Oki PACEMARK 4410 Maintenance Manual

Also see for Microline 4410: User guide

Contents

40496501TH Rev.1 4 /CONTENTS1. CONFIGURATION ..................................................................................... 61.1 Basic System Configuration............................................................... 61.2 Printer Specifications ......................................................................... 71.3 Option Specifications ......................................................................... 81.4 Basic Specifications ........................................................................... 92. THEORY OF OPERATION ........................................................................ 122.1 Electrical Operation ........................................................................... 122.1.1 Summary ................................................................................................. 122.1.2 Microprocessor and the peripheral circuit ............................................... 122.1.3 Initialization .............................................................................................. 212.1.4 Interface control ....................................................................................... 222.1.5 Parallel Interface Control ......................................................................... 222.1.6 Serial Interface ........................................................................................ 232.1.7 Printing operation .................................................................................... 242.1.8 Printhead control ..................................................................................... 252.1.9 Print Compensation Control .................................................................... 272.1.10 Space motor control ................................................................................ 272.1.11 Line feed .................................................................................................. 282.1.12 Bail, tractor switching, AG, ribbon motor control ..................................... 292.1.13 Operation Panel ...................................................................................... 302.1.14 Alarm circuits ........................................................................................... 322.1.15 Power supply circuit ................................................................................ 342.2 Mechanical Operation ........................................................................ 352.2.1 Printhead mechanism and operation (See Figure 2-13) ......................... 352.2.2 Spacing operation (See Figure.2-15) ...................................................... 372.2.3 Head gap adjusting ................................................................................. 382.2.4 Ribbon drive (See Figure) ....................................................................... 412.2.5 Paper Feed Mechanism .......................................................................... 422.2.6 Bail Feed Mechanism (See Figure ) ........................................................ 462.2.7 Paper End Detection Mechanism (See Figure ) ..................................... 483. PARTS REPLACEMENT ........................................................................... 503.1 Precautions for Parts Replacement ................................................... 503.2 Parts Layout....................................................................................... 533.3 How to Change Parts......................................................................... 543.3.1 Cover-Assy-Access / Cover-Assy-Side (R) / Cover-Assy-Side (L)/Cover-Assy-Front / Frame-Assy-Rear / Plate-Front (stuck) .................. 553.3.2 Printer Unit .............................................................................................. 563.3.3 Control Block [Control Board (PMA Printed Board),Driver Board (PDA Printed Board)] ......................................................... 573.3.4 Power Supply Assy ................................................................................. 583.3.5 PG Cooling Fan ....................................................................................... 593.3.6 I/F Board (PHA Printed Board) ................................................................ 603.3.7 AG Board (PGA Printed Board) / Connector Cord .................................. 613.3.8 AG Motor Assy ........................................................................................ 623.3.9 Mini Pitch Belt .......................................................................................... 633.3.10 Tractor Change Motor Assy .................................................................... 643.3.11 Bail Motor Assy ....................................................................................... 653.3.12 LF Motor Assy ......................................................................................... 663.3.13 Head Cooling Fan 1 ................................................................................ 673.3.14 Head Cooling Fan 2 ................................................................................ 683.3.15 Space Motor ............................................................................................ 69