HP LaserJet 4v/mv Service Manual - Page 225
BI/O Information
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B I/O Information CAUTION Figure B-1 Bi-Tronics Parallel Cable Information The Bi-Tronics parallel interface is compatible with Centronics parallel interfaces. To take advantage of its enhanced capabilities such as bi-directional communication between the computer and printer, faster transmission of data, and auto configuration of printer drivers the customer must have: • Support in software applications for these features. • A parallel cable with the correct pin configuration (see below). Parallel Cable Pin Configuration For best results, use the C24542D, C2950A, C2951A cable, or equivalent. Most existing parallel cables support Bi-Tronics communication, but some might have incompatible pin assignments. Ensure that all power and interface cables on the printer and host computer are properly grounded in compliance with local codes. Parallel Cable Pin Assignments (C24542D) I/O Information B-1