IBM LA75P manual Paper Surface Smoothness, Tolerance, Paper Weight, Paper Storage Recommendation

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Paper Surface Smoothness

A single sheet of paper must have a surface within a smoothness range of 18 to 30 Bekk or 180 to 140 Sheffield.

The under side of the last page in a multi-form set must have a smoothness range of 18 to 30 Bekk or 180 to 140 Sheffield.

Tolerance

Since variable length paper may be used in the sheet feeder, only width is specified. The paper width tolerance in the same stack is 0.020" (0.51 mm). Paper must be cut at an angle of 90 degrees and the deviation must not be greater than 3 angular minutes.

Paper Weight

Single sheets 16-24 lbs (64 - 96g/m²).

Paper Storage Recommendation

64°F - 75°F 18°C - 24°C

40% - 60% relative humidity

Multi-part Forms

Multi-part forms are more complex than single sheets and adherence to tolerances and environmental conditions is more critical. You should use snap-out or top-glued form sets. You should test them before use.

Top-glued Forms The top edge of top-glued forms must be flat, smooth, and free of glue vestiges. Form sets should be cut against the grain. On each side of the form there should be an unglued 0.7" (20mm) wide.

Snap-out Forms The snap-out perforation ratio hole to paper must be 7:0.8 (first sheet and copies) and 3:0.8 (last sheet). An alternative can be micro- perforation for the first and last sheet. (Recommended 72 dots/inch).

A–2 Paper Specifications and Technical Data

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Contents LA75 Plus Companion Printer Sheet Feeder Guide First Printing, July Contents Paper Specifications and Technical Data TablesPreface About This GuideAssociated Documentation Conventions Used in This GuideAbout the Automatic Sheet Feeder Assembling and Installing the Sheet Feeder Assembling the Sheet FeederItem Number Item Name Assembling and Installing the Sheet Feeder Unpack and check the contents Assembling and Installing the Sheet Feeder Assembling and Installing the Sheet Feeder Installing the Sheet Feeder Assembling and Installing the Sheet Feeder Loading Paper into the Sheet Feeder Preparing to Load the PaperLoading Paper into the Sheet Feeder Loading Paper into the Sheet Feeder Loading the Paper Loading Paper into the Sheet Feeder Page Operating and Removing the Sheet Feeder Operating the PrinterUsing the Sheet Feeder Removing the Sheet FeederGeneral Maintenance Maintaining the Sheet FeederMaintaining the Sheet Feeder Correcting Simple Problems Feeder does not operateThere is no paper feed More than one sheet feeds at a timeThere is a paper skew There is a paper eject malfunctionPaper Specifications Paper Specifications and Technical DataPaper Type and Quality Paper Weight Paper Surface SmoothnessTolerance Paper Storage RecommendationTable A-1 Technical Data