Text preview for : part2 of Chap_8_Remove_Replace.pdf part of HP DESIGNJET 430 PART 1 OF CHAPTER 8
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Removing the Service Station
Removal 1. Remove the left end cover ' page 8 10.
2. Disconnect the four short tubes from the primer ink separator.
3. Remove the screw that attaches the service station to the left side plate.
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4. Slide the service station to the left, and remove it from the Printer.
The service station is one orderable assembly. Do not open it.
Reassembling: Ensure that the cartridge caps are clean, the wipers straight, and the openings clear.
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Removing the Bail Lift Mechanism
Removal 1. Remove the Bail Assembly ' page 8 7.
2. Remove the Primer Assembly ' page 8 25. 3. Remove the Service Station ' page 8 26. 4. While pushing the top of the bail gear assembly towards the front of the
Printer,
do the following: 1. On the engaging lever, move the cable ball slightly towards the back of the Printer.
2. Allow the engaging lever to move towards the left of the Printer, so that the cable comes free of the lever.
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5. Release the cable from the engaging lever support.
6. Release the cable from the bail gear assembly.
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7. Remove the engaging lever.
8. Remove the spring from the bail gear assembly.
9. Loosen the screw from the top of the bail gear assembly.
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10. Remove the screw from the plastic bail gear.
You may need to hold the bail cam steady inside the side plate at the same time. You can access the cam through the hole underneath the side plate.
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11. Pull the bail gear assembly out from the Printer.
The cam falls to the floor of the Printer.
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Removing the Engaging Lever Support
Removal 1. Remove the primer ' page 8 25.
2. Remove the service station ' page 8 26. 3. Release the cable from the engaging lever support ' page 8 28.
4. Remove the engaging lever.
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5. Remove the spring from the engaging lever support.
6. Remove the three screws that attach the support to the left side plate.
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+
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7. Pull the support upwards and remove it from the Printer.
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Removing the Trailing Cable
Removal 1. Remove the right end cover ' page 8 11.
2. Disconnect the trailing cable from the connector marked P1 on the main
PCA, and from the guides on the right bracket.
C
B
A C D
3. Move the carriage out of the service station.
4. Release the two indicated clips on the top of the cartridge carriage by
pulling them slightly outwards and pull the top of the carriage up.
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5. Disconnect the trailing cable from the connector on the carriage.
6. Release the trailing cable from the clips on the trailing cable guide, and
remove the trailing cable from the Printer.
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Removing the Trailing Cable Guide
Removal 1. Remove the right bracket ' page 8 17.
2. Remove the back cover. 3. Remove the trailing cable ' page 8 34. 4. Slide the trailing cable guide to the right, releasing it from the
left bracket tab.
5. Rotate the trailing cable guide back on its hinge, until it clicks off from
the chassis beam.
6. Remove the trailing cable guide from the Printer.
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Removing the Carriage Assembly
Removal 1. Remove the encoder strip ' page 8 15.
2. Remove the right bracket ' 8 17.
In the following step, take care not to break the black plastic tab on top of the motor.
3. Press the carriage motor towards the left, and remove the belt from the
motor shaft.
If you need greater maneuverability of the motor, press the black plastic tab on the top very slightly downwards.
B
A
Reassembling: Make sure the belt is correctly positioned on the grooves of the shaft.
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4. Rotate the motor on its hinge out towards the back of the Printer.
5. Release the belt from the pulley on the left of the Printer.
Reassembling: Make sure the belt is correctly positioned on the grooves of the pulley.
6. Release the two indicated clips on the top of the cartridge carriage by
pulling them slightly outwards.
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7. Pull the top of the carriage up.
8. Disconnect the trailing cable from the connector on the carriage.
9. Rest the top of the carriage on the trailing cable guide.
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10. Slide the carriage to the right, and remove it with the belt from the Printer.
Reassembling: Position the belt under the back extrusion of the carriage. Make sure that you correctly reconnect the trailing cable ' page 8 8. After reassembling, make sure that you check the carriage to media distance ' page 5 5. Calibration: After having reassembled the Printer, perform the black cartridge alignment. (Details ' User's Guide.)
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Removing the Drive Belt
Removal 1. Remove the Carriage Assembly ' page 8 37.
2. Release the belt from the clips on the underside of the carriage.
Reassembling: Clip the belt to the carriage, using the same part of the belt as was originally used. Also, match the vertical lines on the belt with the vertical grooves on the carriage. The horizontal lines on the belt face outwards.
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Removing the Drive Belt Pulley
Removal 1. Remove the encoder strip ' page 8 15. In the following step, take care not to break the black plastic tab on top of the motor.
2. Press the carriage motor towards the left, and remove the belt from the
motor shaft.
If you need greater maneuverability of the motor, press the black plastic tab on top very slightly downwards.
B
A
Reassembling: Make sure the belt is correctly positioned on the shaft grooves.
3. On the left of the Printer, remove the belt from the pulley.
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Reassembling: Make sure the belt is correctly positioned on the pulley grooves.
4. Underneath the left side of the chassis beam, release the black plastic clip
and push the pulley shaft upwards.
5. Remove the pulley, shaft, and bushing from the Printer.
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Removing the Drive Roller
Removal 1. Remove the Drive roller Gear ' page 8 22.
2. Remove the Media Motor Assembly ' page 8 23. 3. Remove the Overdrive Assembly ' page 8 50. 4. Remove the Engaging lever Support ' page 8 32. 5. Remove the large black plastic gear from the left side plate.
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6. Remove the overdrive assembly ' page 8 50. 7. Use the Pincharm Lever to raise the pinch wheels, and lift the right side
of the drive roller up.
8. Lift the roller out of the Printer.
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Reinstalling the Drive Roller
In the following procedure, take care not to injure your fingers if you let the drive roller snap into place. In the following procedure: Take care not to damage the media separator. Don't let it slip under the drive roller. D Take care that the edge of the media separator does not damage the rubber surface of the drive roller.
D
1. Position the Drive Roller on top of the pinch wheels.
2. Make sure that the gear on the left side of the roller is positioned
immediately to the left of the side plate.
3. Use the Pincharm Lever to lift the pinch wheels, and let the roller drop
into place.
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4. Ensure that the bearing assembly at the right end of the drive roller is seated
in the right sideplate and completely on the right side of the axial bias plate.
5. Replace the Overdrive Assembly ' page 8 50. 6. Replace the Media Motor Assembly ' page 8 23.
Press down on the media mount as you replace the three screws. This is to ensure correct spacing between the drive roller and the cartridge nozzles. Calibration: Perform the accuracy calibration after reassembling the Printer. (Details ' chapter 5.)
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Removing the Pinch Arm Lift Mechanism
Refer to figure 10 ' page 49. Removal 1. Remove the drive roller ' page 8 44.
2. Little by little, unscrew the cam journal screw (item 1) on the right side,
at the same time continually pushing the screw in towards the center of the Printer, until you feel that you have pushed the cam journal nut out of the journal.
3. Pull the right cam journal (item 2) out of the bar cam (item 3). 4. Grasp the left cam journal (item 4) on the left side of the Printer. 5. Reach around to the front of the Printer and push the top of the bar cam
slightly towards the rear of the Printer, simultaneously pulling the left cam journal to the left, so that the bar cam can begin to slide out of the left sideplate.
6. Slide the bar cam (item 3) to the left until it clears the pinch arm
assembly (item 5) you want to replace. Take care that the spring does not fall.
7. Remove the pinch arm assembly and spring from the chassis.
Bushing Spring Pinch arm
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Installation 1. Reinsert the pinch arm assemblies into the chassis. Make sure that the bushings are correctly inserted in the holes.
2. Slide the bar cam (item 3) to the right. You must position it between the
left and right side plates, or the lift mechanism will not work.
In the following step, do not overtighten the cam journal screw. Doing so could break the journal, cause the bar cam to enter the side plate hole, and thus restrict the action of the pinch arm lever.
3. Before repositioning the right cam journal (item 2), tighten its nut just to
the point where the nut is inside the journal. Reinstall the journal and slightly tighten the screw (item 1).
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4
5
3
1
2
Figure 10: Pinch arm Lift Mechanism
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Removing the Overdrive Assembly (including the Overdrive Roller, Media Separator, Media Deflectors and Media Sensor)
Refer to figure 11 ' page 51. Removal 1. Remove the Spittoon ' page 8 20.
2. Remove the Primer Assembly ' page 8 25. 3. Remove the Service Station ' page 8 26. 4. Disconnect the media sensor cable from the main PCA (connector labeled
MEDIA).
5. Remove the clutch retaining ring (item 1) that secures the overdrive
clutch (item 2) to the overdrive roller (item 3). overdrive roller (item 3).
6. Slide the overdrive clutch (item 2) to the left and remove it from the 7. Remove two screws (item 4) from the right side of the printer and one
screw (item 5) from the left side.
8. Loosen one screw (item 6) on the left side, but do not remove it. 9. Lift the complete Overdrive Assembly (item 7) (which includes the
overdrive roller, media separator, media deflectors and media sensor) from the printer.
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3
2 1 4
4
7
6
5 Figure 11: Overdrive Assembly
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Removing the Entry Platen
Refer to figure 12 ' page 54 Removal 1. Remove the Overdrive Assembly ' page 8 50.
2. Remove the screw (item 1) that attaches the entry platen (item 2) to the
right side plate. left side plate.
3. Remove the screw (item 3) that attaches the entry platen (item 2) to the 4. Release the indicated entry platen clips by pushing the bottom front
corners of the entry platen up.
5. Pull the entry platen horizontally out from the Printer.
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Installation 1. Position the entry platen between the two side plates.
2. Slide the top of the entry platen in, and correctly position it on the inside
of each side plate.
On each side plate, the upper two pins should touch the entry platen above it and the lower pins should touch the entry platen below it.
Upper Pins
Lower Pin Entry Platen
3. Refasten the indicated entry platen clips.
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4. Inserting a screwdriver under the side plate on the right of the entry
platen, lever the entry platen over to the left, so that it is flush against the left side plate. There must be no space between the entry platen and the right side plate. It doesn't matter if there is a small space between the entry platen and the left side plate.
5. Replace the screw (item 1) on the right hand side and the screw (item 3)
on the left hand side.
1. Tighten the screws, making sure that the entry platen is aligned tight
against the right side plate.
1
2
3 Figure 12: Entry Platen
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