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 101
Confidential
4.4.8  Retard Roller Assy
1.Remove the ASF Assy. (p.96)
2. Release the Paper Back Lever Right from the two grooves of the ASF Assy.
3. Release the shaft end of the Paper Back Lever Right, and remove the Paper Back 
Lever Right and the torsion spring from the ASF Assy.
Figure 4-94. Removing the Retard Roller Assy (1)
Make sure to install the LD Roller with the triangular groove 
marked inside as shown below.
Figure 4-92. Reinstalling the LD Roller 
Align the phases of the ASF Sensor Flag and LD Roller Shaft as 
shown below.
Figure 4-93. Reinstalling the ASF Sensor Flag




After replacing the following parts, be sure to apply G-26 and G-75 
grease to the area specified for each part.
ASF Frame:See Figure 6-15 on page 159.
LD Roller Shaft: See Figure 6-16 on page 159.
Hopper: See Figure 6-17 on page 159.
LD Roller 
Triangular groove
LD Roller Shaft
ASF Sensor Flag
Align the position for protrusion of LD Roller 
Shaft with protrusion of ASF Sensor Flag.
	

When replacing the Retard Roller Assy, replace the LD Roller 
together with the Retard Roller Assy. (Refer to 4.4.7 LD Roller 
(p.99).)
Shaft end
Paper Back Lever Right
Torsion spring
Bottom side
Groove 
						

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Disassembly And Assembly Disassembling the Printer Mechanism 102
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4. Detach the extension spring from the tab of the Retard Roller Assy, and remove 
the Retard Roller Assy from the ASF Assy.
Figure 4-95. Removing the Retard Roller Assy (2)
Insert the two shafts of the Retard Roller Assy to the two holes 
of the ASF Assy.
Figure 4-96. Reinstalling the Retard Roller Assy
Extension spring
Retard Roller Assy
Tab
Retard Roller Assy
Shafts and Holes
See below for installing the torsion spring of the Paper Back 
Lever Right.
Figure 4-97. Reinstalling the Torsion Spring
Put the spring leg through 
the hole of ASF Assy.
Attach the spring leg on the 
Paper Back Lever Right.
Torsion spring
Inside
Torsion spring 
						

							WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C
Disassembly And Assembly Disassembling the Printer Mechanism 103
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4.4.9  Front Paper Guide Pad
1. Remove the Printer Mechanism. (Refer to 4.4.4 Lower Housing / Printer 
Mechanism (p.86).)
2. Remove the Front Paper Guide Pads from the Front Paper Guide with tweezers.
Figure 4-98. Removing the Front Paper Guide Pad
Take care to prevent the grease contained on the Front Paper 
Guide Pads from sticking to other parts.
Front Paper GuideFront Paper Guide Pad
After installing the Front Paper Guide Pads, lift the Printer 
Mechanism, and check the following points.
1. Make sure that the tabs on the Pads are not cut midway.
2. Make sure that all tabs are in place on the Front Paper Guide, 
and that they are facing down (towards the Waste Ink Pads) 
without any folds.
3. Make sure that the tab foldbacks are protruding completely 
from the Front Paper Guide.
Figure 4-99. Reinstalling the Front Paper Guide Pad (1) 
4. Make sure that the pad is placed under a tab of the Front Paper 
Guide.
Figure 4-100. Reinstalling the Front Paper Guide Pad (2) 
5. Make sure that all the tabs on the pads are fitted into the 
securing section under the Front Paper Guide.
TabsTabs
Tabs
OKNG 
						

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Disassembly And Assembly Disassembling the Printer Mechanism 104
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4.4.10  Waste Ink Pad / Waste Ink Tray Assy
1. Remove the Printer Mechanism. (Refer to 4.4.4 Lower Housing / Printer 
Mechanism (p.86).)
2. Peel off the Pad Stopper Sheet from the Lower Housing.
3. Remove the four Waste Ink Pads from the sections indicated with A to D of the 
Lower Housing.
Figure 4-101. Removing the Waste Ink Pad4. Release the tab that secure the Waste Ink Tray Assy, and remove the Waste Ink 
Tray Assy from the Lower Housing.
Figure 4-103. Removing the Waste Ink Tray Assy
Attach the Pad Stopper Sheet as shown below.
Figure 4-102. Reinstalling the Pad Stopper Sheet
Referring to Figure 4-101, correctly attach the four Waste Ink 
Pads.
A
B
D
C
Pad Stopper Sheet
23mm ± 5mmPad Stopper Sheet
Install the Waste Ink Tray Assy under the rib of the Lower 
Housing.
Route the Waste Ink Tube through the three grooves of the 
Lower Housing.
Figure 4-104. Routing the Waste Ink Tube
Waste Ink Tray AssyRibTab
Lower Housing
Waste Ink Tube
Lower HousingGroove 
						

							WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C
Disassembly And Assembly Disassembling the Printer Mechanism 105
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4.4.11  Foot
1. Remove the Printer Mechanism. (Refer to 4.4.4 Lower Housing / Printer 
Mechanism (p.86).)
2. Remove the six foot at the backside of the Lower Housing.
Figure 4-105. Removing the Foot




After replacing or removing the Waste Ink Pads and the Waste Ink 
Tray Assy, always make the required adjustments referring to the 
following.
“Chapter 5 Adjustment (p.128)”
Foot 
						

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Disassembly And Assembly Disassembling the Printer Mechanism 106
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4.4.12  Paper EJ Frame Assy
1.Remove the Upper Housing Support Assy. (p.74)
2. Remove the Left Frame Support Plate. (Refer to 4.4.5 Carriage Shaft / Carriage 
Unit Step4 (p88), Step5(p89).)
3. Return the rotation position of the Right PG Cam.
4. Remove the four C.B.S. M3 x 6 that secure the Paper EJ Frame Assy.
Figure 4-106. Screws that Secure the Paper EJ Frame Assy5. Pull frontward the Paper EJ Frame Assy and remove it from the Printer 
Mechanism.
Figure 4-107. Removing the Paper EJ Frame Assy 
Paper EJ Frame Assy
23
Tabs
2) C.B.S. M3x6
(8±1 kgf.cm)
41
Tabs
2) C.B.S. M3x6
(8±1 kgf.cm)
When performing the following procedure, take care not to scratch 
the Star Wheel.
Star Wheel Roller
Paper EJ Frame Assy 
						

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Disassembly And Assembly Disassembling the Printer Mechanism 107
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4.4.13  Ink System Unit
1.Remove the Paper EJ Frame Assy. (p.106)
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. Release the two tabs that secure the clamps to the Upper Shield Plate, and remove 
the two clamps.
4. Disconnect the Pump Motor cable from the connector CN117 on the Main Board.
5. Remove the Pump Motor cable from the Cord Keep.
Figure 4-109. Removing the Pump Motor cable
Hook both rear ends of the Paper EJ Frame Assy onto the tabs 
on the Main Frame.
Figure 4-108. Reinstalling the Paper EJ Frame Assy
Align the tabs with the five positioning holes. 
See Figure 4-106 (p.106)
Tighten the screws in the order shown in Figure 4-106




After replacing or removing the Paper EJ Frame Assy, always make 
the required adjustments referring to the following.
“Chapter 5 Adjustment (p.128)”
Tabs
Referring to Figure 4-147, attach two pieces of acetate tape to 
the frame.
Referring to Figure 4-148, route the Pump Motor cable, the 
Relay connector cable and the CR Motor connector cable.
CN117
Main Board Pump Motor cable
Clamps
Cord Keep
Tabs 
						

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Disassembly And Assembly Disassembling the Printer Mechanism 108
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6. Remove the two C.B.S. M3 x 4 screws that secure the Ink System Guide Plate, and 
remove it.
Figure 4-110. Removing the Ink System Guide Plate7. Grip both ends of the Ink Tube fasteners with your fingers, slide them in the 
direction of the arrows, and pull out the Ink Tube from the Joint Tube.
8. Squeeze and hold both ends of the fastener attached on Ink Tube and slide it in the 
direction of the arrow, then pull out the Ink Tube from the Joint Tube.
Figure 4-112. Removing the Ink Tube
9. Remove the two C.B.S. M3 x 6 screws that secure the Ink System Unit.
Figure 4-113. Screws that Secure the Ink System Unit
Align the notch on the Ink System Guide Plate with the notch 
on the Main Frame.
Referring to Figure 4-110 and Figure 4-111, attach a piece of 
acetate tape.
Figure 4-111. Reinstalling the Ink System Guide Plate
Tighten the screws in the order shown in Figure 4-110
1
2
10) C.B.S. M3x4
(8±1 kgf.cm)
Ink System Guide 
Plate
Acetate tape
Tighten the screws in the order shown in Figure 4-113
Ink Tube
Fastener
Joint Tube
2
RearFront
1
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 109
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10. Remove the C.B.S. M3 x 6 screw and the C.B.S.(P2) M3x10 screw that secure the 
Right Support Frame and the Joint Tube, and remove the Right Support Frame and 
the Joint Tube from the Main Frame.
Figure 4-114. Removing the Right Support Frame11. Remove the Ink System Unit downwards from the Main Frame.
Figure 4-117. Removing the Ink System Unit
Align the positioning holes on the Right Support Frame with 
the guide pins on the Main Frame.
Figure 4-115. Installing the Right Support Frame
2
Upper 
surface
2) C.B.S. M3x6
(8±1 kgf.cm)
1
Joint Tube
Right Support 
Frame
3) C.B.S. (P2) M3x10
(8±1 kgf.cm)
Positioning holes and 
Guide pins
Align the positioning hole of the Printer Mechanism with the 
guide pin of the Joint Tube.
Figure 4-116. Reinstalling the Joint Tube
Tighten the screws in the order shown in Figure 4-114
Positioning hole 
and Guide pin
Joint Tube
Ink System Unit 
						

							WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C
Disassembly And Assembly Disassembling the Printer Mechanism 110
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4.4.14  Front Paper Guide / Paper EJ Roller /
Front Paper Guide Pad Tray
1.Remove the Paper EJ Frame Assy. (p.106)
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. Remove the EJ Grounding Spring from the Main Frame with tweezers.
Figure 4-119. Removing the EJ Grounding Spring
Align the positioning two holes on the Main Frame with the two 
guide pins on the Ink System Unit.
Figure 4-118. Reinstalling the Ink System Unit
Positioning holes
Main Frame
Guide pins
Ink System Unit
Referring to Figure 4-120, correctly install the EJ Grounding 
Spring.
Figure 4-120. Reinstalling the EJ Grounding Spring
EJ Grounding 
Spring