Platen Roller Replacement

When replacing the platen rollers in a Sato LT408 printer, the following steps must be performed:

Print Head Platen Roller (A)

• Release the print head
• Using a #2 Phillips-head screwdriver, loosen the screw securing the platen roller
• Rotate the retaining clip until it is no longer applying pressure to the platen roller
• Move the roller to the right until its left side is no longer seated inside the spine plate
  • The bearing and spacer will be placed on the new roller, so be sure they do not fall off when moving the roller
• Remove the bearing and spacer from the right end of the platen roller
  • Place these parts somewhere they will not be lost until the new roller is placed in the printer
• Swing the left side of the roller forward and remove the roller from the printer
• Place the new roller in the printer 
  • The right side will be seated first, followed by the left, using the reverse steps taken to remove the old platen roller
    • Keep the new platen roller pushed to the right, as was done with the old roller before it was removed
• Place bearing and spacer on the new roller
• Move roller to the left, ensuring that the gear on the left side of the roller is seated inside the spine plate
• Rotate the retaining clip until it is seated over the platen roller and tighten the screw
  • The clip should not touch the platen roller shaft once tightened

Pinch Gate Platen Roller (B)

• Release the print head
• Using a #2 Phillips-head screwdriver, loosen the screw securing the platen roller
• Rotate the retaining clip until it is no longer applying pressure to the platen roller
• Release the pinch gate and hold the pinch gate bracket back to keep it out of the way
• Move the roller to the right until its left side is no longer seated inside the spine plate
• Swing the left side of the roller forward and remove the roller from the printer
• Place the new roller in the printer 
  • The right side will be seated first, followed by the left, using the reverse steps taken to remove the old platen roller
    • Keep the new platen roller pushed to the right, as was done with the old roller before it was removed
• Move roller to the left, ensuring that the gear on the left side of the roller is seated inside the spine plate
• Rotate the retaining clip until it is seated over the platen roller and tighten the screw
  • The clip should not touch the platen roller shaft once tightened