Lexmark 2070 Color Jetprinter Service Manual - Page 53
Small Feed Roll Shaft, Rollers & Paper Flap Removal, Star Roller Removal, System Board Removal
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4090-001 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. Boss Paper Guide Feature Due to occasional paper buckling at the bottom edge of the page, a new feature has been added to the paper guide to stabilize the small feed roll shaft. Install the new style paper guide and match the small feed roll assembly. The new small feed roll FRU is cut out in the paper flap allowing the new feature to contact the small feed roll shaft. Star Roller Removal 1. Remove the front cover. 2. Remove the two screws from the star roller assembly and remove the assembly. System Board Removal 1. Remove the front cover. 2. Unlock the two 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 two connectors prior to installing the board. Repair Information 4-21