Difficulty
Moderate
Steps
16
Time Required
40 minutes
Sections
3
- Outer Case
- 4 steps
- Belt
- 6 steps
- Sensor Bar
- 6 steps
Flags
1
Incorrect Tools
Help make this guide better by using the correct tools in images and/or text.
BackVisioneer OneTouch 7400 USB
Full Screen
Options
History
Save to Favorites
Download PDF
Edit
Translate
Get Shareable Link
Embed This Guide
Notify Me of Changes
Stop Notifications
Introduction
What you need
Step 1
Outer Case
- On the bottom of the scanner, remove the screw at the top left side.
On the bottom of the scanner, remove the screw at the top left side.
1024
Step 2
- Remove the rubber foot pad opposite the screw hole to expose a second screw hole.
- Remove the screw beneath the foot-pad.
Remove the rubber foot pad opposite the screw hole to expose a second screw hole.
Remove the screw beneath the foot-pad.
Step 3
- Rotate the scanner so the screw hole is located on the top left hand side.
- Place the plastic opening tool between the top casement and bottom casement of scanner with the hook facing up.
- Gently pry the two casements apart beginning above the screw hole and working your way around.
- Note that the top and bottom casings are held together by a series of 6 tabs. There is one tab on each of the long sides of the scanner approximately 6 inches in from the corners. There are two tabs on each of the short sides of the scanner approximately 2.3 inches in from the corners. Use the spudger to unhook the tab from the top casement.
Rotate the scanner so the screw hole is located on the top left hand side.
Place the plastic opening tool between the top casement and bottom casement of scanner with the hook facing up.
Gently pry the two casements apart beginning above the screw hole and working your way around.
Note that the top and bottom casings are held together by a series of 6 tabs. There is one tab on each of the long sides of the scanner approximately 6 inches in from the corners. There are two tabs on each of the short sides of the scanner approximately 2.3 inches in from the corners. Use the spudger to unhook the tab from the top casement.
Step 4
- Separate the two casement pieces.
Separate the two casement pieces.
Step 5
Belt
- Remove the screw holding the tension spring in place.
Remove the screw holding the tension spring in place.
Step 6
- Use the plastic opening tool to lift up the tension spring.
- Be careful. The spring will fly.
Use the plastic opening tool to lift up the tension spring.
Be careful. The spring will fly.
Step 7
- Remove the belt from the spool.
- The spool is a loose piece; don’t lose it.
Remove the belt from the spool.
The spool is a loose piece; don’t lose it.
Step 8
- Loosen the belt enough to turn over the sensor bar.
Loosen the belt enough to turn over the sensor bar.
Step 9
- With the sensor bar turned upside down, remove the screw in the middle of the bar.
- Lift off the metal plate if it does not come away with the screw.
With the sensor bar turned upside down, remove the screw in the middle of the bar.
Lift off the metal plate if it does not come away with the screw.
Step 10
- Carefully lift the belt out of the groove in the sensor bar to remove.
Carefully lift the belt out of the groove in the sensor bar to remove.
Step 11
Sensor Bar
- With the sensor bar upside down, lift the metal tab near the center.
- Slide the metal casing on top of the sensor bar to the left to disengage it from the plastic.
With the sensor bar upside down, lift the metal tab near the center.
Slide the metal casing on top of the sensor bar to the left to disengage it from the plastic.
Step 12
- Use the spudger to pry loose the ribbon tab on the inside surface of the casement.
Use the spudger to pry loose the ribbon tab on the inside surface of the casement.
Step 13
- Detach the ribbon from the other end and pull the plastic tab from the ribbon.
Detach the ribbon from the other end and pull the plastic tab from the ribbon.
Step 14
- Carefully peel the ribbon off of the casing. The ribbon is held with two-sided tape. Use the spudger to help as needed.
- The ribbon goes under the metal bar. Gently pull the ribbon under the metal bar to remove it.
Carefully peel the ribbon off of the casing. The ribbon is held with two-sided tape. Use the spudger to help as needed.
The ribbon goes under the metal bar. Gently pull the ribbon under the metal bar to remove it.
Step 15
- Lift the sensor bar from the scanner bed.
- To finish removing the ribbon from the sensor bar, use the spudger to pry away the clear plastic piece securing the ribbon to the bar. Detach the ribbon from the sensor bar by peeling it away from the double-sided tape.
Lift the sensor bar from the scanner bed.
To finish removing the ribbon from the sensor bar, use the spudger to pry away the clear plastic piece securing the ribbon to the bar. Detach the ribbon from the sensor bar by peeling it away from the double-sided tape.
Step 16
- Slowly pull the ribbon end straight out to remove it from the sensor bar.
Slowly pull the ribbon end straight out to remove it from the sensor bar.
To reassemble your device, follow these instructions in reverse order.
Cancel: I did not complete this guide.
Author
with 4 other contributors
Jena
Member since: 10/18/2013
608 Reputation
6 Guides authored
Badges:
9
+6 more badges
Team
University of Maine, Team 1-13, Diaz Fall 2013
Member of University of Maine, Team 1-13, Diaz Fall 2013
UMAINE-DIAZ-F13S1G13
3 Members
8 Guides authored
