Microtek SCANMAKER 4700 Glass Cleaning Instructions

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

Glass Cleaning Instructions For:

SCANMAKER 3800

SCANMAKER 4800

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

Last Updated By: Alex Licea 1 of 9 Last Updated On: 8/17/04

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

Materials Recommended

Glass Cleaning Cloth
*Canned Air

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.
See the illustration below for an example of a preferred 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.

Last Updated By: Alex Licea 2 of 9 Last Updated On: 8/17/04

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

N

Removing the Scanners Lid

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

Removing the Scanners Upper Outer Housing

Most of our scanner models have two Phillips head screws holding down the upper
housing. You can locate the phillips screws by removing the scanners lid off the scanner.
You will notice the phillips screws inside of the receptacles where the scanners lid posts
(hinges) are inserted. (See illustration below.)

otice the Phillip head
screws located inside the
scanner lid receptacles.

Last Updated By: Alex Licea 3 of 9 Last Updated On: 8/17/04