hp deskjet 65xx_disassembly
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DJ 652x / 654x Disassembly Procedures
Deskjet 652x , 654x
Exploded Views
DJ 652x
DJ 654x
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Table of Contents
DJ 652x Case Part Disassembly Procedures .......................................................3Required Tools ..................................................................................................3DJ 652x Case Parts ..........................................................................................3
Rear Cleanout Assembly and Rear Cover.....................................................3Top Case, Access Door, and Keypad Assembly ...........................................4Lower Case Parts and End Caps...................................................................7
DJ 654x Case Part Disassembly Procedures .....................................................11Required Tools ................................................................................................11DJ 654x Case Parts ........................................................................................12
Rear Cleanout Assembly and Rear Cover...................................................12Access Door ................................................................................................13Top Case and Keypad Assembly.................................................................14Removing the In Tray. .................................................................................16
DJ 652x and DJ 654x Printer Mechanism Disassembly ..................................19
Absorber Tray and Absorbers......................................................................19Main Logic PCA and Front USB Pigtail........................................................20Side Bracket, Carriage Assembly, Carriage Rod, and Carriage Motor ........21Gear Guard and Pick Assembly...................................................................25Backbone and Anti-Rotation Assembly........................................................26Upper Paper Guide, Upper Paper Guide Hanger, and IPA Sensor .............28Platen Assembly ..........................................................................................30Paper Encoder Guard..................................................................................31Feed Roller Assembly..................................................................................32Output Roller Assembly ...............................................................................33Paper Motor Bracket Assembly ...................................................................34Lower Paper Guide Assembly .....................................................................35
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DJ 652x Case Part Disassembly Procedures
Required Tools
Small Screwdriver
Long Screwdriver
Needle Nose Pliers
Torx T-10 Driver (Magnetized Recommended)
DJ 652x Case Parts
Rear Cleanout Assembly and Rear Cover
1. Press the Rear Cleanout Assembly latches inward and pull the Rear
Cleanout Assembly from the printer.2. Remove the two Rear Cover screws.3. While lifting the Top Cover, pry out the left and right End Caps and lift the
Rear Cover from the printer.
Note: The Rear Cleanout and Rear Cover are the only case parts to remove inorder to gain access to the Main Logic PCA.
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Top Case, Access Door, and Keypad Assembly
1. Open the Access Door and lower the In Tray.2. Remove the front right screw, located in front of the Service Station.3. Remove the Keypad Assembly by prying the latch fingers, inside the Top
Cover, sliding the Keypad Assembly to the right, then pulling on theKeypad Assembly.
4. Disconnect the Keypad Assembly from the printer.
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5. Remove the front left screw, located behind the Keypad Assemblylocation.
6. Release the Left End Cap from the Top Cover Assembly by prying at latchpoint A .
7. Release the left side of the Top Cover Assembly by releasing the latch
from below the Chassis at latch point B.8. Release the Right End Cap from the Top Cover Assembly by prying atlatch point C.
9. Release the right side of the top Cover Assembly by releasing the latchfrom latch point D.
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10. With the Top Cover Assembly removed from the printer and the AccessDoor closed to the Top Cover Assembly, pry at the gear hinges andrelease the Access Door Assembly from the Top Cover Assembly.
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Lower Case Parts and End Caps
1. Release the Lower Right Case latch by prying up between the chassis andthe Lower Right Case.
2. Rotate the Lower Right Case from the chassis.
3. Release the Lower Left Case latch by prying up between the chassis andthe Lower Left Case
4. Rotate the Lower Left Case from the Chassis.
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5. Remove the friction gears from the End Caps.6. Release the End Caps from the Lower Case Parts by releasing at the two
latch points.
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Removing the In Tray.1. Remove any media in the In Tray. With the Top Cover, Lower Case Parts,
and End Caps removed, remove the two screws holding the StarwheelRoller Assembly on the printer.
2. Lift the Starwheel Roller Assembly from the printer.
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3. Remove the In Tray screw by reaching through an access hole between
the Output Roller Assembly and the Platen Assembly. Note: a magnetizedTorx T-10 screwdriver is highly recommended.
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4. Place the printer on it back and release the In Tray Assembly latch.5. Pull the In Tray Assembly from the printer.
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DJ 654x Case Part Disassembly Procedures
Required Tools
Small Screwdriver
Long Screwdriver
Needle Nose Pliers
Torx T-10 Driver (Magnetized Recommended)
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DJ 654x Case Parts
Rear Cleanout Assembly and Rear Cover
1. Press the Rear Cleanout Assembly latches inward and pull the Rear
Cleanout Assembly from the printer.2. Remove the two Rear Cover screws.3. Lift the Rear Cover from the printer.
Note: The Rear Cleanout and Rear Cover are the only case parts to remove inorder to gain access to the Main Logic PCA.
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Access Door
1. Pull on the bottom of the right and left End Cap Trim and lift them from theprinter.
2. Pull the right and left End Caps from the printer.
3. Open the Access Door.4. Pull out on the Access Door right gear hinge, freeing the right side of the
Access Door from the printer. Remove the Access Door from the printer.
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Top Case and Keypad Assembly
4. With the two rear screws and Rear Cover removed, release the right frontlatch of the top cover by reaching down in front of the color pen latch witha long screwdriver. Lift the right side of the Top Cover to release the cover
from the latch.5. Release the left front latch of the top cover by reaching down below the
inside of the Keypad Assembly area and lifting on the left side of the TopCover.
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1. Push on the tab, located on the inside of the Top Cover and Keypad
Assembly.2. Pry out the Keypad Assembly from the Top Cover Assembly.3. Disconnect the Keypad Assembly Cable.
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Removing the In Tray.1. Remove the Output Tray Assembly from the printer.2. Remove any media in the In Tray.
1. With the Top Cover removed, remove the two screws holding the
Starwheel Roller Assembly on the printer.2. Lift the Starwheel Roller Assembly from the printer.3. Remove the In Tray screw by reaching through an access hole between
the Output Roller Assembly and the Platen Assembly.
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4. Place the printer on it back and release the In Tray Assembly latch.5. Pull the In Tray Assembly from the printer.
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Lower Case Parts1. Release the Lower Right Case latch by prying up between the chassis and
the Lower Right Case.2. Rotate the Lower Right Case from the chassis.3. Release the Lower Left Case latch by prying up between the chassis and
the Lower Left Case4. Rotate the Lower Left Case from the Chassis.
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DJ 652x and DJ 654x Printer Mechanism Disassembly
Absorber Tray and Absorbers
1. Release the two latches on the Absorber Tray, located below the Platen
Assembly, and lower the Absorber Tray from the mechanism.2. Remove the two Absorbers from the Absorber Tray.
Caution: The Absorbers may be saturated with ink.
Note: The Absorber Tray and Absorbers can be removed from the printer withoutdisassembling the printer.
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Main Logic PCA and Front USB Pigtail
1. Remove the Rear Cover.2. Remove the two Main Logic PCA screws.3. Disconnect the Cable Harness Assembly, Carriage Flex Cables, Front
USB cable, and the Service Station Motor cable from the Main Logic PCA.4. Remove the Main Logic PCA from the printer.5. Remove the two front USB screws.6. Remove the front USB connector from the Chassis.
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Side Bracket, Carriage Assembly, Carriage Rod, and Carriage Motor
1. With the case parts removed, remove the four Side Bracket screws.2. Rotate the Side Bracket from the printer Chassis.
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3. If the Carriage Assembly is locked onto the Service Station Assembly,remove the cap on the Chassis below the Service Station. With yourfinger, release the Carriage Assembly from the Service Station Assembly.
4. Slide the Carriage Assembly toward the middle of the mechanism.5. Push in on the Encoder Spring and disconnect the Encoder Strip.6. Disconnect the Encoder Strip at its right end. Gently draw the Encoder
Strip to the left to remove the Encoder Strip from the Carriage Assembly.During this process, the Encoder Strip probably will be contaminated by
grease from the Carriage Rod. Discard the Encoder Strip.7. Remove the Rod Spring from the right end of the Carriage Rod.
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8. Disconnect the Anti-Static Brush from the Encoder Spring9. Remove the Belt Tensioner Spring from the Belt Tensioner.10. Remove the Carriage Belt from the Belt Tensioner pulley and the Carriage
Motor pulley.
11. Remove the Trailing Cable Clamp screw.12. Slide the Trailing Cable Clamp to the right and remove the Trailing CableClamp from the mechanism.
13. Release the Flex Cables from the Mechanism.14. Remove the three screws holding the Carriage Rod to the mechanism.15. Lift the Carriage Assembly and Carriage Rod from the mechanism as one
assembly.
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16. Slide the Carriage Rod from the Carriage Assembly.
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17. Disconnect the Carriage Motor from the Cable Harness.18. Remove the two Carriage Motor screws.
19. Remove the Carriage Motor from the mechanism.
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Service Station1. With the Carriage Assembly removed, lift the right side of the Service
Station Assembly to release the Service Station Assembly from theChassis.
2. Lift the Service Station Assembly from the Chassis.
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Gear Guard and Pick Assembly
1. Use a Torx or blunt screwdriver to loosen the lower snap from the front ofthe printer. It is difficult to see during this maneuver, and the operator willneed to fit the screwdriver past the Lifter Spring and the Carriage and
Paper path motors.2. With the bottom snap loose, release the top snap on the Gear Guard.3. From the rear of the printer, find the two polar bearings attaching the Pick
Assembly to the Chassis. Release them and rotate them toward the rearof the printer.
4. Gently lift the Pick Assembly out of the printer.
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Backbone and Anti-Rotation Assembly
1. Rotate and Remove the two Carriage Rod clips.2. Disconnect the Wiring Harness from the Encoder PCA.3. Remove the two screws holding the Backbone Assembly to the Chassis.
4. Lift and bring forward to remove the Backbone Assembly from the printer.5. Remove the two screws securing the Anti-Rotation Assembly to the
Chassis.6. Lift the Anit-Rotation Assembly from the Chassis.
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Wiring Harness1. Remove the screw holding the Duplexer Interconnect PCA to the Chassis.2. Remove the thru-hole cable ties by compressing with needle-nosed pliers.3. Disconnect the Wiring Harness from the Paper path Motor.4. Disconnect the Wiring Harness from the Paper path encoder PCA.
5. Remove the Wiring Harness from the Chassis.
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Upper Paper Guide, Upper Paper Guide Hanger, and IPA Sensor
Caution: The Upper Paper Guide Assembly is fragile and easily damaged.1. From the rear, push the Upper Paper Guide Springs forward to release the
Upper Paper Guide from the Upper Paper Guide Hanger.
2. Move the Upper Paper Guide Spring back off the Upper Paper Guide andremove it from the printer.
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3. Remove the two screws securing the Upper Paper Guide Hanger to the
Chassis.4. Pry and lift the Upper Paper Guide Hanger from the Chassis.5. Lift and remove the IPA sensor from the Chassis.
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Platen Assembly
1. Release the two Platen Assembly latches.2. Disconnect the Platen Assembly from the Feedroller Assembly.3. Lift the Platen Assembly from the Chassis.
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Paper Encoder Guard
1. Pry the finger on the Guard.2. And remove it from the Chassis.
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Feed Roller Assembly
3. Using needle nose pliers, remove the Caber Pin.4. Remove the Shifter Spring.5. Release and rotate the Paper Motor Bracket Bearing.
6. Release and rotate the two other Polar Bearings.7. Lift and remove the Feed Roller Assembly from the Chassis.
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Output Roller Assembly
1. Rotate the right tab until it is pointing down.2. Pull the right tab off of the Output Roller Assembly by pulling to the right.3. Rotate the left tab until it is pointing down.
4. Push the left tab to the right to disengage it from the chassis.5. Lift the Output Roller Assembly from the Chassis.
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Paper Motor Bracket Assembly
1. Remove the screw, near the front of the assembly.2. Lift and remove the Paper Motor Bracket Assembly.
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Lower Paper Guide Assembly
1. From the rear of the printer, use a flat-bladed screwdriver to release thetwo tabs anchoring the lower Paper Guide.
2. Rotate the Lower Paper Guide Assembly toward the front of the printer to
release its forward tabs.3. Lift and remove the Lower Paper Guide Assembly.4. Lift and remove the Kicker.
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