Epson DFX-8500 - Impact Printer, Service Manual

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DISASSEMBLY AND ASSEMBLY
Rev. B
3-43
3.2.6.10 Platen Removal
Step 1: Remove the paper bail assembly. (Refer to Section 3.2.6.7.)
Step 2: Remove the upper paper guide. (Refer to Section 3.2.6.8.)
Step 3: Remove the four hexagon socket screws securing the platen to the platen holders. Then remove
the platen with the lower paper guide composed of 3 parts in it.
Step 4: Slide the 3 parts of the lower paper guide to release the notches and remove them one by one
from the platen.
H e x a g o n S o c k e t S c r e w
P l a t e n
P l a t e n H o l d e r ( L e f t )
P l a t e n H o l d e r ( R i g h t )
L o w e r P a p e r G u i d e
R e a r
Figure 3-62. Platen Removal
P l a t e n
P l a t e n H o l d e r
P o s i t i o n n i n g T a b
0 . 0 3 m m
T h i c k n e s s G a u g e
F r o n t
R e a r
N o t h r o u g h
Figure 3-63. Platen Positioning
ASSEMBLING POINT
•
When you attach the 3 parts of the lower paper guide to the platen, start with the one at the right end
and work toward the left.
•
When you mount the platen to the platen holders, space between the platen and positioning tab on
the both sides must be less than 0.03mm. (Refer to Figure 3-63.)
ADJUSTMENT REQUIRED
When you install the platen, perform the following adjustments:
•
Carriage guide shaft parallelism adjustment (described in Section 4.1.5 and Section 4.1.6)
•
Platen angle (right angle) adjustment (described in Section 4.1.6)
•
Platen gap motor value (platen gap) adjustment (described in Section 4.1.7)