Cutting Head Errors; Other Errors - MUTOH SC-550 Maintenance Manual

4.3.3. Cutting head errors.

PROBLEM SYMPTOM
- Position Timeout Moving Coil
(MC)
- OVER CURRENT Moving Coil
(MC)
- A/D failure Moving Coil (MC)

4.3.4. Other errors.

PROBLEM SYMPTOM
System is dead :
- No movement
- No LED's lighted
Some LED's lighted but no
movement of the motors and
cutting head.
- Plotter powers on, head
UP/DOWN initialises but no
movement of motors.
Plotter does not shuffle media.
Illegal mainboard revision (LED
code on LED bar)
Wrong mainboard (LED code on
LED bar)
POSSIBLE CAUSE
- Nose piece of knife holder
(XPC model) not fixed
- Blade is too far out
- Sheet off mechanism blocks
UP/DOWN movement (Not on
SC-550)
- Head flex cable bad or poor
connection
Bad cutting head
-
- Failure in drive circuit
-
POSSIBLE CAUSE
- Power failure
- Defective Power supply (P/S)
- Defective Mainboard
- Defective EPROM's
- Defective EEPROM
Defective mainboard
-
- Poor connection between
main and terminal board
- Transparent cover is not
closed
- Transparent cover switch
defective
- Pressure roller lever is not
DOWN
Bad lever sensor
-
- Both media sensors are not
covered
- Media sensors dusty or bad
- Mainboard version is not
compatible
Mainboard from SC-550 is
-
used in SC-series or vice
versa
27
Maintenance Manual – SC Cutting Plotter
SUGGESTED ACTIONS
- Check knife holder
- Check blade depth
- Check sheet off mechanism
(Not in SC-550)
- Check connections or replace
head flex cable
- Replace cutting head
- Replace main PC board
SUGGESTED ACTIONS
- Check power cord
- Check wall outlet
- Check fuse on P/S
- Check LEDs on P/S
- Replace P/S
- Replace mainboard
- Replace EPROM's
- Replace EEPROM
Replace mainboard
-
- Check cable connections
- Close the cover
- Check or replace cover switch
- Lower the lever
- Check the lever sensor
Load media properly
-
- Clean or replace media
sensors
- Use correct mainboard
Use correct mainboard
-
AP-74030, Rev / B