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Maintaining HiResolve
Maintaining the HiResolve Scanner
Regular maintenance of your Howtek HiResolve consists of periodic cleaning, replacement of the lamps, drum drive belt, and drum calibration strip when necessary, and lubrication of the lead screw. How often the scanner requires cleaning depends on how much scanning you do, how frequently you mount transparencies with oil, how much excess oil remains on the drum, and the cleanliness of the room in general.

WARNING! To prevent personal injury, always turn the power switch off and unplug the power cord from the outlet before cleaning or performing any maintenance on the scanner.

The following procedures are covered in this section:
 


 

Cleaning the Scanner Cabinet Exterior
 
  1. Turn the power switch off.
     
  2. Unplug the power cord from the outlet.
     
  3. Clean the exterior of the scanner with a soft, lint-free damp cloth and wipe dry.


CAUTION: Do not use paper materials such as facial tissue or paper towels. You may use a mild cleaning solution if the cabinet has become so soiled that a damp cloth does not remove the stain. If you have questions about a particular cleaning solution, contact your dealer.

CAUTION: Do not use ammonia-based cleaning products on the scanner. Do not disassemble the scanner or lubricate any parts other than those specifically indicated in this section.

Cleaning the Scanner Cavity
For optimum performance, the scanning cavity must be kept free of dust and oil.
Follow this procedure:
 
  1. Turn the power switch off.
     
  2. Unplug the power cord from the outlet.
     
  3. Clean the cavity with a soft, lint-free cloth moistened with a non-volatile degreasing solution.


You may use the recommended drum cleaner included in the Drum and Accessories Kit that comes with the scanner. You may also use an aerosol can of compressed air to remove dust.

CAUTION: Do not spray cleaning solution directly onto surfaces inside the scanner. Use only a lightly moistened cloth. Do not use paper materials such as facial tissue or paper towels. If you have questions about a particular cleaning solution, contact your dealer.
 

Cleaning the Analyzer Lens
If you frequently scan oil mounted transparencies, the analyzer lens may become contaminated with oil. Oil or foreign matter on the lens may cause distortions in your scans.
To clean the analyzer lens follow this procedure:
 
  1. Remove the drum from the scanner.
     
  2. In the OFF LINE state, press the RIGHT ARROW on the control panel until the TESTS function is displayed.
     
  3. Press ENTER.
     
  4. Press the RIGHT ARROW until the CARRIAGE option is displayed.
     
  5. Press the DOWN ARROW until the CARRIAGE STEP option is displayed.
     
  6. Press the RIGHT ARROW to move the carriage far enough to the right to freely access the Fiber Optic Reflectance Illuminator (FORI). The FORI is attached to the analyzer lens.
     
  7. Remove the FORI:
     
    • Insert the long end of the Allen wrench (located in the front of this user guide) into the small hole on the left side of the FORI and turn counterclockwise one revolution:
       
    • Gently pull the FORI assembly off and place it into the scanner cavity.


     

  8. Using only lens tissue and lens cleaner, wipe the surface of the lens. Use a can of clean compressed air to blow any remaining particles off the lens.
     
  9. Reinstall the FORI:
     
    • Place the FORI over the lens with the attached cable slightly to the left of top center.
       
    • Tighten the Allen screw by turning it clockwise one revolution. Do not over-tighten.


     

  10. Return the scanner to the READY TO SCAN state.
     
Replacing the Lamps
The scanner includes two identical tungsten halogen reflector lamps, one lamp for the reflective mode and one for the transparency mode. Each lamp is mounted in a mechanical assembly that ensures proper alignment when installed.

WARNING! The lamps are hot during scanning. Wait at least five minutes after the lamps have been turned off before replacing them.

To replace a lamp assembly, follow these steps:
 
  1. Turn the power switch off.
     
  2. Unplug the power cord from the outlet.
     
  3. Open the lamp access door on the top of the scanner.
     
  4. Locate the desired lamp assembly.
     
  5. Gently unplug the lamp connector from behind the bulb.
    Note: The reflective and transparency lamp assemblies are interchangeable; the connectors, however, are not.
     
  6. Pull up on the two locking pins that hold the lamp assembly in place:
     
  7. Lift the lamp mount with bulb up and out of the scanner cavity.
     
  8. Grasp the new lamp assembly by the base plate
    (DO NOT TOUCH THE LAMP WITH YOUR FINGERS) and place into position. When the assembly is in position, the alignment pins on the bottom of the base plate will click into place.
     
  9. Press down on the two locking pins. Make sure the lamp assembly is securely in place.
     
  10. Connect the lamp assembly to the proper electrical connector and close the drum access door.
Replacing the Drum Drive Belt
The drum drive belt connects the motor with the headstock spindle. The belt should be replaced if it appears chipped or cracked or if you find pieces of rubber on the bottom of the scanner cavity.

To replace a belt, follow this procedure:
 
  1. Remove the drum from the scanner.
     
  2. Locate the drive belt on the left side of the carriage, attached to the head stock.
     
  3. Pull the old belt off with your fingers.
     
  4. Put the new belt on. No tools or tension adjustments are required.
Replacing the Drum Calibration Strip
The calibration strip should be replaced if it becomes scratched or visibly damaged. A damaged calibration strip can result in horizontal light or dark streaks across the scanned image. If the strip becomes dirty, it can be cleaned with drum cleaner.

CAUTION: The drum surface is fragile; be careful not to scratch it. Do not use hard instruments to remove the calibration strip or adhesive. Do not use any unauthorized cleaning materials.

To replace the calibration strip, follow this procedure:
 
  1. Remove the drum from the scanner.
     
  2. Peel off the old strip.
     
  3. Remove any adhesive residue with drum cleaner.
     
  4. Clean the entire area where the new strip will be mounted. Let the drum dry thoroughly. Make sure your hands are clean and dry before proceeding.
     
  5. Mount the drum into the scanner.
     
  6. Peel the adhesive backing off the new strip.
     
  7. Roughly align the strip between the two red areas.
     
  8. Place the strip on the drum such that the edge of the strip is against the axial scribe line.
     
  9. Roll the strip onto the drum. Smooth out the strip with your fingers, making sure to remove any bubbles or wrinkles.
Lubricating the Lead screw
The lead screw drives the drum carriage and is located beneath it. Normal use of the scanner (approximately 30 scans per day) should not require additional lead screw lubrication. However, differences in environmental conditions may require cleaning of the scanner, including the lead screw. This requires re-application of lubricant.
The recommended lubricant is Kluber Isoflex Topaz NCA-52.

To lubricate the lead screw, follow these steps:
 
  1. Power on the scanner.
     
  2. Open the drum access door and remove the drum.
     
  3. In the OFF LINE state, press RIGHT ARROW on the control panel until the TESTS function is displayed.
     
  4. Press ENTER.
     
  5. Press RIGHT ARROW until the CARRIAGE option is displayed.
     
  6. Press DOWN ARROW until the CARRIAGE STEP option is displayed.
     
  7. Press RIGHT ARROW to move the carriage completely to the right until it stops.
     
  8. Using a syringe, apply a small amount of lubricant to several sections of the screw.
     
  9. Operate the scanner in the normal manner and the lubricant will be distributed evenly.
     
  10. Clean excess lubricant from the screw.

 



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