Microtek SCANMAKER 5700 Glass Cleaning Instructions

Scanner Glass Cleaning Instructions Chassis Type I 9/17/2004

Glass Cleaning Instructions For:

SCANMAKER 3700

SCANMAKER 3750i

SCANMAKER 4600

SCANMAKER 4700

SCANMAKER 5600

SCANMAKER 5700

1 of 8 Last Updated On: 9/16/04

Scanner Glass Cleaning Instructions Chassis Type I 9/17/2004

A scanner is a precision optical instrument and
disassembling the scanner upper housing is a delicate
procedure. We do not recommend that you disassemble the
scanner’s upper housing assembly on your own because of
potential problems that may come up while trying to
disassemble & during the reassembly process. Technical
Support personnel are not trained in repair; therefore, if
you get in trouble, assistance for disassembly & during the
reassembly process is not available. Proceed at your own
risk!

Tools Needed:

 Phillips Screw Driver
 Flat Screw Driver or small pry bar
 Needle Nose Pliers

Recommended Materials:

 Glass Cleaning Cloth
 Canned Air

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Scanner Glass Cleaning Instructions Chassis Type I 9/17/2004

Selecting A Work Area

It is important that you begin by planning where you will lay your disassembled parts.

 Locate an area with a workbench, table or desk with plenty of space.
 Make sure that the area is clear of any other parts from other devices, as the many

screws and nuts can be easily confused.

 We recommend that you lay a sheet or tablecloth on the surface you will be

working on. This will prevent tools, parts and screws from sliding around and
falling to the floor. This will also prevent any parts from scratching the surface of
the work area.

Before You Start

 In order to prevent any short-circuiting of the electronic chips on the scanners

motherboard, it is very important that you ground yourself by simply touching the
metal part or parts of your PC.

 Make sure that the area you touch on your PC is bare metal and not coated with

paint or plastic. This will allow for any static electricity to discharge from your
body.

Note: Make sure that the scanner power cable is disconnected from the back of
the scanner at this point.

Cleaning the Scanner’s Glass Bed

The best way to clean the scanner glass bed is with a clear glass cleaner solution. Make
sure you do not use the blue, red, yellow or any other color dye solutions. Using color
dye solutions can form streaks on the scanners glass bed. Use the clear solutions for best
results. You can also use a 50/50 solution mix distilled water and pure alcohol. Also use
a soft cloth and avoid all abrasive material such as sponges and rough paper towels.

Cleaning Under Side of Glass Bed

To clean the underside of your scanners glass bed, please make sure that it is absolutely
necessary to do this. If cleaning the top of the scanner glass bed was not sufficient you
will need to open your scanners upper housing in order to be able to clean the underside
of the scanners glass bed.

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Scanner Glass Cleaning Instructions Chassis Type I 9/17/2004

Removing the Scanner Lid

Removing the scanner lid is probably the easiest part of these instructions. Simply open
the scanner lid to a 90-degree angle and lift upward to remove the lid. (See illustration

below.)

Removing the Scanner Upper Outer Housing

 Most of our scanner models have two phillips head screws holding down the

upper housing.

You will notice the phillips screws inside of the receptacles where the scanner lid posts
(hinges) are inserted. (See illustration below.)

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Scanner Glass Cleaning Instructions Chassis Type I 9/17/2004

1. Remove the Phillips head screws inside of the receptacles where the scanners lid posts
(hinges) were inserted.

Note: Do not use screwdrivers with magnetic or magnetized tips.
Using magnetized tools around the scanners circuit boards may
damage the circuitry, therefore rendering your scanner useless.

2. You will need to pry open the scanners upper housing. In order to do this without
damaging the scanner we will need a flat head screw driver or a very small pry bar.
Position the front of the scanner facing away from you on the workbench. (See

illustration below.)

Back of the
Scanner

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Scanner Glass Cleaning Instructions Chassis Type I 9/17/2004

3. Take your flat head screw driver or small pry bar and locate the area immediately
below the lid hi nge receptacl es. Take your flat head screwdriver and insert it bet ween th e
upper and lower housing. (See illustration below.)

Warning: Make sure to select an area where the scanner’s motherboard is not in
the way when you insert the screwdriver or pry bar. If you insert your prying tool
into the motherboard of the scanner you may damage the circuitry, rendering the
scanner useless.

4. Once the flat head screwdriver has been inserted between the upper and lower
housing, rotate the screwdriver or pry bar clockwise and counter clock wise in order to
pry open or separate the upper scanner housing from the lower scanner housing.

Note: A good indication that this has happened is that you will here a clicking or
snapping sound as the interior plastic clips are released by the force being used
to pry the scanners upper housing with the screwdriver or pry bar.

5. Once the scanner’s upper housing has been released lift the scanner’s upper housing (at
the rear of the scanner) upward about 1 to 2 inches. (See illustration below.)

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Scanner Glass Cleaning Instructions Chassis Type I 9/17/2004

This will allow the scanner’s upper housing to clear the two plastic posts at the rear of the
scanner. Then simply pull the upper housing forward or towards you about an inch. Then
lift the upper housing upward to remove. See illustration below:

Plastic Post

Assembling the Upper Housing

1. Before putting the upper housing assembly together, it may be a good time for you to
clean the interior side of the scanners glass bed. Clear glass cleaners and a soft cotton
cloth are the recommended materials to clean the scanners glass bed. Using a clear
solution will prevent streaks from forming on your scanners glass bed.

2. Now take the upper housing and align with the bottom part of the scanner housing.
Then lift the rear of the scanner’s upper housing about one inch and slide forward until
the front of the upper housing drops about half an inch. Then, pull the upper housing

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Scanner Glass Cleaning Instructions Chassis Type I 9/17/2004

backward until it comes flush with the scanner’s lower housing. Once the upper and
lower housing are aligned press firmly downward to allow the plastic clips to fasten and
connect the upper and lower scanner housing. (See illustration below.)

3. To fasten the scanner’s upper and lower housing replace the two Phillips screws that
were removed from the lids receptacles at the back of the scanner. Then position the
scanner lid to a 90 angle over the l id receptacles at the rear of the scanner and insert the
lid back in place. (See illustration below.)

Note: Prior to reconnecting the scanner to you computer, make sure to inspect the
interior of the scanner through the scanners glass bed and check for any loose or
pinched wires.

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