Overview; Printer Mechanism - Epson Stylus Photo 2100 / 2200 Service Manual

EPSON Stylus PHOTO 2100/2200

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.
Control circuit board
Power supply circuit board
Control panel board

2.2 Printer Mechanism

Like the Stylus PHOTO 2000P, this product uses DC motors as power sources. The
following table describes the motor types and their applications.
Table 2-1. Various Motors
Motor Name Type
DC motor with
CR motor
brushes
DC motor with
PF motor
brushes
4-phase, 48-pole
ASF/Pump motor PM type
stepping motor
Though the Stylus PHOTO 2100/2200 is similar in basic structure of the mechanism to
the Stylus PHOTO 2000P, it has the following features.
• For compatibility with CD-R label direct printing, the CD-R tray adaptor and
exclusive sensor are loaded. (Only for Stylus PHOTO 2100)
• To feed board paper and roll paper, the exclusive paper feed guide is fitted.
• For compatibility with the CD-R tray and correction of ink transfer to the roller, the
newly designed paper eject unit is provided.
OPERATING PRINCIPLES
: C387 MAIN
: C387 PSB/PSE
: C387 PNL
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.
Power source to drive 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 pump and performs paper feed operation
from the ASF. Because of a stepping motor, this
motor does not require a scale, photo sensor and like
to be fitted to grasp the driving conditions.
The following shows the outline of the printer mechanism.
Loop scale PF roller
PF motor
Cutter adapter
Paper eject roller A
Paper eject roller B
PW sensor
Printhead
CR unit
CD-R sensor
CR shaft B
CR lock lever
Pump unit
Cap unit
Timing belt CR shaft A
Figure 2-1. Printer Mechanism Outline
Overview
Revision A
PF encoder sensor
ASF sensor
ASF sensor
wheel
LD roller shaft
CR encoder
LD roller
sensor
PE sensor
ASF/Pump
motor
linear
scale
ASF/Pump
switching ring line
CR motor
Release lever
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