Instruction/ maintenance manual of the product X790 Lexmark
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X790 Series Maintenance Guide August 2011 www.lexmark.com.
Contents Maintaining the printer ................................................................................3 Cleaning the exterior of the printer ...................................................................................................
Maintaining the printer Periodically, certain tasks are required to maintain optimum print quality. Cleaning the exterior of the printer 1 Make sure that the printer is turned off and unplugged from the wall outlet.
Cleaning the scanner glass Clean the scanner glass if you encounter print quality problems, such as streaks on copied or scanned images. 1 Slightly dampen a soft, lint-free cloth or paper towel with water.
4 Open the bottom ADF door. 5 Wipe the ADF scanner glass under the ADF door. 6 Close the bottom ADF door. 7 Close the scanner cover. Cleaning the ADF parts Clean the ADF parts periodically to maintain optimal printing performance. Residue on the ADF parts may cause print quality issues and false 280–299 paper jam messages.
4 Remove the pick roller assembly. 5 Wipe the surface of both pick rollers. 6 Replace the pick roller assembly. 7 Wipe the entire surface under the ADF cover.
Cleaning the printhead lenses Clean the printhead lenses when you encounter print quality problems. 1 Open the front door. 2 Remove all print cartridges. Warning—Potential Damage: Do not touch the shiny area on the photoconductor drum. Doing so can damage the photoconductor.
6 Close the front door. Storing supplies Choose a cool, clean storage area for the printer supplies. Store supplies right side up in their original packing until you are ready to use them.
Ordering supplies To order supplies in the U.S., contact Lexmark at 1-800-539-6275 for information about Lexmark authorized supplies dealers in your area. In other countries or regions, visit the Lexmark Web Site at www.lexmark.com or contact the place where you purchased the printer.
Ordering a waste toner bottle When 82 Waste toner bottle nearly full appears, order a replacement waste toner bottle. When 82 Replace waste toner bottle appears, replace the waste toner bottle.
Replacing supplies Replacing a print cartridge 1 Open the front door. 2 Lift the green handle and pull the print cartridge. Grasp the top handle and lift the cartridge out of the machine. 3 Place the old cartridge in the replacement cartridge shipping box, and then attach the return label to the box for shipping.
4 Unpack a new print cartridge. Warning—Potential Damage: Be careful not to touch the photoconductor drum. Doing so may affect the print quality of future print jobs. 5 Shake the new cartridge front ‑ to ‑ back and side ‑ to ‑ side to evenly distribute the toner.
6 Remove the red packing strip from the new cartridge. 7 Insert the new cartridge into the printer, and then push the green handle back in place. Note: Make sure the cartridge is fully pushed in.
Replacing the waste toner bottle Replace the waste toner bottle when 82.xx Replace waste toner bottle appears. The printer will not continue printing until the waste toner bottle is replaced. 1 Remove the replacement waste toner bottle from its shipping box, and then unpack it.
6 Peel the recycling label off, and place it on the shipping box. 7 Insert the new waste toner bottle into the printer. 8 Close tray 1, and then close the front door. Moving the printer Before moving the printer CAUTION—POTENTIAL INJURY: The printer weight is greater than 18 kg (40 lb) and requires two or more trained personnel to lift it safely.
Moving the printer to another location The printer and options can be safely moved to another location by following these precautions: • Any cart used to move the printer must have a surface able to support the full footprint of the printer. Any cart used to move the options must have a surface able to support the dimensions of the options.
An important point after buying a device Lexmark X790 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Lexmark X790 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Lexmark X790 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Lexmark X790 you will learn all the available features of the product, as well as information on its operation. The information that you get Lexmark X790 will certainly help you make a decision on the purchase.
If you already are a holder of Lexmark X790, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Lexmark X790.
However, one of the most important roles played by the user manual is to help in solving problems with Lexmark X790. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Lexmark X790 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
