Epson Stylus Pro 4900/Epson Stylus Pro 4910 Revision A
DISASSEMBLY & ASSEMBLY Disassembly and Assembly Procedure 171
Confidential
3.4.4.3 CR Scale
1. Remove the Front Cover. (p142)
2. Remove the Right Upper Cover. (p138)
3. Remove the Control Panel Cover. (p136)
4. Remove the Right Cover. (p139)
5. Remove the Left Cover. (p137)
6. Unlock the CR Unit, and move the CR Unit to the left side. (p124)
7. Disengage the CR scale spring from the hook on the left side of the main frame.
8. Remove the CR scale spring from the CR Scale.
9. Disengage the CR Scale from the hook on the right side of the main frame.
10. Pull out the CR Scale from the CR Unit.
Figure 3-81. Removing the CR Scale
C A U T I O N
Take extreme care to avoid soiling the CR Scale surfaces with ink
or by touching them with bare hands. In addition, be careful not to
scratch the surface on which patterns for detection are printed by
bumping the scale against frames of the main unit. The above
precautions should always be followed, or a malfunction of the CR
Unit may occur.
A D J U S T M E N T
R E Q U I R E D
Be sure to refer to Chapter 4 “Adjustment” (see p277) and perform
specified adjustments after replacing the CR Scale.
<Adjustment items>
1. CR Encoder and Scale Check
2. CR Speed Initialize
CR scale spring
CR Scale
Step 8
Hook
Hook
CR Scale
Step 9
CR Scale
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