I Revision Level
FCC Compliance Statement
Trademarks
Epson FX-87W1170
Precautions
1 Printer Features
2 Installation and Setup Procedures
3 Troubleshooting
software
!Z’roubZeshooting
4 Disassembly/Assembly
5 Adjustments, Maintenance, and Lubrication
6 Principles of operation
Principles of Operation
ribbon
Page
Contents
Epson FX-870.0170
Removing the
Page
List of Figures
List of Tables
Page
EpsonFX-870/1170
Figure 1-1.External View of the FX-870/1170
Hardware Specifications
Paper Handling
Table l-l.Line Feed Speed (1 line = l/@
Precautions for Handling Paper
Friction feed
Push tractor feed
Pull tractor feed
Push-pulltractor feed
Paper Specifications
Normal Environmental Conditions
Humidity:30 - 60 % RI-I
Table 1-2. Specifications for Cut Sheets (Standard Paper)
Table
Table 1-4. Specifications for Continuous Paper
Table 1-5. Specifications for Envelopes
Table 1-6.Specifications for Labels
Table 1-7.Specifications for Roll Paper
Printable Area
Area
Figure 1-3.Printable Area for Cut Sheets
Figure 1-4.Printable Area for Continuous Paper
Figure 1-5. Printable Area for Roll Paper
Ribbon Cartridge
Electrical Specifications
Table 1-8.Electrical Specifications for 120 V Model
Environmental Conditions
Table 1-9.Environmental Conditions
Reliability
Safety Approvals
Firmware Specifications
Print Control
Table l-10.Character Size and Pitch
W i d t h
Interfaces
Figure 1-6.Data Transmission Timing
Table 1-13.Connector Pin Assignments and Signal Functions
Return
Signal
Name
Table 1-13.Connector Pin Assignments and
Signal Functions (Cont.)
signal
No
9 to
Optional Interfaces
Table 1-14.Optional Interfaces
Catalog W
Interface
Control Panel
Micro Feed Function
Bin Selection for the Cut Sheet Feeder
Paper Ejection
Indicators
READY
Table 1-15. Identification of Errors Using the LEDs
Default Settings
Table 1-17. Group 2 Features (ESC/P Mode)
Character Table
Table l-18.Group 2 Features (IBM Mode)
COND
L E D
Power On Default Settings
Table 1-19.Group 3 Features (Power-onSettings)
Figure l-8. Self-TestPrintout
l-8
Hexadecimal Dump
Figure 1-9. Hexadecimal Dump Printout
Paper-outDetection
Auto Tear-off
Buffer Full Printing
Thermal Protection
High-DutyPrinting
Adjust Lever Operation
Table l-20.Lever Positions
I Lever Position
Paber Thickness
Figure l-10.Lever Positions
Printer Initialization
Note:
Buzzer
Table 1-21.Buzzer Functions
Status
Sound
D e s c r i p t i o n
Main Components
C094 MAIN Board Assembly (Main Control Circuit Board)
Figure 1-12.CO94 MAIN Board Assembly
(Main Control Circuit Board)
C094 PNL Board Assembly (Control Panel Circuit Board)
C094
Figure 1-13.CO94 PNL Board Assembly
CO94
(Control Panel Circuit Board)
Printer Mechanism
Figure l-16.Printer Mechanism
Housing Assembly
Commonly Asked Questions and Answers
ribbons as
Yes
8.Q. What is the part number for the printhead
interface
input buffer
Q. How
paper paths
tractor
multi-part
paper
Installation and Setup
Site Requirements
Removing the Packing Materials
The Correct Power On Sequence
Running the Self-Test
Connecting Printer Cables
1 FGND
,l FGND
:~.-x,xl
Checking the Printer with the Computer
Tips to Increase Printer Life
Troubleshooting
Test Points
Table 3-2.Sensor Test Points
Table 3-3.Motor Test Points and Coil Resistance
Figure 3-1.Printhead Resistance
Table 3-4.Printhead Test Points and Coil Resistance
Table 3-5.Printhead Driver Test Points
Table 3-6.Carriage and Paper Feed Motor Driver Test Points
Error Codes
Table 3-7.Error Codes
Error Warning
Error
Cause
Problem Isolation
Table 3-8.Symptoms and Flowchart References (Continued)
Serial Communications Errors
Table 3-9.Identifying Serial Communications Errors
Table 3-9.IdentiQing Serial Communications Errors (Continued)
Problem
Possible Cause
and
Chart 1. Printer Dead at Power On
Chart 1. Printer Dead at Power On (Continued)
Chart 2. Carriage Does Not Move or Moves Abnormally
Chart 3. Paper Does Not Feed or Feeds Abnormally
Chart 4. Poor Print Quality in Self-Test
Chart 5. Ribbon Not Feeding Properly
Chart 6. Data fhm Host is Printed Incorrectly
Note: The host computer is assumed to
be operating normally
Chart 7. Page Length/Margins Incorrect
Chart 8. Printout Double-Spaced
Epson FX-870/i170
Connector Locations
Sensor Locations
Figure 3-5.Platen Gap Sensor
Figure 3-6.Front and Rear PE Sensors
Hex Quick Reference Table for ESC/P Commands
Table 3-10.Hex. Codes for ESC/P Commands (Continued)
Hex Quick Reference Table for IBM Commands
Table 3-11.Hex. Codes for IBM Commands (Continued)
Disassembly and Assembly
Page
Precautions
Tools
Table 4-1.Recommended Tools
Table 4-2.Equipment Required for Maintenance
Service Checks After Repair
Table 4-3.Inspection Checklist for Repaired Printer
QmwY
Component
items to Check
Screw Specifications
Table 4-4.Abbreviations Used for Screws
Table 4-5.Screw Types and Abbreviations
Notes for Unit Removal and Installation
Items to Remove Before Disassembling the Printer
Figure 4-2.Removing the Paper Guide Assembly
Removing the Panel Unit
Figure 4-3.Removing the Panel Unit
Assembly Note
Figure 4-4.Connecting the FFC Cable to the Panel Unit
Removing the Printhead
Figure 4-5.Removing the Printhead
Removing the Upper Housing Assembly
Upper Housing Assembly
CBC/ (M4X15)
\ Hooks
Screwdriver
Removing the Printer Mechanism
Figure 4-7. Removing the Printer Mechanism
Removing the Platen Assembly
Figure 4-8.Removing the Platen Assembly
Removing the Rear Frame Assembly
4 . Remove
Remove the left frame
Hexagon Nut
/frfd??iA
Removing the CR Motor Assembly
4-6.)
CR Motor Assembly
Face Screw (M3X7)
+$@)-BeltTension Plate
Removing the PF Motor Assembly
Figure 4-12.Removing the PF Motor Assembly
Disassembling the PF Gear Train
Figure 4-13.Disassembling the PF Gear Train
Figure 4-14.Positioning the Release Lever for Insertion
Removing the Carriage Assembly
Figure 4-15.Removing the Carriage Assembly
Assembly Note
Clip
Timing
Figure 4-16.Attaching the Timing Belt
Removing the Ribbon Drive (RD) Assembly
Figure 4-17.Removing the RD Assembly
Removing the Home Position (HP) Sensor
Figure 4-18.Removing the HP Sensor
Removing the Platen Gap (PG) Sensor
Figure 4-19.Removing the PG Sensor
Removing the Front and Rear Paper End (PE) Sensors
Figure 4-20. Removing the PE Sensors
m-am1
Removing the Release Sensor
Figure 4-21.Removing the Release Sensor
Arranging the Cables
Figure 4-22.Arranging the Cables
Disassembling the Tractor Unit
Figure 4-23.Disassembling the Tractor Unit
Figure 4-24.Position of the Cog
Removing the C094 MAIN Board Assembly
Figure 4-25.Removing the CO94 MAIN Board Assembly
Removing the C076 PSB Board Assembly
NOTE
Figure 4-26.Special Extractor Tool
Figure 4-27.Removing the C076 PSB Board Assembly
Adjustments, Maintenance, and Lubrication
Adjusting the Printer Mechanism
Figure 5-2.Parallelism Acijustment Bushing
Figure 5-3.Platen Gap
Bidirectional Alignment Adjustment
Adjustment Operation
Figure 5-4.Bidirectional Alignment Adjustment (Draft Mode)
Figure 5-5.Bidirectional Alignment Adjustment (NLQ mode)
Preventive Maintenance
Lubrication
Table 5-2.Lubrication Points
Page
Principles of Operation
Page
Page
Printer Mechanism Operation
Figure 6-1.How the Printhead Works
Carriage Mechanism
Figure 6-2.Carriage Operation
Platen
Adjustment
PO Sensor
Figure 6-3.Platen Gap Adjust Lever
Paper Handling Mechanisms
Paper Feed Mechanisms
Table 6-1.Paper Feed Methods and Paper Entrances
Paper Entrance
Paper Feed Method
Paper Advance Mechanisms
You
Figure 6-4.Friction Advance Operation Using the Top Paper Entrance
Figure 6-5.Push Tractor Operation Using the Rear Paper Entrance
Pthcipk of Operation
Figure 6-6.Push Tractor Operation Using the Front Paper Entrance
Figure 6-7.Pull Tractor Operation Using the Bottom Paper Entrance
Figure 6-8. Push-pullTractor Operation Using the Rear Paper Entrance
Figure 6-9. Push-pullTractor Operation Using the Front Paper Entrance
The Release Lever
Figure 6-10.Release Lever
Figure 6-11.Release Lever Setting Functions
Paper Paths
Figure 6-12.Paper Path for Friction Feeding Using the Top Entrance
for
sensor
Figure 6-13.Paper Path for Push Tractor Feeding Using the Rear Entrance
Figure 6-14.Paper Path for Pull Tractor Feeding Using the Rear Entrance
Paper
Principles of Operation
Figure 6-17.Paper Path for Friction Feeding Using the Front Entrance
Figure 6-18.Paper Path for Push Tractor Feeding Using the Front Entrance
Figure 6-19.Paper Path for Pull Tractor Feeding Using the Front Entrance
Figure 6-20.Paper Path for Push-pullTractor Feeding Using the Front Entrance
Ribbon Advance Mechanism
Table 6-2.Ribbon Advance Gear Linkage
Gear Linkage
Figure 6-21.Ribbon Advance Mechanism
Power Supply Operation
Pfinciples of Operation
Secondary
Figure 6-22.Power Supply Circuit Block Diagram
Control Circuit Operation
Control Circuit Operation Overview
Figure 6-24.Data Flow
Table 6-5.Functions of Main Components of CO94 MAIN
Reset Circuit
Figure 6-25. Power On Reset Circuit
Figure 6-26.Sensor Circuit Block Diagram
Carriage Motor Drive Circuit
Paper Feed Motor Drive Circuit
CPU
Figure 6-28.Paper Feed Motor Drive Circuit
Printhead Drive Circuit
CPU (IC2Cl)
HEAD
Figure 6-29.Printhead Drive Circuit
Parallel Interface Circuit
E2PROM Control Circuit
B5A66YA (IC4)
CPU (IC2Cl)
Data Bus
SCLSCK
Component Repair Information (for Dealers Outside the U.S.)
Table 6-7.Repairing the C076 PSB Board Assembly (Continued)
Page
Repairing the C094 MAIN Board Assembly
Repairing
Table 6-8.Repairing- the C094 MAIN Board Assembly
Problem Symptom
4bnormal
Table 6-8.Repairing the C094 MAIN Board Assembly (Continued)
(QZ 4,5
Table 6-8.Repairing the C094 MAIN Board Assembly (Continued)
Reference Materials
Connector Summary
CO76 PSB
Figure 7-1.Cable Connections
Table 7-1.CO94 MAIN Board Connector Summary
Board
Table 7-3.CN3, Front PE Sensor
(CO94 MAIN Hoard Assembly)
Table 7-6.CN6, Paper Feed Motor
(CO64 MAIN Hoard Assembly)
Table 7-7.CN7, Home Position Sensor
Table 7-8.CNS, Printhead
(CO94 MAIN Board Assembly)
Table 7-10.CN12, Control Panel (CO94 MAIN Board Assembly)
Table 7-11.CN13, CarA& Motor
(CO94 MAlN Board Assembly)
Circuit Diagrams
Figure 73. C094 MAIN Board Assembly
Circuit Diagram
C076 PSB Power Supply Board
CO76 PSB Power Supply Board
Figure 7-6.CO94 PNL Board Assembly Circuit Diagram
Circuit Board Component Layouts
EPS-I
Figure 7-8.CO76 PSB Board Assembly Component Layout
Sw2
A S S Y 2 0 0 6 1 6 0 0
FL+
Figure 7-9.CO94 PNL Board Assembly Component Layout
Epson F&870/1
380 ’
Figure 7-10. FX-870Case Outline Drawing
Figure 7-11. F’X-1170Case Outline Drawing
Page
Index
Index-2
Index-3
Index-4
Index-5
Index-8
Index-7
Page
Index-9
Index-10
Index
Index-11
Index-12
Index-13
Index-14
