31
Problem
Reason
Solution
Ink
roller
printing
mechanism doesn’t work
1. The power supply is not connected.
2. Main control PC board is not
inserted in place or poor contact.
3. Main control PC board is damaged.
1. Check whether the power line is
connected and indicating light is on.
2. Check whether plug for PC board is
inserted in place.
3. Check and replace PC board.
Printing wheel doesn’t
work.
1. start sensor’s touching head is
blocked.
2. Start sensor is not clean, whose
hole is blocked by dust.
3. Main control PC board has been
damaged.
4. Round pin on clutch falls off or is
damaged.
5. Electromagnetic c
lutch’s wire is
broken.
1. Clean the obstacle.
2. Clean the dust on sensor’s surface.
3. Check and replace PC board.
4. Repair round pin.
5. Repair clutch.
Printing wheel doesn’t
stop.
1. Sensor (groove sensor) is damaged,
moved, or its surface covered by dust.
2. Main control PC board is damaged.
1. Replace or correct position of
sensor or clean its surface.
2. Check PC board and replace it.
No heat for ink roller
heating block or printing.
1. Heating pipe or wire is damaged.
2. Heating PC board is damaged.
3. The potentiometer on knob is
damaged.
4. Carbon brush seat is not in place.
5. Carbon brush is damaged.
1. Replace heating pipe.
2. Replace PC board.
3. Replace potentiometer.
4. Adjust and tighten nut then.
5. Replace.
The
temperature
of
heating block for ink roller
printing mechanism is out
of control.
The relay for temperature control PC
board is damaged.
Check and replace temperature control
PC board.
The printing position is out
of control.
1. Tightening screw on printing wheel
is loose.
2. Main control PC board is damaged.
1. Tighten the screw.
2.Check and replace PC board.
The speed is a little lower
the speed potentiometer is not exact
adjust the speed switch
The noise of reducer is
risen
replace the greasel of reducer
add #000 great wall extreme pressure
lithium grease
The bag can`t feed to
heating area
the gap between lower and upper
heating block is too small
adjust the switch of upper heating
block and change the pressure of
spring