers Lever and Pinch Rollers Assembly

13) Tractor Drive Gear

14) Tractor Drive Shaft (Square Shaft)

15) Tractors Assembly

16) Tension Strip

17) Carriage Belt Tensioner Clamp Screw
> One M3x6mm pan head threading screw w/loose flat washer.

18) Carriage Belt Tension Spring

19) Carriage Belt off its Pulleys

20) Carriage Belt Idler Pulley

21) Carriage Motor Assembly
> Two claws.

22) Carriage
> Two M3x8mm pan head screws w/captive washers.
> Carefully free the flat cables from their restraints.

23) Front Carriage Rail/Ribbon Drive Rack

24) Left (white) and Right (black) Carriage Rail Eccentric Adjustment Bushings
> NOTE the factory alignment marks.

25) Carriage Rail w/Carriage Frame

26) Bail and Home Sensing Switches
> NOTE: The bail sensing switch's retainer is likely to break.

27) Optical Sensor

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NOTES

A) Leave off the bail components at reassembly until the printhead/platen gap adjustment has been performed.

B) Printhead/platen gap is 0.016" at thickness setting '1'. Gap/parallelism adjustment is done with the eccentric bushings at the ends of the carriage rail.

C) To enter Menu Mode, have paper loaded, press FONT and PITCH simultaneously.

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