Universal Laser Systems X-600 Safety, Installation, Operation, And Basic Maintenance Manual page 41

Operational
Focus carriage looses X-axis position
and slams into the left or right side of the
rail during high speed raster engraving
When homing, the arm slams repeatedly
for a few seconds
When focusing, the Z-axis table only
moves in one direction
When using Autofocus, the table moves
all the way down to the bottom and gets
stuck
When printing to the laser system, the
computer gives an error message
"Printer out of paper" or "Printer offline
and not responding"
When running the laser system, the laser
system will "freeze", the clock will keep
advancing, but the operator will have no
control over the system. The only way to
restore the system is to power the laser
off and then back on. This is a symptom
of file corruption.
BASIC MAINTENANCE
 Mechanical interference
Dirty laser system

CPU overheating

 X-belt too tight
Worn or binding X-axis bearings

 Worn or binding X-axis idler pulley
Worn or binding X-axis motor

Firmware needs updating

Bent Y-flag

Dirty or faulty home sensor(s)

Dirty or faulty Z-axis sensor

 Autofocus sensor or reflector is dirty
 Autofocus sensor is misaligned
 Laser not turned on
 Computer is locked up
 Parallel port cable not connected or
not connected properly
Laser system is out of memory

Single file is too large for memory

installed in laser system
Bad parallel port in computer system

Damaged port in CPU

Incorrect BIOS setting in computer

Using a printer cable longer than 6

ft.
 Bad printer cable
Usage of device in between

computer and laser system
Some other parallel port driver

interfering with the laser system
printer driver
 Damaged port in CPU
Section 4-9
 Check if focus carriage makes
contact with material or other
objects
Clean all optics, rails, bearings and

belts
Clean CPU filters, correct ambient

temperature to be within
specifications
 Check and/or adjust
Check and/or replace

 Check and/or replace
Check and/or replace

Check with Service Department

Check and/or straighten

Replace upper flex board

Try to clean sensor(s) with

compressed air, otherwise replace
sensor
 Clean sensor and/or reflector
 With the Z-axis table out of the way
of the Autofocus beam, check the
sensor for only an illuminated green
light. A red light, both lights, or no
lights indicate a misalignment or
dirty condition. Clean, re-check, and
re-align the Autofocus sensor.
 Turn on laser system
 Re-boot computer and laser system
 Connect cable or reseat connection
at computer and/or laser system
Check "Free Memory" in laser

system control panel. Clear laser
system memory and try again
Purchase more memory

Try printing to another printer using

the same port
Replace laser system's CPU

Refer to manual on proper setting

Use only a 6 ft., IEEE1284

compliant printer cable
 Replace printer cable
Connect the laser system directly

from computer with the printer cable
Remove all other parallel port

drivers and try again
 Replace laser system's CPU