
e-STUDIO182/212/242
© 2009 TOSHIBA TEC CORPORATION All rights reserved
LASER OPTICAL UNIT
7 - 6
7.4
Polygonal Motor Control Circuit
The polygonal motor is a DC motor rotated by a clock signal (PMTRCLK) output from the SoC. This
motor is controlled under PLL (Phase Locked Loop) to realize an accurate and constant rotation. Its
rotation status is converted to a status signal (PMTRSTS-0) and then output to the ASIC. PMTRSTS-0
signal moves to a low level only when the rotation status of the motor is constant. The SoC detects the
rotation status with this signal, and emits a laser beam only when the rotation status is constant.
Fig. 7-9
Signal
Function
Low level
High level
PMTR-0
Polygonal motor ON signal
ON
OFF
PMTRCLK
Polygonal motor reference clock
-
-
PMTRSTS-0
Polygonal motor PLL control signal
Rotating at a constant
speed
Stopping or error
IC23
ASIC
IC53
SoC
PMTR-0
PMTRSTS-0
PMTRCLK
PMTRCLKB
PMTR-0A
Polygonal motor
+5V
+24V
PG
IC24
IC15
MAIN board
Содержание e-studio182
Страница 12: ......
Страница 18: ...e STUDIO182 212 242 2009 TOSHIBA TEC CORPORATION All rights reserved CONTENTS 6 ...
Страница 62: ...e STUDIO182 212 242 2009 TOSHIBA TEC CORPORATION All rights reserved OUTLINE OF THE MACHINE 2 36 ...
Страница 76: ...e STUDIO182 212 242 2009 TOSHIBA TEC CORPORATION All rights reserved COPY PROCESS 3 14 ...
Страница 120: ...e STUDIO182 212 242 2009 TOSHIBA TEC CORPORATION All rights reserved SCANNER 6 26 ...
Страница 128: ...e STUDIO182 212 242 2009 TOSHIBA TEC CORPORATION All rights reserved LASER OPTICAL UNIT 7 8 ...
Страница 228: ...e STUDIO182 212 242 2009 TOSHIBA TEC CORPORATION All rights reserved FUSER EXIT UNIT 12 24 ...
Страница 252: ...e STUDIO205L 255 305 355 455 2009 TOSHIBA TEC CORPORATION All rights reserved EXTERNAL COUNTERS 15 4 ...
Страница 257: ......
Страница 258: ......