HP Hewlett Packard Photo Scanner 4570 C User Manual

Glass cleaning hp scanjet 4570c/5500c scanner  
 
preparation  
Tools needed:  
phillips screwdriver  
Supplies needed:  
Glass cleaner  
lint-free cloths  
1
2
Disconnect the USB cable between the scanner and computer.  
Disconnect the power supply from the scanner.  
Wait at least 15 minutes (after disconnecting power) before dissembling the scanner and  
cleaning the glass. This gives the scanner time to cool.  
 
disassembly  
remove the scanner lid  
After steps 1 and 2 have been completed  
and the scanner has cooled for 15 minutes,  
you can remove the lid as shown.  
3
Open the lid and lift it straight up.  
Scanner lid being removed  
4
Set the lid aside.  
Clean top of the scanner  
Clean the outside of the scanner prior to disassembly to prevent contamination of internal  
parts.  
Use only glass cleaner. Avoid abrasives, acetone, benzene, and carbon tetrachloride, all of  
which can damage the scanner glass. Avoid isopropyl alcohol because it can leave streaks on the glass.  
Do not spray the glass cleaner directly on the glass. Do not allow the cleaner to seep between  
the glass and the plastic. If liquid gets between the glass and the plastic it could stain the calibration strip (  
the white strip under the glass) and render your scanner useless. If the cleaner gets in the calibration strip  
area, the scanner must be sent to hp for repair.  
5 Apply glass cleaner to a soft lint-free cloth. Clean the plastic first.  
6 Apply the glass cleaner sparingly to a separate cloth and clean the glass.  
 
un-fasten the top cover  
Begin disassembly only after completing steps 1 through 6  
You are about to expose the interior of the scanner to the dust of the outside environment. the  
scanner is very sensitive to dust; any dust particles that get into the carriage head can cause streaks in the  
scanned image. Minimize the time that the top cover is off by having all the cleaning materials ready. Also  
be sure to disassemble your scanner in a clean environment.  
7
Using a Phillips screwdriver remove the four screws from the bottom of the scanner.  
See the following illustration for the location of the screws.  
location of the screws  
8 Holding the top and bottom cover together,  
turn the unit back over so that the glass side is  
facing up.  
 
remove the top cover  
After unscrewing the top cover, you are ready to remove it.  
top cover being removed  
9 Carefully lift the top cover off the base. Lift the back of the top cover first then pull it  
out of the front bezel (bezel is referred to end containing the buttons and back is opposite  
of buttons). Turn the top cover upside down and set it on a clean surface  
Dust will immediately begin accumulating in your scanner now that the top cover is off.  
Minimize the time the scanner base is exposed. Read all directions and have the necessary tools ready  
before removing the top cover. While the top cover is off do not leave the scanner unattended.  
Static discharge from your fingers, hand, or tools will damage the circuit  
boards inside your scanner. Do not touch anything inside the scanner base.  
 
Cleaning  
clean the glass  
You are now ready to clean the underside of the glass.  
Use only glass cleaner. Avoid abrasives, acetone, benzene, and carbon tetrachloride, all of  
which can damage the scanner glass. Avoid isopropyl alcohol because it can leave streaks on the glass.  
Do not spray the glass cleaner directly on the glass. Do not allow the cleaner to seep between  
the glass and the plastic. If liquid gets between the glass and the plastic it could stain the calibration strip (  
the white strip under the glass) and render your scanner useless. If the cleaner gets in the calibration strip  
area, the scanner must be sent to hp for repair.  
10 Apply glass cleaner sparingly to a soft, lint-free cloth and clean the glass.  
reassembly  
re-mount the top cover to the scanner  
When you have finished cleaning the underside of the glass, reassemble the top cover.  
11 Hold the top cover directly above the scanner and slide the front of the top cover  
into bezel first and then lower the back into place.  
top cover being installed onto base  
 
12 Holding the top and bottom covers  
together, turn the scanner upside down on a  
clean surface.  
insert the screws  
13 Re-insert and tighten the four screws  
with a Phillips screwdriver.  
Step #7 Insert the screws  
location of screws  
14 Turn the unit over so that the glass side  
is facing up.  
insert the scanner lid  
you can now re-insert the scanner lid, with  
the lid in the open position.  
15 Align the lid hinges with the slots of  
the top cover and slide them in.  
scanner lid being re-inserted in scanner  
 
16 Close the scanner lid.  
reconnect your scanner  
You can now reconnect the USB cable and the power supply to the scanner.  
For instructions on connecting the cables see the setup instructions that came with your  
scanner.  
 

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