APPENDIX D
OPTIONAL BUFFER EXPANSION
The FormsPro 4000 series printers are available with an optional buffer expansion that increases the input buffer from 4K to 28K characters. This option can be installed either at the factory or in the field. Field installation, as described below, should be performed only by qualified service personnel. For installation, please contact the company who sold you the printer or contact Printek, Inc. Customer Service at
CAUTION: The buffer IC as well as other components of the printer can be damaged by static electricity. When you install this option, try to do so in an uncarpeted area if possible. Before touching the printer electronics, touch the metal case of the printer to discharge any static charge you may be carrying.
1.Turn the printer off.
2.Remove the three screws on the rear of the unit that secure the top cover in place. Then slide the top cover out of the back of the printer to expose the main circuit board.
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