Samsung SF-330 Series, Service Manual, Page: 23 / 24

Page 23
SF-330 Series Graphic Print Bar
Service Guide
Samsung Electronics Confidential

Copyright Samsung Electronics Company 2002
SF-330 Series Graphic Print Bar Service Guide
Revision 1.0; 23-Jul-02
4.2 Troubleshooting Flowchart
Does carriage
move smoothly?
19V driver
electronics okay?
Does carriage
move when
printing?
Check for failure messages. See
H/W section for measuring 19V
carriage drive voltage.
Yes
Yes
No
No
Carriage
moving?
Yes
No
Check / replace encoder strip or
replace carriage / flex assembly.
Carriage
moving?
Yes
No
Replace carriage
motor.
Return to product electrical
troubleshooting section.
Yes
Print defect, fuzzy
or smeared?
Yes
No
Is print missing,
white lines?
Yes
No
Print cartridge life
end early?
Yes
No
Try these steps sequentially. If
movement is not smooth after one
step, proceed to the next step
1. Move carriage back and forth with
power off. If movement is not
smooth, check / replace belt,
gears, or carriage assembly
OR
2. Check encoder for contamination
or damage; replace if necessary.
OR
3. Replace carriage / flex assembly
Yes
No
Troubleshoot product
electronics.
End
End
End
Troubleshoot
product driver
electronics.
Start
See section 2.2.2
and 2.2.3.
See section
2.1.2.
See section
2.1.1
Carriage moves
smoothly?
Note: In this flowchart, the term product refers to the
host printing device (e.g. FAX), not the print bar, and
movement refers to back and forth movement of the
carriage assembly.
Replace
print
cartridge.
No
Figure 4-2. Troubleshooting flowchart
4.3 General Media Specifications