Toshiba MD-0101 Manuale Utente

MD-0101 CIRCUIT DESCRIPTION

5 - 2

October 2000 © TOSHIBA TEC

The ADU cover open switch is a switch which detects the open or close state of the cover.  A push switch

is used for the switch.  The signal goes LOW when the cover is closed, and HIGH when it is open.

The ADU paper jam sensor (upper/lower) detects the presence or absence of paper in the transfer path.

Photo sensors are used for the sensors.  When paper passes, the sensor arm in the transfer path is

pressed to turn on the sensor.

The ADU motor (lower) and ADU motor (upper) are 2-phase excitation PM type pulse motors (stepping

motors) and operate according to the drive signals from the driver IC’s (IC1, IC2).

Signal name

Part name

Functional description

Status

Note

ADUFL

ADU paper jam

Detects the transport of

High: Paper present Photo sensor

sensor (Lower)

paper (Lower)

ADUFU

ADU paper jam

Detects the transport of

High: Paper present Photo sensor

sensor (Upper)

paper (Upper)

ADUCOVSW

ADU cover

Detection of cover

High: Open

Push switch

open switch

open/close status during

jam processing, etc.

EXMA-D

ADU motor

Drives the roller to transport

-

PM type

(Upper)

paper (Upper)

pulse motor

FDMA-D

ADU motor

Drives the roller to transport

-

PM type

(Lower)

paper (Lower)

pulse motor