User Manual

F R M - 1 1 2 0 C I N S T R U C T I O N M A N U A L
52
Problem Possible Causes Solution
Printing wheel does not rotate
1. Sensor is blocked
2. Sensor is not clean and eye is
blocked by dust
1. Make sure sensor is not blocked
2. Clean sensor
3. Replace PCB (BS-52C)
Printing wheel does not stop
rotating
1. Sensor (groove) is damaged or
dirty
2. Photoelectric sensor is damaged
or dirty
3. Main control PC Board is damaged
1. Replace or correct position of the groove
sensor or clean its surface (BS-65)
2. Replace or clean photoelectric sensor (BS-60)
3. Repalce PC Board (BS-52C)
No heat on the ink heating block
1. Heating element in heating block
is damaged
2. Heating PCB is damaged
3. Potentiometer w/ PC Board (BS-
50A) is damaged
4. Carbon brush is not in place
5. Carbon brush is damaged
1. Replace element (BS-48C) in heating block
2. Replace PCB (BS-50A)
3. Replace potentiometer with PC Board (BS-50A)
4. Adjust and tighten nut on carbon brush seat
5. Replace carbon brush
Temperature of heating block for
ink roller cannot be regulated
Relay for temperature control PCB is
damaged
Check and replace temperature control PCB (BS-
50A)
Printing position cannot be
regulated
1. Tighten screw on printing wheel
2. Coding seat potentiometer may be
damaged
1. Tighten screw on printing wheel.
2. Replace coding seat potentiomter (BS-51)
Motor runs at a high speed and
cannot be regulated
Speed controller has malfunctioned Replace the speed controller (BS-52A)
Power, heater, and or fan switches
do not light up
1. No AC Voltage
2. Open Fuse
3. Lamp is damaged
Check power source / power cord
Connect the power
Replace the fuse
Replace the lamp