Browse Prior Art Database

RETURN TO NOMINAL TONER RATE CONTROL

IP.com Disclosure Number: IPCOM000023735D
Original Publication Date: 1978-Dec-31
Included in the Prior Art Database: 2004-Mar-31
Document File: 2 page(s) / 391K

Publishing Venue

Xerox Disclosure Journal

Abstract

When the operator of a xerographic machine displaces the toner dispensing rate control from its nominal position in order to darken or lighten the reproduction of a particular document, it is desirable for the toner dispenser to automatically return to the nominal rate during subsequent operation of the machine, A mechanical system for accomplishing this is disclosed,

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XEROX DISCLOSURE JOURNAL

RETURN TO NOMINAL

CONTROL

Donald J~ Weikel,

Proposed Classification

U~S~C1~ 222/63
mt. Cl. B67d 5/08

TONER RATE

Jr

H

FIG. /

FIG. 2

Volume 3 Number 6 November/December 1978 407

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RETURN TO NOMINAL TONER RATE CONTROL (Cont~d)

When the operator of a xerographic machine displaces the toner
dispensing rate control from its nominal position in order to
darken or lighten the reproduction of a particular document,
it is desirable for the toner dispenser to automatically
return to the nominal rate during subsequent operation of the
machine, A mechanical system for accomplishing this is
disclosed,

The disclosed mechanism consists of a block 1 mounted on rails
2 to be moved to one side or the other by the operator in order
to select the desired toner dispensing rate, A shaft or drive
roller 3, constantly rotating at a fixed speed in the
direction shown, drives the block 1 by contact with a
frictional drive surface 4 or 5. Cams 6 and 7 on the block 1,
respectively, operate switches 8 and 9, which actuate the
conventional motor ~M~'which drives the toner dispenser.

Figure 1 shows the mechanism in the nominal position, with
only switch 8 closed, causing the toner dispenser motor M to
turn at the nominal dispensing speed, Since the drive shaft 3
is not engaged with either of the two drive surfaces 4 or 5,
the block 1 remains stationary,

Figure 2 shows the block or knob 1 displaced to the left in the
fast to...