Epson Stylus Photo R290, Service Manual, Page: 86 / 125

EPSON Stylus Photo R280/R285/R290 Revision B
Chapter 4 Disassembly/Assembly 4.4.13 CR Unit (Disassembling the Printer Mechanism) 86
4.4.13 CR Unit
† Parts/Components need to be removed in advance
Printer Cover / Paper Support Assy / Upper Housing / Main Board Unit / Panel Assy /
Cover Open Sensor / Printer Mechanism / APG Unit
† Removal procedure
1. Remove the Cable Holder Frame and Front Frame. (p.81)
2. Disengage the upper end of the Spring (1) from the slit, and remove the
Spring (1).
3. Loosen the screw ( ), and turn the Parallelism Bushing L clockwise to the
maximum.
Figure 4-88. Removing the CR Unit (1)
4. Disengage the end of the Spring (2) from the hook, and the other end from the
slit of the CR shaft, and remove the Spring (2).
5. Remove the washer by expanding the gap between the washer and the Right
PG Cam using a pair of Tweezers, and remove the Right PG Cam.
Figure 4-89. Removing the CR unit (2)
6. Hold the CR Unit from the bottom and lift up the CR Shaft, release from the
bushing in the (1) (2) order, and remove the CR Unit with the Shaft from the
Main Frame.
Figure 4-90. Removing the CR Unit (3)
C A U T I O N
Before turning the Parallelism Bushing L, mark the scale position
of the Parallelism Bushing with a marker. And taking extra care
not to damage the Gear with the rib, pull it toward the front.
Spring (1)
Parallelism Bushing L
Slit
[Left Side]
C A U T I O N
If the Print Head has not been removed, be extremely careful not
to touch the nozzle surface of the Print Head.
CR Shaft
Washer
Right PG Cam
Spring (2)
Removal Direction
Hook
[Right Side]
2
CR Shaft
CR Unit
1
Bushing
Bushing