Lexmark 2050 Color Jetprinter Service Manual - Page 53

Small Feed Roll Shaft, Rollers & Paper Flap Removal, Star Roller Removal, System Board Removal

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Small Feed Roll Shaft, Rollers & Paper Flap Removal 1. Remove the front cover. 2. Remove the rear cover. 3. Remove the carrier frame assembly. 4. Spread the left and right side frames apart far enough to remove the small feed roll shaft assembly. Star Roller Removal 1. Remove the front cover. 2. Remove the four screws from the star roller assembly and remove the assembly. System Board Removal 1. Remove the front cover. 2. Unlock the four printhead cable connectors and disconnect the printhead cables from the system board. 3. Disconnect the other cables from the system board. 4. Gently release the tension on the encoder strip by flexing the encoder strip tensioner and remove the encoder strip from the left side only. 5. Remove the three screws securing the system board to the carrier frame and remove the system board. Note the routing of the paper feed motor cable. Note: The head to head and bidirectional printing alignments will be reset to factory defaults. The user, through the Printer Control program, is directed to perform these alignments. When reinstalling the system board, it is easier to insert the printhead cables in the four connectors prior to installing the board. Repair Information 4-21

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Repair Information 4-21
Small Feed Roll Shaft, Rollers & Paper Flap Removal
1. Remove the front cover.
2. Remove the rear cover.
3. Remove the carrier frame assembly.
4. Spread the left and right side frames apart far enough to
remove the small feed roll shaft assembly.
Star Roller Removal
1. Remove the front cover.
2. Remove the four screws from the star roller assembly and
remove the assembly.
System Board Removal
1. Remove the front cover.
2. Unlock the four printhead cable connectors and disconnect the
printhead cables from the system board.
3. Disconnect the other cables from the system board.
4. Gently release the tension on the encoder strip by flexing the
encoder strip tensioner and remove the encoder strip from the
left side only.
5. Remove the three screws securing the system board to the
carrier frame and remove the system board. Note the routing of
the paper feed motor cable.
Note:
The head to head and bidirectional printing alignments will be
reset to factory defaults. The user, through the Printer Control
program, is directed to perform these alignments. When reinstalling
the system board, it is easier to insert the printhead cables in the
four connectors prior to installing the board.