Lexmark 4227 Service Manual - Page 140

Lexmark 4227 - Forms Printer B/W Dot-matrix Manual

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Page 140 highlights

4227-300 Carrier 4-12 Carrier Motor Assembly 4-15 Carrier Plate 4-16 Jammed Label 4-16 Label Jam 4-16 Lower Feed Roller 4-17 Main Logic Board 4-21 Memory Module 4-22 Operator Panel 4-22 Paper Empty Sensor 4-22 Paper Feed Motor 4-25 Paper Guide 4-25 Paper Guide/Platen 4-25 Paper Select Lever 4-25 Paper Select Sensor 4-26 Paper Separator 4-27 Pinch Roller (Lower) 4-21 Power Supply 4-29 Power Supply Fan 4-29 Print Unit 4-29 Printhead 4-32 Printhead Cables 4-33 Ribbon Drive Motor 4-34 Right Side Frame 4-35 Sub Logic Board 4-37 TOF Sensor 4-22 Top Cover 4-5 Upper Feed Roller 4-38 S Safety information vi Service Checks 2-11 Abnormal Print 2-19 ASF Auto Sheet Feeder 2-13 Auto Gap 2-11 Auto Sheet Feeder 2-13 Carrier Drive 2-15 Intermittent Problem 2-16 No Print 2-19 Operator Panel 2-20 Paper Feed 2-21 POST 2-24 Power Failure 2-25 Print Quality 2-27 I-2 Service Manual Print Wire Drive Failure 2-28 Ribbon Drive 2-30 Tractor 2 2-31 Setting Printer Functions 1-7 Signal Connections 6-7 Block Diagram (4227-300) 6-16 Main Logic Board Auto Gap Motor 6-12 Auto Gap Sensor 6-9 Carrier Motor Cable #1 6-9 Carrier Motor Cable #2 6-11 Carrier Motor Cooling Fan (4227-300) 6-10 Operator Panel 6-11 Paper Empty & TOF Sensors 6-9 Paper Feed Motor 6-9 Paper Select Sensor 6-8 Parallel Interface Cable (4227-300) 6-7 Ribbon Motor 6-12 Serial Board (4227-300) 6-12 Sub Logic Board (4227-300) 6-8 Tractor PSet & Jam Sensors 6-11 Tractor 2 DIN 6-10 5 V dc Power (4227-300) 6-10 Operator Panel Board - Ribbon Cover Sensor 6-14 Power Supply-Main & Sub Logic Board 6-7 Serial Board - Serial Cable (4227- 300) 6-13 Sub Logic Board Printhead (4227-300) 6-14 Symptom Checks Abnormal Indications 2-4 Abnormal Print Problems 2-4 ASF Problems 2-5 Operator Panel Problems 2-8 Paper Feed Problems 2-6 Power Problems 2-8 Print Quality Problems 2-9 6XX Error Indications 2-5

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I-2
Service Manual
4227-300
Carrier
4-12
Carrier Motor Assembly
4-15
Carrier Plate
4-16
Jammed Label
4-16
Label Jam
4-16
Lower Feed Roller
4-17
Main Logic Board
4-21
Memory Module
4-22
Operator Panel
4-22
Paper Empty Sensor
4-22
Paper Feed Motor
4-25
Paper Guide
4-25
Paper Guide/Platen
4-25
Paper Select Lever
4-25
Paper Select Sensor
4-26
Paper Separator
4-27
Pinch Roller (Lower)
4-21
Power Supply
4-29
Power Supply Fan
4-29
Print Unit
4-29
Printhead
4-32
Printhead Cables
4-33
Ribbon Drive Motor
4-34
Right Side Frame
4-35
Sub Logic Board
4-37
TOF Sensor
4-22
Top Cover
4-5
Upper Feed Roller
4-38
S
Safety information
vi
Service Checks
2-11
Abnormal Print
2-19
ASF Auto Sheet Feeder
2-13
Auto Gap
2-11
Auto Sheet Feeder
2-13
Carrier Drive
2-15
Intermittent Problem
2-16
No Print
2-19
Operator Panel
2-20
Paper Feed
2-21
POST
2-24
Power Failure
2-25
Print Quality
2-27
Print Wire Drive Failure
2-28
Ribbon Drive
2-30
Tractor 2
2-31
Setting Printer Functions
1-7
Signal Connections
6-7
Block Diagram (4227-300)
6-16
Main Logic Board
Auto Gap Motor
6-12
Auto Gap Sensor
6-9
Carrier Motor Cable #1
6-9
Carrier Motor Cable #2
6-11
Carrier Motor Cooling Fan
(4227-300)
6-10
Operator Panel
6-11
Paper Empty & TOF Sensors
6-9
Paper Feed Motor
6-9
Paper Select Sensor
6-8
Parallel Interface Cable
(4227-300)
6-7
Ribbon Motor
6-12
Serial Board (4227-300)
6-12
Sub Logic Board (4227-300)
6-8
Tractor PSet & Jam Sensors
6-11
Tractor 2 DIN
6-10
5 V dc Power (4227-300)
6-10
Operator Panel Board - Ribbon
Cover Sensor
6-14
Power Supply-Main & Sub Logic
Board
6-7
Serial Board - Serial Cable (4227-
300)
6-13
Sub Logic Board
Printhead (4227-300)
6-14
Symptom Checks
Abnormal Indications
2-4
Abnormal Print Problems
2-4
ASF Problems
2-5
Operator Panel Problems
2-8
Paper Feed Problems
2-6
Power Problems
2-8
Print Quality Problems
2-9
6XX Error Indications
2-5