GRAPHTEC SK200-09, Service Manual

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SK200-UM-251-9370 8-25
8. DISASSEMBLING AND ADJUSTING THE MECHANICAL PARTS
8.18 Adjusting the CIS Sensor Height
Adjusting the CIS sensor height
(1) Detach the board base chassis assembly (see Section 8.12).
(2) Close the top assembly, and then insert the plastic shim under the CIS sensor unit assembly.
(3) Adjust the gap to 0.25 mm.
(4) Confirm that the 0.2 mm shim passes through the gap and that the 0.3 mm shim dose not pass through
the gap.
0.2 mm shim or 0.3 mm shim
Insert the shims in the areas indicated by the red circles to adjust the gap between the CIS
sensor and the feed roller.
(5) Loosen the two M3L4 binding screws holding the CIS sensor unit assembly.
M3L4 binding head screw
Height adjustment screw
Position lock screw
(6) Adjust the gap using the height adjustment screw.
(7) Tighten the two M3L4 binding screws holding the CIS sensor unit assembly after adjustment has been
completed.
(8) Tighten the two position lock screws.
(9) Reassemble the board base chassis assembly (see Section 8.12).
(10) Detach the left and right side covers (see Sections 8.2 and 8.3).