Overview; Printer Mechanism - Epson WorkForce 1100 Service Manual

WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100

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.
Board Name
Control circuit board
Power supply circuit board
Control panel board
Relay Board
CR Relay Board

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.
Table 2-1. Motors
Motor Name Type
DC motor with
CR Motor
brushes
DC motor with
PF Motor
brushes
DC motor with
APG Motor
brushes
4-phase, 48-pole
ASF Motor PM type stepping
motor
4-phase, 48-pole
Pump Motor PM type stepping
motor
Operating Principles
Model Number
CA58 MAIN
C698 PSB/PSE
C698 PNL
CA58 SUB-B
CA58 SUB
Applications/Functions
Used for carriage driving. Makes little noise during
driving. The CR linear scale and CR encoder sensor
are used to control the motor.
Drives the Paper loading rollers at the time of fixed-
value paper loading or paper feed/eject operation. To
grasp the paper feed pitch, the precision gear surface
is fitted with the PF scale and the PF encoder sensor
is used to control the motor.
Drives the Carriage Unit at the time of PG setting.
The two APG Sensors are driven vertically to control
the motor.
Drives the paper feed operation of the ASF. Since
this is a stepping motor, any scales or photo sensors
to know the driving conditions are not required.
Drives the pump, wiper, etc. of the Ink System. Since
this is a stepping motor, any scales or photo sensors
to know the driving conditions are not required.
The basic mechanism is almost same as the Epson Stylus Photo R1900.
The schematic diagram below shows the printer mechanism.
PF Encoder
Sensor
Front Paper
Eject Roller
Rear Paper
Eject Roller
PF Roller PF Roller
CR Scale
Cover Open
Sensor
PW Sensor
Carriage
Unit
Ink System
Unit
Pump Motor
Carriage
Shaft
Figure 2-1. Printer Mechanism Outline
Overview
Revision C
PF Scale PF Motor
APG Sensors
APG Motor
APF Sensor
Timing Belt
CR Encoder
Sensor
LD Roller
Retard
Roller
PE Sensor
ASF Motor
CR Motor
Confidential
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