Epson SEIJ98006 Paper Gap Adjustment, Right and Left Parallelism Adjustment Bushing Locations

EPSON Stylus Color 900 Revision C

5.2.10 Paper Gap Adjustment

Paper Gap Adjustment is performed to provide a proper gap between the printhead surface and paper surface. It must be made under the following conditions. (This adjustment can not be made without removing the upper case.)

1.Any of the following operations which involve carriage guide shaft removal has been performed.

-Replacing the carriage guide shaft

-Replacing the felt oil pad at the back of the carriage (when supplying O-8 oil)

-Replacing the carriage unit

2.Right/left parallelism adjustment bushing has been moved, removed or replaced.

1.Set the right and left parallelism adjustment bushings to the middle position of the corresponding adjustable range. Make sure the screws fixing the parallelism adjustment bushings are loosened for this operation.

2.Install dummy cartridges (empty cartridges) and close the both clamps.

3.Set the PG lever (blue) to the rear (PG = wider).

4.If the carriage is locked, release the carriage lock from the back of the printer mechanism.

5.Move the carriage to the center and place the thickness gauge (Specifications: 1.14 mm, 5 cm in length) over the right end of the Front Paper Guide’s top surface.

F r o n t P a p e r G u

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P a r a lle lis m A d ju s t m e n t

P a r a lle lis m A d ju s t m e n t

B u s h in g )B u s h in g ( R ig h tFigure) 5-53. Setting Position of the Thickness Gauge C e n t e r v a lu e in t h e

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Figure 5-52.

Right and Left Parallelism Adjustment Bushing Locations

6.Bring the PG lever (blue) back to the front (PG = narrower).

7.By pulling the timing belt manually, move the carriage to the position where the thickness gauge is set.

NOTE:

Do not push the carriage unit directly to move it. Doing so presses the carriage down and the paper gap adjustment is not correctly done.

8.When the printhead is in contact with the thickness gauge, check if the thickness gauge moves.

Adjustment Adjustments 158