Browse Prior Art Database

Pull/ Push Printer Cooling System

IP.com Disclosure Number: IPCOM000107136D
Original Publication Date: 1992-Jan-01
Included in the Prior Art Database: 2005-Mar-21
Document File: 3 page(s) / 114K

Publishing Venue

IBM

Related People

Gregory, FA: AUTHOR [+4]

Abstract

Disclosed is a printer cooling system that provides simultaneous inductive and forced air flow in an impact line printer. In addition, it provides balanced air cooling air distribution across specific components, and it delivers high pressure air to cool two distinct hammer unit technologies in different printer models.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 56% of the total text.

Pull/ Push Printer Cooling System

       Disclosed is a printer cooling system that provides
simultaneous inductive and forced air flow in an impact line printer.
In addition, it provides balanced air cooling air distribution across
specific components, and it delivers high pressure air to cool two
distinct hammer unit technologies in different printer models.

      The cooling system is contained in a common base assembly
containing all electronic components and providing a compact unit
that is removable from the frame and cover set.  The figures
illustrate the air flow path.  The blower inducts air through the
frame and covers 1 (Fig.  1) to an inlet duct 2 (Fig. 2) in the
base assembly.  To provide high velocity uniformly distributed air to
the power supply and the carriage driver card and to maintain a
compact package, the blower is positioned in the base assembly to
induct air across both supply and card.  They are mounted (3) in
parallel to the air flow.  A cover partitions them from the remainder
of the machine to prevent recircultation of hot air and to maintain a
channel for the high velocity cooling air.  The blower then exhausts
the air into duct work 4 that provides air distribution to the hammer
unit coils and driver cards 5 (Fig. 3).  At this point, a pull/push
air flow system exists because the blower inducts and exhausts air to
cool both upstream and downstream components.  The cooling air is
then forced from the hammer unit 6, and cools o...