User manual HP SCANJET 8350 DOCUMENT FLATBED SCANNER SETUP AND SUPPORT GUIDE

[. . . ] Cleaning the underside of the glass requires you to disassemble the scanner. For instructions on cleaning the underside of your scanner glass, click on the name of your scanner model. Perform this procedure only if it is absolutely necessary. Disassemble the scanner in a clean, dust-free space. This module is organized into the following sections: · · · · preparation disassembly cleaning reassembly preparation Tools needed: · Phillips screwdriver Supplies needed: · · Glass cleaner Lint-free cloths Disconnect the USB cable between the scanner and computer. [. . . ] Disconnect the power supply from the scanner. 1 2 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 TMA After steps 1 and 2 have been completed and the scanner has cooled for 15 minutes, you can remove the TMA as shown. 3 Unplug the TMA and open the lid and lift it straight up. Unplug TMA Scanner lid being removed Scanner components: · · TMA (1) scanner top cover (2) 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. 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 TMA you can now re-insert the scanner TMA, with the lid in the open position. [. . . ] 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 TMA you can now re-insert the scanner TMA, with the lid in the open position. [. . . ]