Epson B 1100 Service Manual

							WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C
Disassembly And Assembly Removing the Housings 71
Confidential
4.2.6  Decoration Plate Left/Right
1.Remove the Rear Housing. (p.68)
2.Remove the Front Decoration Plate Left/Right. (p.68)
3. Release the three hooks on the front of the Decoration Plate Right and lift the plate 
a little to release the tab and the four guide pins on the upper side, then remove the 
Decoration Plate Right.
4. In the same way, remove the Decoration Plate Left.
Figure 4-13. Removing the Decoration Plate Left/Right
Decoration Plate 
Right
Hook (x3)
Tab
Guide pin (x4)
When installing the Decoration Plate L/R, first align the hooks of 
the Decoration Plate L/R (two each) with the ribs of the Lower 
Housing (two each on the left/right), and then align the tab inside 
the Decotrative Plate L/R (one each) with the positioning hole on the 
Upper Housing (one each on the left/right).
Figure 4-14. Reinstalling the Decoration Plate Left/Right
Tab
Hooks and Ribs
Positioning hole 
						

							WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C
Disassembly And Assembly Removing the Housings 72
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4.2.7  Upper Housing / Printer Cover
1.Remove the Decoration Plate Left/Right. (p.71)
2.Remove the Panel Unit. (p.69)
3. Remove the seven C.B.P. M3 x 10 screws that secure the Upper Housing.
4. Remove the Upper Housing while pulling out the Panel FFC through the cutout of 
the Upper Housing.
Figure 4-15. Remove the Upper Housing 
1) C.B.P. M3x10
(6±1 kgf.cm)
6
1) C.B.P. M3x10
(6±1 kgf.cm)
7
1) C.B.P. M3x10
(6±1 kgf.cm)
5
2
1) C.B.P. M3x10
(6±1 kgf.cm)
1
3
1) C.B.P. M3x10
(6±1 kgf.cm)
4
Upper Housing
Route the Panel FFC correctly as shown in Figure 4-12. 
Install the Upper Housing so that the Grounding Plate properly 
protrudes through the cutout of the Upper Housing.
Figure 4-16. Routing the Panel FFC
Tighten the screws in the order shown in Figure 4-15.




After replacing the following parts, be sure to apply G-74 grease to the 
area specified for each part.
Upper Housing: See Figure 6-14 on page 158.
Upper Housing
Grounding Plate 
						

							WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C
Disassembly And Assembly Removing the Housings 73
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REMOVING THE PRINTER COVER
1.Remove the Upper Housing / Printer Cover. (p.72)
2. Remove the two C.B.P. M3 x 8 screws that secure Printer Cover Holder Left/
Right.
Figure 4-17. Removing the Printer Cover Holder Left/Right3. Remove the Printer Cover Holder Right following the steps below.
3-1. With the Printer Cover open, put the Upper Housing with the rear side up.
3-2. Slide the Printer Cover Holder Right in the direction of the arrow while 
lifting it, and remove the Printer Cover Holder Right from the Upper 
Housing.
Figure 4-18. Removing the Printer Cover
4. While holding the Printer Cover, remove the Printer Cover Holder Left in the same 
manner as Step 3-2, and remove the Printer Cover from the Upper Housing.
Insert the tabs (two each on the left/right) shown in Figure 4-17 into 
the holes on the Upper Housing.
TabsTabs
4) C.B.P. M3x8
(6±1 kgf.cm)4) C.B.P. M3x8
(6±1 kgf.cm)
Upper Housing
Printer Cover Holder RightPrinter Cover Holder Left 
Be careful not to damage the surface in step 3 and later.
When performing the following steps, be careful not to damage the 
tabs of the Printer Cover Holder Right.
Printer Cover
Upper Housing
TabPrinter Cover 
Holder Right 
						

							WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C
Disassembly And Assembly Removing the Housings 74
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4.2.8  Upper Housing Support Assy
1.Remove the Upper Housing / Printer Cover. (p.72)
2. Remove the two C.B.S. M3 x 6 screws and two C.B.P. M3 x 10 screws that secure 
the Upper Housing Support Assy, and remove the Upper Housing Support Assy.
Figure 4-19. Removing the Upper Housing Support Assy




After replacing the following parts, be sure to apply G-26 grease to the 
area specified for each part.
Printer Cover Holder Left: Chapter 6 See Figure 6-13 (p.158).
Printer Cover Holder Right: Chapter 6 See Figure 6-13 (p.158).
Secure the Grounding Plate with one of the C.B.S. M3 x 6 screws 
together with the Upper Housing as shown below.
1) C.B.P. M3x10
(6±1 kgf.cm)1) C.B.P. M3x10
(6±1 kgf.cm)
Upper Housing Support Assy
2) C.B.S. M3x6
(6±1 kgf.cm) 
						

							WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C
Disassembly And Assembly Removing the Boards 75
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4.3  Removing the Boards
4.3.1  Board Assy (Main Board/Power Supply Board)
1.Remove the Upper Housing / Printer Cover. (p.72)
2. Remove the seven screws (four C.B.S. M3 x 6, two C.B.S. (P2) M3 x 8, and one 
C.B.S. M3 x 8) that secure the Board Assy.
Figure 4-20. Removing the Board Assy (1)3. Disconnect all the cables and FFCs connected on the Main Board from the near 
side one by one.
Figure 4-21. Connector Layout of the Main Board (130 Digit Side)
Tighten the screws in the order shown in Figure 4-20.
Board Assy
2
56
15) C.B.S. (P2) M3x8
(6±1 kgf.cm)
134
7
5) C.B.S. M3x8
(6±1 kgf.cm)
2) C.B.S. M3x6
(6±1 kgf.cm)
No.ConnectorNo.Connector
CN4 Panel Bard, Cover Open Sensor CN22 CSIC
CN5Relay FFC (for sensor)CN115CR Motor
CN9 CR Encoder Sensor, PW Sensor CN116 PF Motor
CN11CR Relay BoardCN117Pump Motor
CN12 CR Relay Board CN118 APG Motor
CN13CR Relay BoardCN119ASF Motor
CN116
CN5
CN4
CN12
CN118CN117
CN13
CN19
CN11
CN15
CN22
CN9 
						

							WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C
Disassembly And Assembly Removing the Boards 76
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4. Pull out the Board Assy from the Printer.
Figure 4-22. Removing the Board Assy (2)REMOVING THE MAIN BOARD
1.Remove the Board Assy (Main Board/Power Supply Board). (p.75)
2. Disconnect the Power Board cable from connector CN60 on the Main Board.
3. Remove the four C.B.S. M3 x 6 screws and one C.P. M3 x 4 screw that secure the 
Main Board and remove the Main Board from the Board Assy.
Figure 4-25. Removing the Main Board
Confirm that the FFCs do not cross each other first, then 
connect the FFCs and the cables to the Main Board while 
paying attention to the edge of the Shield Plate.
Take care not to place the Board Assy onto the three Ground 
Plates.
Figure 4-23. Reinstalling the Board Assy
Board Assy
Grounding Plates
When disconnecting the Power Board cable, be sure to unlock 
CN60 on the Main Board.
Figure 4-24. Handling the Power Board cable (CN60)
LockUnlock
1
23
4
CN60
Main Board
2) C.B.S. M3x6
(6±1 kgf.cm)
14) C.P. M3x4 
(4±1 kgf.cm)5 
						

							WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C
Disassembly And Assembly Removing the Boards 77
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REMOVING THE POWER BOARD
1.Remove the Board Assy (Main Board/Power Supply Board). (p.75)
2. Disconnect the Power Board cable from connector CN60 on the Main Board. (p.76)
3. Remove the four C.B.S. M3 x 6 screws that secure the Power Board and remove 
the Power Board from the Board Assy.
Figure 4-27. Removing the Power Board
When disconnecting the Power Board cable, be sure to unlock 
CN60 on the Main Board.
Figure 4-26. Handling the Power Board cable (CN60)
Tighten the screws in the order shown in Figure 4-25 and Figure 
4-27.
LockUnlock
Power Board
2) C.B.S. M3x6
(6±1 kgf.cm)
1
23
4




After replacing or removing the Main Board and the Power Board, 
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 78
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4.4  Disassembling the Printer Mechanism
4.4.1  APG Assy
1.Remove the Upper Housing / Printer Cover. (p.72)
2. Disconnect the APG Motor connector cable from connector CN118 (red) on the 
Main Board.
3. Peel off the acetate tape, and remove the APG Motor cable from the ASF Assy.
4. Disconnect the cables from the two APG Sensor connectors.
Figure 4-28. Disconnecting the Cables5. Remove the three C.B.S. M3 x 6 screws that secure the APG Assy, and remove the 
APG Assy from the Main Frame.
Figure 4-29. Removing the APG Assy
Referring to Figure 4-28, correctly route the APG connector cable.
APG Assy
APG Motor
APG Sensor 
connectors
CN118
Hook the APG Motor 
cable on the two tabs 
of the ASF Assy.
Acetate tape
3
1
2
2) C.B.S. M3x6
(8±1 kgf.cm) 
						

							WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C
Disassembly And Assembly Disassembling the Printer Mechanism 79
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4.4.2  CR Scale
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. Pull the right end of the CR Scale in the direction of the arrow, and remove the CR 
Scale from the tab on the Right CR Shaft Mounting Plate.
4. Pull out the right end of the CR Scale towards the left direction from the rear of the 
Carriage Unit.
Figure 4-31. Pulling out the CR Scale
Align the phase of the APG Assy in the following procedure.
1.Align the delta marks of Spur Gear 16 and Combination Gear 
22, 28.8, 32.4.
2. At the position where the tab can be identified through the 
notch of the PG Frame, align the delta marks of Spur Gear 
16 and PG Cam (Left).
Figure 4-30. Phase Aligning
Tighten the screws in the order shown in Figure 4-29.
Delta Marks
Spur Gear 16 Combination Gear, 
22, 28.8, 32.4
Delta Marks Tab
Spur Gear 16 PG Cam (Left)
When performing the following procedure, take care to prevent 
both ends of the CR Scale from being broken.
Step 3Step 4
Carriage UnitRight CR Shaft Mounting Plate
CR Scale
Hook 
						

							WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C
Disassembly And Assembly Disassembling the Printer Mechanism 80
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5. Remove the coil section of Torsion Spring 24.7 from the tab on the Left CR Shaft 
Mounting Plate with tweezers.
Figure 4-32. Removing the Torsion Spring 24.7 (1)
6. Remove Torsion Spring 24.7 from the CR Scale by the following procedure:
6-1. Stand the coil section.
6-2. Lower the coil section downwards to remove Foot 1 from the notch on the 
Left CR Shaft Mounting Plate.
6-3. Turn the coil section counterclockwise.
6-4. Remove Torsion Spring 24.7 from the hole on the CR Scale.
Figure 4-33. Removing the Torsion Spring 24.7 (2)7. Turn the CR Scale 90º, and remove it from the tab on the Left CR Shaft Mounting 
Plate.
Figure 4-34. Removing the CR Scale
Left CR Shaft 
Mounting Plate
Torsion Spring 24.7
Tab
Step 6-1
Step 6-2
Step 6-3Foot 1
Notch
Tab