Epson B 1100 Service Manual

							WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C
Disassembly And Assembly Disassembling the Printer Mechanism 81
Confidential
4.4.3  Printhead / CSIC Assy
1.Remove the Upper Housing / Printer Cover. (p.72)
2. Release the Carriage Lock, and move the Carriage Unit to the center. 
(Refer to 4.1.5 Locking/Releasing the Carriage (p.65).)
3. Open the Ink Cartridge Cover.
4. Cut the Hinge, Cover Cartridge with a nipper or a similar tool and remove the 
upper part of the Hinge, Cover Cartridge.
5. Remove the Ink Cartridge Cover from the Carriage Unit.
6. Disengage the hook from the lower part of the Hinge, Cover Cartridge using a pair 
of Tweezers and remove the lower part of the Hinge, Cover Cartridge.
Figure 4-38. Removing the Hinge, Cover Cartridge
Pass the CR Scale through the slot on the CR Encoder.
Figure 4-35. Reinstalling the CR Scale (1)
Set the left end of the CR Scale with the black mark facing 
upwards.
Figure 4-36. Reinstalling the CR Scale (2)
Place the right end of the CR Scale correctly so that it is not 
hooked onto the Right CR Shaft Mounting Plate.
Figure 4-37. Reinstalling the CR Scale (3)
CR Encoder
CR Scale
CR Scale Black Mark
CR Scale
Hooked Portion OK
NG
So as not to damage the FFC, do not use any tools with the sharp 
ends when removing the Cable Holder.
Hinge, Cover Cartridge 
lower part
Hook
Ink Cartridge Cover
Hinge, Cover 
Cartridge upper part 
						

							WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C
Disassembly And Assembly Disassembling the Printer Mechanism 82
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7. Release the hook and two tabs of the Cable Holder, and remove the Cable Holder.
Figure 4-41. Removing the CSIC Assy (1)	

The Hinge, Cover Cartridge can not be removed without damaging 
it. Whenever replacing the Printhead, the Hinge, Cover Cartridge 
must be also replaced with a new one. 
Figure 4-39. Hinge, Cover Cartridge
Engage the two dowels of the Ink Cartridge Cover with the 
installation holes on the Carriage Unit and Hinge, Cover Cartridge 
(one each).
Figure 4-40. Reinstalling the Ink Cartridge Cover
Hinge, Cover 
Cartridge
Dowels
Ink Cartridge Cover
Installation holes
Cable Holder
Hook
Tabs 
						

							WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C
Disassembly And Assembly Disassembling the Printer Mechanism 83
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8. Disconnect all the FFCs connected on the CR Relay Board.
CN1: Printhead
CN2: Printhead
CN3: Main Board
CN4: Main Board
Figure 4-42. Removing the CSIC Assy (2)
9. Remove the C.B.S. M3 x 6 screw that secure the CR Relay Board, and remove the 
CR Relay Board from the Carriage Unit.
Figure 4-43. Removing the CSIC Assy (3)10. Release the two hooks; located on both the left side and the right side of the CSIC 
Assy, and remove the CSIC Assy upward.
Figure 4-44. Removing the CSIC Assy (4)
CN3
CN1
CN2
CN4
CR Relay Board
2) C.B.S. M3x6
(6±1 kgf.cm)
HookHook
CSIC Assy HookHook
CSIC Assy  
						

							WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C
Disassembly And Assembly Disassembling the Printer Mechanism 84
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11. Disconnect the CSIC FFC from the connector on the CSIC Assy, and remove the 
CSIC Assy from the Carriage Unit.
Figure 4-45. Removing the CSIC Assy (5)
12. Remove the three C.B.P. M2.6 x 8 screws that secure the Printhead using the 
Phillips Screw Driver, No.1, and vertically lift the Printhead to remove it.
Figure 4-46. Removing the Printhead13. Peel off the Head FFC from the Printhead.
14. Remove the two Head FFCs from the connectors of the Printhead.
Figure 4-47. Remove the Head FFC
CSIC Assy CSIC FFC
21
3
Printhead
7) C.B.P. M2.6x8
(3±0.5 kgf.cm)
Confirm that the pad is attached at the position in Figure 4-48.
Figure 4-48. Attaching the Pad
connectors
Head FFCs
Printhead Double-sided tape
Pad 
						

							WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C
Disassembly And Assembly Disassembling the Printer Mechanism 85
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The Printhead must be installed with its positioning holes 
aligned with the guide pins of the Carriage Unit.
Figure 4-49. Reinstalling the Printhead (1)
Route the CSIC FFC through the groove of the Carriage Unit.
Figure 4-50. Reinstalling the CSIC FFC
Guide pins
Positioning holes
CSIC FFC
Groove
Tighten the screws in the order shown in Figure 4-46




After replacing or removing the Printhead, always make the required 
adjustments referring to the following.
“Chapter 5 Adjustment (p.128)” 
						

							WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C
Disassembly And Assembly Disassembling the Printer Mechanism 86
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4.4.4  Lower Housing / Printer Mechanism
1.Remove the Upper Housing / Printer Cover. (p.72)
2. Grip both ends of the Waste Ink Tube Fasteners with your fingers, slide them in 
the direction of the arrows, and pull out the Waste Ink Tube from the Joint Tube.
3. Remove the C.B.P. M3 x 12 screw and the C.B.S. (P2) M3 x 10 screw that secure 
the Shield Plate Holder, and remove the Shield Plate Holder.
4. Remove the five screws (four C.B.P. M3 x 10 screws and one C.B.S. (P2) M3 x 10 
screw) secure the Printer Mechanism.
Figure 4-51. Screws that Secure the Printer Mechanism4
2
1
Step 2
Waste Ink Tube
Fastener
Joint Tube
3
1) C.B.P. M3x10
(6±1 kgf.cm)
Printer Mechanism
1) C.B.P. M3x10
(6±1 kgf.cm)
5
3) C.B.S. (P2) M3x10
(6±1 kgf.cm)
Left RearShield Plate Holder
18) C.B.P. 3x12
(6±1 kgf.cm)
3) C.B.S. (P2) M3x10
(6±1 kgf.cm)
Right Rear
A
BStep 3
Lower Housing 
						

							WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C
Disassembly And Assembly Disassembling the Printer Mechanism 87
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5. Lift the Printer Mechanism grasping it by the holding positions with your hands, 
and remove it from the Lower Housing.
When performing the following step, make sure to grasp the Printer 
Mechanism by the specified positions shown below. Otherwise, the 
frames may become deformed.
Figure 4-52. Handling the Printer Mechanism
Install the Printer Mechanism to the Lower Housing as follows. 
(refer to Figure 4-51)
1. Align the two guide pins with the positioning holes as shown 
below.
Figure 4-53. Reinstalling the Printer Mechanism
Holding Positions
Right RearLeft Rear
Positioning hole
and guide pin
Positioning hole
and guide pin
2. Place the Printer Mechanism on the Lower Housing and 
secure the Shield Plate Holder and the Printer Mechanism 
with the screw (A).
3. Verify the Printer Mechanism and Lower Housing are 
tightly engaged (no rattling), and then secure the Shield Plate 
Holder to the Lower Housing.
4. Secure the Printer Mechanism and Lower Housing with 
screws (x5). (Tighten the screws in the order shown in Figure 
4-51)
5. Secure the electrode cable to the Front Paper Guide with the 
screw.
Route the Ink Tube and the Waste Ink Tube through the three 
grooves of the Lower Housing.
Figure 4-54. Reinstalling the Waste Ink Tube
GrooveWaste Ink Tube
Ink Tube 
						

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Disassembly And Assembly Disassembling the Printer Mechanism 88
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4.4.5  Carriage Shaft / Carriage Unit
1.Remove the Printhead / CSIC Assy. (p.81)
2.Remove the CR Scale. (p.79)
3.Remove the APG Assy. (p.78)
4. Rotate the PG Cam (Right) to adjust its positions other than PG++ downside.
Figure 4-57. Adjusting the PG Cam
Attach the Label, Ink Position (parts code: 1510078) at the 
position in the figure below.
Figure 4-55. Attaching the Label, Ink Position




After replacing the Printer Mechanism, always make the required 
adjustments referring to the following.
“Chapter 5 Adjustment (p.128)”
Label, Ink Position
25 mm
1mm ± 1mm
	

When only removing the Carriage Shaft, you do not need to 
perform 5.3.2 PG Adjustment (p143). In that case, mark the 
position of the rib on the Parallelism Adjust Bushing (Left/Right) 
before removing them, and make sure to align the markings with 
the ribs when installing them.
Figure 4-56. Marking Position
Parallelism Adjust Bushing (Left)
Mark the position of the rib
Parallelism Adjust Bushing (Right)
Mark the position of the rib
PG Cam (Right) 
						

							WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C
Disassembly And Assembly Disassembling the Printer Mechanism 89
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5. Remove the two C.B.S. M3 x 6 screws that secure the Frame Support Plate (Left), 
and remove it.
Figure 4-58. Removing the Left Frame Support Plate6. Remove the foot of Left PG Torsion Spring from tab A, and remove the coil 
section from tab B to remove Left PG Torsion Spring from the Main Frame.
Figure 4-59. Removing the Left PG Torsion Spring
7. Remove the foot of Right PG Torsion Spring from tab A, and remove the coil 
section from tab B to remove the Right PG Torsion Spring from the Main Frame.
Figure 4-60. Removing the Right PG Torsion Spring
Insert the Left Frame Support Plate into the notch on the Main 
Frame. See Figure 4-58 (p.89)
Align the two tabs on the Main Frame and the tab on the Paper 
EJ Frame Assy with the three positioning holes on the Frame 
Support Plate (Left). See Figure 4-58 (p.89)

Align the tab (rear side) of the Left Frame Support Plate with the 
outside of the Left CR Shaft Mounting Plate. See Figure 4-58 
(p.89)
Tighten the screws in the order shown in Figure 4-58
1
2
2) C.B.S. M3x6
(8±1 kgf.cm)
Tab
Tabs
Left Frame Support Plate
Paper EJ Frame AssyNotch
Left PG Torsion Spring
Tab A
Tab B
Right PG Torsion SpringTab A
Tab B 
						

							WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C
Disassembly And Assembly Disassembling the Printer Mechanism 90
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8. Remove CR Shaft Mounting Plate Fixed Spring from the tab and notch on the 
Main Frame, and pull out the spring in the direction of the arrow.
Figure 4-62. Removing CR Shaft Mounting Plate Fixed Spring9. Remove the extension spring for the Driven Pulley Holder from the Main Frame 
and the tab on the Drive Pulley Holder with needle-nose pliers.
Figure 4-63. Removing the Extension Spring for the Driven Pulley Holder
10. Slide Driven Pulley Holder to the right end of the notch on the Main Frame, and 
Remove the Driven Pulley Holder toward you.
Figure 4-64. Removing the Driven Pulley Holder
Place the feet of Left PG Torsion Spring and Right PG Torsion 
Spring on the Carriage Shaft.
Figure 4-61. Reinstalling PG Torsion Springs
Insert the foot of CR Shaft Mounting Plate Fixed Spring into the 
notch on the Main Frame (rear side). (See Figure 4-62 (p.90))
Foot
Left Side
Foot
Right Side
Tab
CR Shaft Mounting Plate Fixed Spring
Notch
Notch (rear side)
Tabs
Extension spring for the 
Driven Pulley HolderDriven Pulley Holder
Driven Pulley Driven Pulley Holder