Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
123 words
Fuser apparatus for fixing toner images on substrate material, said apparatus comprising: first and second roll members; a heating element disposed internally in one of said members and a source of energy therefor; means for controlling the surface temperature of said roll first during a standby mode followed by a fusing mode and then a standby mode again; said control means for controlling said surface temperature during a standby mode controlling it at a first temperature level and during said fusing mode at a second temperature level which is lower than said first temperature level; means for delaying control at said second temperature after termination of said standby mode and for delaying control at said first temperature after termination of said fusing mode.
Claim 2
Dependent Claim
123 words
Fuser apparatus for fixing toner images on substrate material, said apparatus comprising: first and second roll members; a heating element disposed internally in one of said members and a source of energy therefor; means for controlling the surface temperature of said roll first during a standby mode followed by a fusing mode and then a standby mode again; said control means for controlling said surface temperature during a standby mode controlling it at a first temperature level and during said fusing mode at a second temperature level which is lower than said first temperature level; means for delaying control at said second temperature after termination of said standby mode and for delaying control at said first temperature after termination of said fusing mode.
Claim 3
Dependent Claim
18 words
Apparatus according to claim 1 wherein said predetermined delays are in the order of 5 to 30 seconds.
Claim 4
Dependent Claim
13 words
Apparatus according to claim 1 wherein said delays are each approximately 8 seconds.
Claim 5
Dependent Claim
82 words
Apparatus according to claim 1 wherein said means for controlling the surface temperature of said one of said roll members comprises: means for generating a signal proportional to the temperature of said surface; means for generating a reference temperature signal; means for comparing said signals and generating an output signal when said surface temperature sensed is below the predetermined temperature; and means for varying said means for generating said reference temperature signal to thereby provide for said first and second temperature levels.
Claim 6
Dependent Claim
40 words
Apparatus according to claim 4 wherein said means for varying said means for generating reference signal comprises means including a plurality of resistors and switch means operative to vary the number of resistors that are functional at any one time.
Claim 7
Dependent Claim
39 words
Apparatus according to claim 5 wherein said means for varying said means for generating a reference signal further comprises means for actuating said switch means in accordance with the mode of operation of said one of said roll members.
Claim 8
Dependent Claim
33 words
Apparatus according to claim 5 wherein said means for varying said means for generating a reference signal further comprises a flip-flop device operatively connecting said switch means to a plurality of additional switches.
Claim 9
Dependent Claim
27 words
Apparatus according to claim 7 wherein said additional switches comprise a power on switch, a copy start switch, a copy enable switch, and a run completion switch.
Claim 10
Dependent Claim
31 words
Apparatus according to claim 8 wherein all of said additional switches except said power on switch are provided with a timer to provide said delays when their associated switches are actuated.