Control Signals - Toshiba e-STUDIO 200L Service Manual

10.3.2

Control signals

1) MAMCW signal (LGC o MTR: Input)
This is a signal to switch the direction of the main motor rotation. When this signal becomes "H"
level, the main motor rotates clockwise as seen from the rear side, and drives the developer unit,
drum, fuser unit, etc. to the appropriate direction.
2) MAMPL signal (MTR o LGC: Output)
When the difference of the FG pulse cycle against the reference frequency is within ±6.25%, it is
specified that the motor is in a lock range (normal rotation), and this MAMPL signal becomes "L"
level. At this time, the LED "D4" is lit.
3) MAMCK signal (LGC o MTR: Input)
This is a reference clock signal to rotate the main motor at a fixed speed.
4) MAMBK signal (LGC o MTR: Input)
This is a signal to stop the main motor.
When it becomes "L" level, the main motor is braked.
5) MAMON signal (LGC o MTR: Input)
This is a signal to turn ON/OFF the main motor. When it becomes "L" level, the motor is rotated.
Signal level of the motor circuit
Signal
MAMCW CCW direction
MAMPL Abnormal rotation
MAMCK Reference clock signal
MAMBK Brake OFF
MAMON Motor OFF
* The signal names are for the connector CN305 (LGC board).
e-STUDIO200L/202L/230/232/280/282 DRIVE SYSTEM
Level "H"
CW direction
Normal rotation
Brake ON
Motor ON
10 - 4
Level "L"
June 2004 © TOSHIBA TEC