Difficulty
Moderate
Steps
10
Time Required
30 minutes
Sections
1
- Outer Shell Disassembly
- 10 steps
Flags
Slice and Dice
The steps in this guide should be split up and made into a series of prerequisite guides.
BackHP Photosmart C4780
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Introduction
What you need
Step 1
Outer Shell Disassembly
- Unplug the device from any energy sources.
- Lift the top cover of the scanner.
- Use a plastic opening tool to remove the plastic frame surrounding the glass.
Unplug the device from any energy sources.
Lift the top cover of the scanner.
Use a plastic opening tool to remove the plastic frame surrounding the glass.
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Step 2
- Carefully pull the frame away from the glass.
- If it doesn’t remove easily, use the iFixit Opening Tool again to pry stuck sections.
Carefully pull the frame away from the glass.
If it doesn’t remove easily, use the iFixit Opening Tool again to pry stuck sections.
Step 3
- Use a T10 screwdriver to unscrew the two screws that fasten the frame to the printer hood.
Use a T10 screwdriver to unscrew the two screws that fasten the frame to the printer hood.
Step 4
- Put your finger behind the panel with the power button.
- Then, pull the piece outwards.
Put your finger behind the panel with the power button.
Then, pull the piece outwards.
Step 5
- Unscrew the screw inside the power button panel space.
- Then, unscrew the screw that is across the printer slider.
Unscrew the screw inside the power button panel space.
Then, unscrew the screw that is across the printer slider.
Step 6
- Pull the white circuit board outwards which is located under the small screen.
- Unplug the small ribbon cable from the circuit board.
- Be careful when you unplug the ribbon cable not to use too much force. Using too much force may damage or rip the cable.
Pull the white circuit board outwards which is located under the small screen.
Unplug the small ribbon cable from the circuit board.
Be careful when you unplug the ribbon cable not to use too much force. Using too much force may damage or rip the cable.
Step 7
- Unplug the small ribbon cable from the circuit board. Be careful when you unplug the ribbon cable not to use too much force. Using too much force may damage or rip the cable.
Unplug the small ribbon cable from the circuit board. Be careful when you unplug the ribbon cable not to use too much force. Using too much force may damage or rip the cable.
Step 8
- Pull the memory card reader’s circuit board out.
- Detach the white wiring connector from the back of the circuit board.
- You may need to use a finger nail or a plastic opening tool to detach the white wiring connector from the circuit board.
Pull the memory card reader’s circuit board out.
Detach the white wiring connector from the back of the circuit board.
You may need to use a finger nail or a plastic opening tool to detach the white wiring connector from the circuit board.
Step 9
- Put your finger behind the small screen.
- Then, pull it up.
- Do not hesitate to use force to remove the TouchSmart panel.
- Disconnect the ribbon cable from the small screen.
Put your finger behind the small screen.
Then, pull it up.
Do not hesitate to use force to remove the TouchSmart panel.
Disconnect the ribbon cable from the small screen.
Step 10
- Pull the printer hood upward.
Pull the printer hood upward.
To reassemble, simply follow the steps in reverse order.
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Author
with 13 other contributors
Renee Lamb
Member since: 09/26/2012
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Team
Cal Poly, Team 2-11, Propen Fall 2012
Member of Cal Poly, Team 2-11, Propen Fall 2012
CPSU-PROPEN-F12S2G11
4 Members
6 Guides authored
Ken - Feb 16, 2015
Reply
Excellent helpful easy to follow instructions. Thanks.
In step 7, removal of the Touch Pad, I was not able to locate the release clip. Feeling around, what I thought was the latch was a ribbon cable that I distorted but didn’t destroy. The top came off without the Touch Pad removal. Once the top was off, I located a latch on the back right of the Touch Pad, but once released, it didn’t help to free up the Touch Pad. I couldn’t get the Touch Pad off.