Epson B 1100 Service Manual

							WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C
Adjustment Adjustment without Using Adjustment Program 141
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5.2.6  PF band adjustment
The following pattern is printed.
Figure 5-7. PF Band Adjustment Printout Pattern
How to Judge
Examine the printout patterns and enter the value for the pattern with no overlap and 
gap between the two rectangles.
Additional information
When overlap and gap are observed in the all patterns, enter the value for the best one, 
and print the adjustment pattern again.
5.3  Adjustment without Using Adjustment Program
This section explains the adjustments that do not use the Adjustment Program.
5.3.1  PF Belt Tension Adjustment
When either of the following parts has been removed or replaced, this adjustment must 
be performed to reduce load on the PF Motor and to secure paper feed accuracy.
PF Motor
PF Roller Shaft
Printer Mechanism
The PF Tension Measuring Tool is used for this adjustment.
Figure 5-8. PF Tension Measuring Tool
	

Example for judgement
1
0
-1
OK NG NG 
						

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5.3.1.1  PF Belt Tension Adjustment Method
1. Secure the PF Motor to the Printer Mechanism, and install the Drive Belt on the 
Gear of the PF Scale and the Pinion Gear of the PF Motor.
2. Press the [POWER] button. The LCD of the Measuring Tool displays No. 0 and 
No. 1.
3. From among No. 0 to No. 9, select the channel you want to store its setting by 
pressing the [SELECT] button. The initial value may be selected as the channel.)
4. Press the [WEIGHT] button. The initial value will be displayed. Type the ten-key 
pad so that “1.2g/m” is displayed.
5. Press the [WIDTH] button. The initial value will be displayed. Enter “5.0 mm” 
with the ten-keypad.
6. Press the [SPAN] button. The initial value will be displayed. Enter “48mm” with 
the ten-keypad.
7. Bring the Microphone as close as possible to the center of the Timing Belt.
Figure 5-9. Microphone Position8. Press the [MEASURE] button. (“----” is displayed on the LCD screen.)
9. Put the tip of the tweezers on the Drive Belt, and flip it downward in that position. 
The “----” displayed on the LCD will become wave pattern during the 
measurement. When it has finished, the measurement result will be displayed by 
“N” (Newton) after the beep. This jig can pick up and measure sounds accurately, 
regardless of the flipping force.
10. Repeating 8 and 9, delicately shift the variable part of the PF Motor mounting 
position to adjust the tension until the tension falls within the allowable standard 
value.
Proper measurement may be interrupted by sounds picked up from 
around. Make measurement in silent environment.
Microphone of Measuring Tool
Timing Belt
As the Drive Belt is flipped with the tip of tweezers in the following 
steps, carefully choose the flipping position so that the Belt will not 
make contact with the Microphone by reaction of flipping.




Standard Value: 10.5 ± 2N (8.5 ~ 12.5N)
Even if the Timing Belt is flipped, the LCD screen may not 
change at all. In this case, flip the Timing Belt again after a few 
seconds have passed.
If measurement results differ greatly from each other, acoustic 
sounds may not be picked up properly in any of the 
measurements. Therefore, flip the Timing Belt again with the 
tweezers, and record the value at which two measurement 
results are approximate. Displaying errors in the range 1/100 to 
5/100, the Measuring Tool has high reliability. 
						

							WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C
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5.3.2  PG Adjustment
When any of the following parts has been removed or replaced, this adjustment must 
be performed to secure the specified clearance between the print surface of the Print 
Head and paper.
Print Head
PF Roller Shaft
Carriage Unit
Carriage Shaft (Including the case when just moved the Parallelism Adjust 
Bushing)
Printer Mechanism
In this adjustment, use the same Adjustment Gauge on the left and right sides.
Figure 5-10. Adjustment Gauge
5.3.2.1  PG Adjustment Method
1. Install the printer on a level base.
2. Connect the Tester to the printer frame and Adjustment Gauge.
Figure 5-11. Connecting the Tester
	

Some pictures used in this section are Stylus Photo R1800. The 
adjustment method for WorkForce 1100/Epson Stylus Office 
T1110/B1100/T1100/Epson ME Office 1100 is the same as the 
one for Stylus Photo R1800.
When only removing the Carriage Shaft, you do not need to 
perform this adjustment. 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. (Refer to 4.4.5 Carriage Shaft / 
Carriage Unit (p88) .)
Do not touch the Adjustment Gauge Plate surface with bare 
hands.
If the Adjustment Gauge Plate surface is stained by ink or, etc 
wipe it with a soft cloth.
Continuity 
Measuring PointAdjustment Gauge 
Plate (Top face)
Before starting PG adjustment, completely wipe drops of ink 
around the Print Head. Remaining drops of ink will stick to the 
continuity measurement portion of the Adjustment Gauge, and 
generate continuity before the continuity measurement portion 
makes contact with the metal frame around the Print Head, 
interrupting accurate PG Adjustment.
As the ink in the Print Head may stick fast and damage the 
Print Head during PG Adjustment, make the continuity time 
detected with a tester as short as possible. (Maximum 3 
minutes)
Place the printer on a level, warp-free table. Normal PG 
Adjustment cannot be performed on a warped table.
Frame
Tester
Adjustment Gauge 
						

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3. Load unused Ink Cartridges of all colors into the Carriage Unit.
4. Loosen the screw that secures the Parallelism Adjust Bushing.
5. Turn the Parallelism Adjust Bushing upward to align the frame edge and the 
bottom of the Parallelism Adjust Bushing gear.
Figure 5-12. Setting the Parallelism Adjust Bushing6. With its conductor connection portion up, set the Adjustment Gauge in the 
specified position (on the left side of the Front Paper Guide).
Setting Position
Rear direction: Align the rear end of the Gauge with the Driven Roller Shaft 
of the Upper Paper Guide.
Left direction:  Release the left end of the Gauge from the Tab on the Front 
Paper Guide in Figure 5-13.
Figure 5-13. Setting the Adjustment Gauge
7. Move the Carriage Unit onto the Adjustment Gauge.
Moving position
Align the left end of the Gauge with the left end of the Carriage Unit.
Figure 5-14. Moving the Carriage Unit
When the Parallelism Adjust Bushing is turned upwards, the frame 
rises up and PG narrows. Make sure that the frame does not come 
into contact with the Print Head when performing the following 
procedure.
Parallelism Adjust 
Bushing
Positioning PointScrew
Positioning 
Point
Screw
Parallelism Adjust 
Bushing
Setting Position
Conductor Connection Point
Tab
Setting Position 
						

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8. To set the PG position to the “--” position, turn the PG Cam on the right end of the 
Carriage Shaft clockwise so that the point marked “--” faces down.
Figure 5-15. Markings of the PG Cam
9. Lower the Gear of the Parallelism Adjust Bushing on the left side of the frame 
stepwise, and confirm continuity. When continuity is confirmed, define the 
position where the Gear was raised one step up from the continuity position 
(where continuity is lost) as the left side PG position. Move the Parallelism Adjust 
Bushing at least twice to confirm that the continuity position and the non-
continuity position are the same.10. To set the PG position to “0” or more, turn the PG Cams on both ends of the 
Carriage Shaft CCW so that the point marked “0” (or “+” or “++”) faces down.
11. With its conductor connection portion up, set the Adjustment Gauge in the 
specified position (on the right side of the Front Paper Guide).
Setting Position
Rear direction:  Align the rear end of the Gauge with the Driven Roller Shaft 
of the Upper Paper Guide.
Right direction: Release the right end of the Gauge from the Tab on the Front 
Paper Guide in Figure 5-17.
Figure 5-17. Setting the Adjustment Gauge




PG Standard Value
PG – – (Minus Minus) :1.05mm~1.25mm
PG – (Minus) :1.2mm~1.4mm
Adjustment Resolution:0.06mm
PG Cam
	

The following figure shows the states of the Adjust Parallel Bushing 
of the left side of the frame and the PG. This also applies to the 
Adjust Parallel Bushing on the right side of the frame.
Figure 5-16. Relationship between Parallelism Adjust Bushing and PG
Narrower PG
Wider PG
Parallelism 
Adjust Bushing
Setting PositionConductor 
Connection PointTab 
						

							WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C
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12. Move the Carriage Unit onto the Adjustment Gauge.
Moving position
Align the right end of the Gauge with the right end of the Carriage Unit.
Figure 5-18. Moving the Carriage Unit
13. Return the PG position to “--”.
14. As in step 9, move the Parallelism Adjust Bushing on the right side of the frame to 
set the right side PG position.
15. Set the PG position to 0 or more.
16. Set the Adjustment Gauge on the left side of the Front Paper Guide.
17. Move the Carriage Unit onto the left side Adjustment Gauge.
18. Return the PG position to “--”.
19. Check continuity again at the PG position on the left side. If the PG position is not 
out of position, tighten the Parallelism Adjust Bushing with the screws to end the 
adjustment. If it is out of position, repeat the adjustment procedure from step 9.5.3.3  PF Roller Shaft Center Support Position 
Adjustment
This adjustment must be performed to compensate the deflection amount on the PF 
Roller Shaft and to maintain an appropriate paper feed amount when the following 
parts are removed and replaced.
PF Motor
PF Roller Shaft
The PF Roller Shaft Position Adjustment Jig and Level block are used for this 
adjustment.
Figure 5-19. PF Roller Shaft Center Support Position Adjustment Jig 
and Level Block
Setting Position
	

A substitute level block can be used if its surface accuracy is 
within 50.
Use a Spanner (M3) to loosen the screw that secures the Center 
Support Bushing.
PF Roller Shaft Center Support 
Position Adjustment Jig
Level Block 
						

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5.3.4  How to Adjust the PF Roller Shaft Center 
Support Position
1. Before performing this adjustment, remove the following parts:

Lower Housing (Refer to 4.4.4 Lower Housing / Printer Mechanism (p86) .)
ASF Assy (Refer to 4.4.6 ASF Assy (p96) .)

Board Assy (Refer to 4.3.1 Board Assy (Main Board/Power Supply Board) 
(p75) .)
Carriage Unit (Refer to 4.4.5 Carriage Shaft / Carriage Unit (p88) .)
2. Install the printer on a level base.
3. Set the PF Roller Shaft Position Adjustment Jig in place on the Level block, and perform 
zero adjustment.
Long hand position: Turn the dial to adjust the “0” position on the scale to the 
long hand position with the jig set in place on the Level 
block.
Short hand position: Check it.
Figure 5-20. Setting the PF Roller Shaft Position Adjustment Jig (1)4. Tilt the Printer Mechanism at about 45 degrees, and loosen the screws that secure 
the Center Support Bushing Cam and the Center Support Bush.
Figure 5-21. Center Support Bushing Cam and the Screw
Place the printer on a level, warp-free table. This adjustment 
cannot be performed correctly if it is performed on a warped table.
0 position
Center Support 
Bushing Cam
Bottom of Rear Center 
						

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5. Set the jig in place on the PF Roller Shaft as shown in the figure below.
Left side:  Inside of PF Roller left end (E-ring)
Right side: Clearance between PF Roller right end (Right Bushing 8) and left 
end of Upper Paper Guide
Center:  Clearance between the 2nd Upper Paper Guide and 3rd one from 
the left
Figure 5-22. Setting the PF Roller Shaft Position Adjustment Jig (2)6. Turn the Center Support Bushing Cam so that the long hand position is +30 from 
the “0” adjustment position.
7. Tighten the Center Support Bushing Cam and the Center Support Bushing with the 
screws.
The following page shows print samples when adjustment of the PF Roller Shaft Center 
Support Positions are inside and outside the specified value range. 
Check for any dirt on the PF Roller Shaft when performing the 
following procedure.




Standard Value: -10 ~ 40
Adjustment Resolution: 50
+30 must be set to compensate for the thickness of the coating 
on the PF Roller Shaft.
Make sure that the position of the short hand is the same as at 
“0” adjustment.
	

The figure below shows the positional relationship between the 
Center Support Bushing Cam and the Dial Gage.
Figure 5-23. Positional Relationship between Center Support 
Bushing Cam and the Dial Gage
Check the adjustment value again as it deviates slightly when the 
screw is tightened.
 down
 up
Center Support 
Bushing Cam 
						

							WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C
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Figure 5-24. Outside the Specified Value Range Figure 5-25. Inside the Specified Value Range
Unevenness 
						

							WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C
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5.3.5  ASF Guide Roller LDs Position Adjustment
When installing the Guide Roller LDs, the position of the Guide Roller LDs must be 
adjusted so that the positions of the LD Roller Shaft and Retard Roller are optimized in 
order to maintain the paper feed accuracy.
5.3.5.1  Adjusting the Position of the ASF Guide Roller LDs
1. After installing the ?4.4.6 ASF Assy? (p96), loosen the two C.B.S. M3x6 screws 
that secure the Guide Roller LD.
Figure 5-26. Guide Roller LD2. Turn Combination Gear 29.11 on the right side of the ASF Assy CCW to raise the 
Hopper to the upper limit position (until the Hopper Pad contacts the LD Roller).
Figure 5-27. Raising the Hopper
	

When only removing the ASF Assy, you do not need to perform this 
adjustment. In that case, mark the installing positions of the Guide 
Roller LDs before removing them, and make sure to align the 
markings when installing the Guide Roller LDs. (Refer to 4.4.6 ASF 
Assy (p96) .)
Front17) C.B. M3x6
(8±1 kgf.cm)
DowelRib
LD Roller ShaftGuide Roller LD
Guide Roller LD
Combination Gear 29.11
Hopper Pad
LD Roller