公开(公告)号：DE3163131D1

公开(公告)日：1984-05-24

申请号：DE3163131

申请日：1981-01-23

Applicant: IBM

Inventor： DODGE JOHN HAROLD ,  ERNST LARRY MASON

IPC: G05B23/02 ,  G01R31/00 ,  G03G15/00 ,  G05B19/048 ,  H02H7/08 ,  G05B19/04

Abstract: An electrically powered machine (12) is coupled to a power source (11) via a safety relay (101). The machine includes a motor (14) energised through a switch (15) and coupled to an emitter device (16, 17) which generates pulses upon rotation of the motor. A control system (10, 102, 103) controls operation of the switches and is responsive to pulses from the emitter device. To test whether the relay and switch are actually under control of the control system, the output register thereof registers, in the appropriate bit positions (M and R) bits to open the relay and switch in sequence. If emitter pulses are received when either of the relay or switch should be open, then an inhibit signal inhibits operation of the machine.

公开(公告)号：DE3162795D1

公开(公告)日：1984-04-26

申请号：DE3162795

申请日：1981-07-06

Applicant: IBM

Inventor： DODGE JOHN HAROLD ,  ERNST LARRY MASON

IPC: G03G15/22 ,  G03G21/00 ,  G03G21/14

公开(公告)号：DE3369750D1

公开(公告)日：1987-03-12

申请号：DE3369750

申请日：1983-10-17

Applicant: IBM

Inventor： DODGE JOHN HAROLD ,  EICHHORN THOMAS FRANKLIN ,  STEVENSON PETER ALAN

IPC: G03G21/00 ,  G03G15/08

公开(公告)号：DE3264035D1

公开(公告)日：1985-07-11

申请号：DE3264035

申请日：1982-07-13

Applicant: IBM

Inventor： DODGE JOHN HAROLD ,  ERNST LARRY MASON

IPC: G03G15/20 ,  G05D23/20

Abstract: During each copier warm-up period, a micro processor 40, D/A 41 and network 53 apply a signal of decreasing steps to a comparator 52, which also receives an input from a fuser temperature sensor 50. When the sensor signal exceeds the step signal, the control logic for the copier is enabled since the fuser temperature profile is set at an adequate level for proper fusing.