Gap Detection; Material Transport - Novexx Solutions 64 Series Service Manual

12/08 Rev. 5.01-02
Problem
Unfounded material
end message
Gap detection not
possible
Print position shifted
in or against print
direction
[3] Possible faults, caused by bad gap detection.
Problem
Material skew during
infeed
No transport
No feed function
Jolted print image
Material shifts
No material transport Pressure roller set in-
[4] Possible faults, caused by material transport.
SERVICE MANUAL

Gap detection

Possible cause
Position of photoelectric
switch not exact enough
Photoelectric switch defect
Photoelectric switches set
incorrectly
False sensor type selected Select "Punched" or "Reflex" using parameter
Gap position not recog-
nised consistently due to
gap contour
Sensortest instruction: see topic section „Electronics", paragraph „Sensor
test".

Material transport

Possible cause
Unfavourable position of
friction rollers
Unfavourable position of
friction rollers
Setting value of the contact
spring
Stepper motor plug loose
Stepper motor defective
CPU board defective
Feed button defective
Material unwinder blocked
Bouncer arm blocked
Material guide set in-
correctly
correctly
Drive belt defective
Stepper motor defective
Motordriver board defective Check and if necessary replace board
64-xx
Solution
Correct position of photoelectric switch
SERVICE FUNCTION > Sensor test
Check with
necessary replace
SYSTEM PARAMETER > Sens. punch-LS
Use
sensitivity
SYSTEM PARAMETER > Light sens. type
Correct sensor zero line using parameter
PRINT PARAMETER > Punch offset
Solution
Check and if necessary shift to side
Check and if necessary push on material
Check and if necessary correct
Check and if necessary plug in
Check and if necessary replace motor
Check and if necessary replace mainboard
Check and if necessary replace display board
Check and if necessary loosen
Check and if necessary loosen
Check and if necessary set
Check and if necessary set
Check and if necessary replace belt
Check and if necessary replace motor
3
Fault location
, if
to alter