HP 9xx_disassembly.pdf

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deskjet 9xx service manual

DeskJet 9xx Disassembly Procedures

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TABLE OF CONTENTS

C ASE P ARTS ................................................................................................1

B USINESS T RAY F RAME A SSEMBLY ......................................................................4

I NPUT T RAY .................................................................................................5

P APER M OTOR .............................................................................................7

C ABLE H ARNESS ..........................................................................................9

W ING F RAMES AND P APER P USHER ..................................................................10

P OWER S UPPLY ..........................................................................................11

M AIN PCA ..............................................................................................13

B EAD F ERRITE .............................................................................................14

P ICK F EEDROLLER A SSEMBLY ............................................................................15

S POT S ENSOR A SSEMBLY ( NOT APPLICABLE FOR 94 X & 92 X ) ....................................16

E NCODER S TRIP / C ARRIAGE R OD ...................................................................17

C ARRIAGE A SSEMBLY ...................................................................................18

C ARRIAGE M OTOR A SSEMBLY / T URNAROUND A SSEMBLY .......................................20

I NNER P APER G UIDE / U PPER P APER G UIDE .........................................................21

F EEDROLLER A SSEMBLY ..................................................................................23

P APER D RIVE ..............................................................................................24

L OWER P APER G UIDE ...................................................................................25

C HASSIS A SSEMBLY .....................................................................................26

H UMIDITY I NTERCONNECT PCA......................................................................27

S ERVICE S TATION .......................................................................................28

DeskJet 9xx Disassembly Procedures

Case Parts

1.

2.

3.

Remove the Rear Cleanout.

Lift Access Door Assembly into a vertical position and pull upwards to remove it.

Release inner tab and remove Nameplate from Top Case.

(For 995 series: Release Bluetooth Module from Top Case by pushing on inner tab.

At the far end of the Bluetooth cable, pinch connector to release, then remove

module and cable)

Release inner tab and pull out Keypad from Top Case.

Detach the cable from Keypad.

4.

5.

5

2

3

4

1

1

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DeskJet 9xx Disassembly Procedures

1.

2.

3.

4.

5.

Remove two Side case Screws from Top Case on the top of the unit.

Press two front latches forward to free them.

Deflect two back latches on Chassis.

Lift off the Top Case.

Remove the Cover-Connector.

1

2

4

3

5

3

2

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DeskJet 9xx Disassembly Procedures

1.

2.

3.

4.

Use a screwdriver to pry the latch to release the IR Port.

Release the IR port and slide the port from the Lower Right Case.

Disconnect the IR PCA from the Cable Harness.

Slide the unit over edge of table so that the Lower Right Case is suspended.

Release the front latch by deflecting it away from the Chassis with a screwdriver

inserted through the bottom slot, then rotate the front of the case away from the unit.

Release back latch by deflecting it away from Chassis with a screwdriver.

Rotate the Lower Right Case away from the Chassis.

5.

Repeat steps 4 and 5 for Lower Left Case.

5

1

3

2

4

4

3

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