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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
with the print cartridge out of the service station for a long period of time allowing the nozzle plate to dry
out. If the print out has small white lines (caused by either a missing nozzle or a clogged or misdirected nozzle)
clean the print head nozzle by scraping the excessive ink off and then reinstall the cartridge into the product.
If the cartridge servicing routine does not clear the clogged nozzles, the cartridge must be replaced.
4. The original print cartridge package may have been opened. Print cartridges have a longer life sealed in their
original package. This is usually true if the cartridge is exposed to higher than normal temperatures.
5. The print cartridge may be faulty. However, frequent occurrences of faulty print cartridges may indicate
problems with service station mechanism.
6. The service station may be faulty, which can lead to several types of problems including ink crusting, plugging
of nozzles, or air forced into the nozzles. Replace the wiper/cap assembly (see section 3.3).
If replacing the cap and wiper do not resolve the cartridge problem, replace the entire service station assembly.
3 Part Replacement
3.1 Carriage Motor
Preparation
Follow the appropriate printer disassembly procedures for removing printer housings and accessing the print bar.
Removal
1. Disconnect the carriage motor cable from the motor.
2. Place the print bar so the front is facing you (carriage and service station on the left with gear, pulley and belts
clearly visible).
3. Move the carriage to the center of the carriage path. This may require rotating the large gear on the bottom of
the service station to release the carriage lock.
4. While supporting the carriage motor, remove the two T8 screws that secure the carriage motor to the carriage
bar (see Figure 3-1 on next page).
5. Carefully remove the carriage motor.
6. Follow the above steps in reverse to replace the part.
Replacement Note: Align the two tapped holes in the carriage motor with the openings in the print bar
(see Figure 3-1).
