Victor Xu Page 73 12 Jan. 2011
Copyright 2011 © Shenzhen Runtianzhi Image Technology, Co., Ltd.
http://www.floradigital.com
Appendix C Troubleshooting Guide
Problems Probable Causes Solution
One particular
color is not
printing
o No ink flowing to the tube line
of the Print head Carriage
o Empty ink supply in the Ink
barrel
o Clogged Ink line tubing and
ink filter
o Defective Ink Pump
o Defective Print head Control
Board
o Defective Motion Control
Board
o Air bubbles on the ink tube
1. Fill-up empty ink barrel
2. Replace clogged ink line tubing and ink
filter
3. Replace defective Ink Pump
4. Replace defective Print head Control
Board
5. Replace defective Motion Control Board
6. Purge air from the affected ink tube.
1. Some Print head
Nozzles are not
firing
2. Print head firing
is not straight
Clogged Print head
Print head problems
Defective Print head Cable
Defective Print head Control
Board
Perform Ink Priming
• Replace defective Print head
• Replace defective Print head Cable
• Replace defective Print head Control
Board
• Adjust the Print head Voltage
Ink Starvation
o Insufficient Negative
Pressure value
o Print head nozzles are not
working well
o Insufficient ink flowing from
the Disc Filter to the Print
head because of clogged
disk filter
Increase the Negative Pressure value
from
-2.2KPa to -2.6KPa
Perform Test Print to check if all the Print
head nozzles are working well, flush and
ink prime as needed
Replace Filter
Cannot achieve
correct negative
pressure
Negative
pressure keeps
on changing from
time to time
o Presence of ink in the Ink
Protect Tank
o Defective Negative Pressure
Regulator
o Defective Pressure Gauge
o Defective Air Pump
o Possible leak in the vacuum
line system (negative
pressure line)
Remove or purge any presence of ink in
the Ink Protect Tank
Replace defective Negative Pressure
Regulator
Replace Pressure Gauge
Replace Air Pump
Fix any air leak from the vacuum line
system.
Replace Air Fittings if necessary
Air Pump is not
working
Ink Pumps are
not working
o Presence of ink in the Ink
Protect Tank
o Ink Tank Sensor might not be
working that is why ink is
overflowing to the Ink Protect
Tank
Fix/replace the Ink Tank Sensor
Remove the ink from the Ink Protect Tank
using the Syringe from the Ink Outlet
Tube vent
All Ink Pumps
are not working
o Presence of ink in the Ink
Protect Tank
o Defective / Out of Position
Ink Protect Level Sensor
Remove or purge any presence of ink in
the Ink Protect Tank
Replace/Fix Ink Protect Level Sensor by
opening the Ink Protect Tank
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