Epson TM-H6000 Service Manual page 124

Confidential
Movable blade mechanism
The paper cutter motor is mounted to the paper cutter cover, and the cutter motor gear is
pressure fit onto the motor shaft. A DC brush motor is used as the paper cutter motor. The gear
drive shaft (fit on the paper cutter cover) is supported in such a way to allow the drive gear to
rotate. The drive gear is held to the paper cutter cover by a push nut. The rotation speed of the
paper cutter motor is reduced when it is transmitted from the paper cutter motor gear to the
drive gear. This force rotates the drive pin which is pressure fit on the drive gear.
A micro switch to detect the position of the fixed blade is mounted to the paper cutter cover.
The drive gear is integral with a cam, which turns the micro switch on and off. The paper cutter
motor and micro switch are connected to the intermediate circuit board by the paper cutter lead
wire.
A movable blade holder, spacer, movable blade, movable blade retainer spring, and a movable
blade spring washer are located on the movable blade shaft fit onto the paper cutter frame, and
are held to the paper cutter frame by a push nut.
The movable blade has a drive pin, which is fit into an oblong hole. When the drive pin on the
frame cover enters this oblong hole and rotates, the movable blade rotates to the left around the
movable blade shaft. The micro switch is Off (open) when the movable blade is in the standby
status.
Driving cutter blade shaft
Autocut operation
The frame cover can be closed when the movable blade is at the standby position. When the
frame cover is closed, the shaft located on the frame pushes up the blade shutter, exposing the
fixed blade. A portion of the fixed blade makes contact with a portion of the paper cutter frame,
determining the relative positions of the fixed blade and movable blade. The autocutter can
perform the autocut operation from this position.
The autocut operation is performed as follows:
Rev. A
Driving gear
Micro switch
Paper cutter motor
Paper cutter cover
Figure D-43
TM-H6000/H6000P Service Manual
Movable cutter blade
Movable cutter blade shaft
Lead wire
Product Overview Appendix D-33