Epson B 1100 Service Manual

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CHAPTER
2
OPERATING PRINCIPLES 

WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C
Operating Principles Overview 22
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2.1  Overview
This chapter explains the operating principles of the mechanical sections and electrical 
circuits in this product. The main components of this product are as follows.
2.2  Printer Mechanism
Like the conventional model, this product uses DC motors and stepping motors as 
power sources. The following table describes the motor types and their applications.The...

WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C
Operating Principles Printhead Specifications 23
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2.3  Printhead Specifications
The Printhead of this product is a F-Mach head.
The following shows the arrangement of the nozzles and the color arrangement of each 
nozzle line when viewed the Print Head from behind.
Figure 2-2. Nozzle Arrangement
Note  *  : #1,#61 and #121 nozzles of C column are used only for flushing, and are not used for 
printing.
Table...

WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C
Operating Principles PG Setting 24
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2.4  PG Setting
As this printer uses an Auto PG (APG), an appropriate PG position is set according to the used paper type.
The following table indicates the PG positions, the main applications of each position, and the relationships between the two sensors used with the APG.
Note  *  :  The signal output is “Low” while the PG positions are changed.
Table 2-3.
ApplicationPG...

WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C
Operating Principles Motors & Sensors 25
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2.5  Motors & Sensors
Motors
Sensors
Figure 2-3. Motors and Sensors Layout Table 2-4. List of Motors
Fig.NameSpecific
A PF MotorType: DC Motor Drive voltage: 42 V DC ± 5%
Armature resistance: 12.2  ± 10%
B APG MotorType: DC Motor Drive voltage: 42 V DC ± 5%
Armature resistance: 64.7  ± 15%
C ASF MotorType: 4-phase 48-pole PM type stepping motor Drive voltage: 42...

WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C
Operating Principles Power-On Sequence 26
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2.6  Power-On Sequence
This section describes the power-on sequences.
Condition
Completing ink charge.
No paper on the paper path.
The Printhead is capped with the Cap of the Ink System.
PG position is set to PG Typ.
The Carriage is locked by the CR lock.
	

The following explains how to use the simplified diagrams in Table 
2-6. The diagrams show the...

WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C
Operating Principles Power-On Sequence 27
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4-4. The Pump Motor rotates counterclockwise to set 
the Wiper of the Ink System, and then the Pump 
Motor rotates clockwise to retract the Wiper.
CCW
CW
4-5. The carriage slowly returns to its home position.
---
5. Setting the APG to PG Typ.
5-1. The APG Motor rotates clockwise and sets to PG 
Typ.---
6. PF-ASF initialization
6-1. The PE Sensor detects no paper and...

WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C
Operating Principles Printer Initialization 28
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Note *1 : The rotation directions of the Pump Motor and their corresponding functions are as 
follows.
Clockwise: Cap closing/Pump suction/Wiper retracting/CR locking
Counterclockwise: Cap opening/Pump release/Wiper setting/CR unlocking
*2 : Executes when the detected temperature is under 5 
oC (41oF) by the thermistor on the 
Printhead.
*3 : The empty suction...

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CHAPTER
3
TROUBLESHOOTING 

WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C
Troubleshooting Overview 30
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3.1  Overview
This chapter describes unit-level troubleshooting.
3.1.1  Troubleshooting according to Error Messages
After checking the printer LED and STM3 error indications, you can grasp the fault location using the check list in this section. When you find the fault location, refer to Chapter 4 
“Disassembly and Reassembly” and change the corresponding part and/or unit. The...