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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
Preparation
Follow the appropriate printer disassembly procedures for removing printer housings and accessing the print bar.
Note: When removing the encoder strip,
pay close attention
to the location of the encoder strip as it must feed
through the optical encoder located on the back of the carriage. The encoder strip should be replaced if the strip
is damaged (badly scratched or torn), or contaminated with ink which can cause erratic print operation.
Removal
1. Move the carriage to the center of the carriage path. This may require rotating the bottom gear on the service
station to release the carriage lock.
2. Press the encoder strip spring (on the right end of the carriage bar) toward the carriage.
3. Lift the encoder strip off of the flange at the left end of the carriage bar, and then lift it free from the flange on
the spring (right end).
4. Pull the encoder strip out of the carriage assembly.
Replacement
1. Move the carriage near the right end of the carriage path, so that the right pulley is visible.
2. Insert either end of the encoder strip through the encoder strip spring and in front of the pulley.
3. Guide the end of the strip below the curved flex circuit, and into the back of the carriage (see Figure 3-9).
Flex circuit
Encoder strip
Flex clamp
Figure 3-9. Front of the print bar showing the flex circuit and the encoder strip behind the carriage
4. Feed the strip through the encoder on the rear of the carriage.
Note: If the encoder strip is
installed correctly
, the encoder strip will NOT make any contact with the
carriage assembly or flex cable. If the encoder strip touches any other component, it is
installed incorrectly
and must be removed and reinstalled again.