Oki POS 3. Maintenance

44 OKIPOS 425S

3. Maintenance

3.1 Replacing the Ribbon Cartridge

When printing becomes light, replace the Ribbon Cartridge, following the procedure shown below:

1. Make sure the printer is turned OFF.

2. Press the Cover open bar and open the printer cover.

o425_03.jpg and o425_04.jpg

3. Center the printhead.

o425_06a.jpg

Contents

Main Page Contents Page Page 1. Setting Up the Printer 1.1. Select a Location 1.2 Where to install your printer 1.3 Unpacking Getting Started 1.4 Installing the Printer Getting to Know the OKIPOS 425S 1.4.1 Remove the Shipping Restraints 1.4.2 Setting the Interface Board Assembly 1.4.2.1 Setting the DIP Switches (RS-232C) 10 = OFF; 11 = ON * There are three types of errors: the parity error, the framing error, and the overrun error. DIPSW1 DIPSW2 Page Page Page 4 Page 16 OKIPOS 425S 1.5 Installing the Paper Paper Specifications Maximum thickness: 0.3 mm (0.012 inches) 1.5.1 Roll paper Page Page Page Page 1.5.2 Cut-Sheet Paper (Slip) 1.5.3 Cut-Sheet Paper (Validation/Stub) Page Page 1.5.4 Sprocket Paper (Tractor) Page Page Page 2. Using the Printer 2.1 Operation Panel Functions 2.1.1 Switching Functions * The above switch operations in principle correspond to special commands for switch control. 2.1.2 LED Function 2.2 Local Functions 2.2.1 Types 2.2.2 Starting 2.3 Menu Function (Receipt) Note For No. 3, 4, and 5, adjust to the proper values at factory shipment. 2.3.1 OEM Standard Model 36 OKIPOS 425S 2.3.2 OKI Standard Model 2.3.3 How to Operate 2.4 Hex Dump Function (Receipt) 2.4.1 Print Format 2.4.2 How to Print 2.5 Using the MICR Reader (Option) Page 2.6 MICR Read Test (Receipt) Page 2.7 Rewinder Winding Evaluation Continuous Print Test (Receipt) 3. Maintenance 3.1 Replacing the Ribbon Cartridge Page Page 3.2 Replacing the Roll Paper Page 3.3 Clearing Paper Jams Page Page Page 4. Troubleshooting and Repair 4.1 Alarm Indication for a Failure 4.1.1 Details of Alarm Indications 1One Cycle 4.1.2 LED Indication 5. Specifications 5.1 Introduction 5.1.1 Scope of Application 5.1.2 Characteristics Page 5.1.3 Configuration 5.2 General Specifications 5.2.1 Power Requirements 5.2.2 Environmental Conditions 5.2.3 Agency Approvals 5.3 Communication Interface Specifications 5.3.1 Parallel Interface (OKI/OEM Standard Type) Note: Pin arrangement 5.3.2 RS-232C Interface (OKI Standard Type) 1 Interface signals Note 1 Connector pin arrangement 5.3.3 Cash Drawer connector (OKI Standard Type) 1 Cash Drawer Connector Signals Note: Pin arrangement 5.3.4 Customer Display connector (OKI Standard RS-232C Interface Type) 1 Customer Display Connector Signals Note Pin arrangement 5.4 Physical Characteristics 5.4.1 Printhead 5.4.2 Printer 5.5 Logical Characteristics 5.5.1 Print Direction Bidirectional, unidirectional printing Short-line-seeking printing 5.5.2 Selectable Character Pitches Character width 5.6 Printer Performance 5.6.1 Print Speed Selected Font HSD Utility Size 20 CPI 16.4 CPI Print Speed 387 CPS 317 CPS Selected Font HSD Utility Size 10 CPI 8.2 CPI Print Speed 194 CPS 159 CPS 5.6.2 Line Feed Speed 5.7 Media Specifications 5.7.1 Cut-Sheet Paper (Slip/Validation) 5.7.2 Cut-Sheet Paper (Counterfoil/Stub) 5.7.3 Roll Paper 5.7.4 Sprocket Paper (Tractor) 5.7.5 Appendix: Media Specifications Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page 5.8 Paper Feed Specifications 5.8.1 Paper feed methods/Paths 5.8.2 Paper Positioning Restrictions 5.8.3 Paper Tear-off 5.8.4 Paper End Detection 5.9 MICR Specifications (Only with MICR type) 5.10 Ribbon Specifications 5.11 Reliability 6. Command Description 6.1 Control Code List 6.1.1 OEM Standard Model Page Page 6.1.2 OKI Standard Model Page Page Page 6.2 Character Set 6.2.1 Code table (OEM Standard Type) Page Page Page Page Page Page Page Page Users Guide: English 107 6.2.1.10 International character set table 6.2.2 Code table (OKI Standard Type) Page Page Page Page Page Page Page Page 6.2.2.10 International character set table 7. Using the Unitool Printer Driver 7.1 Setting Slip Paper in the Paper Tray 7.1.1 Using Registered Paper Icons Page Page 7.1.2 Using Custom Size Page Page Page Page Page 7.2 About the Validation Printing Area Page Page 7.3 Setting Tractor Paper in the Tractor Unit 7.4 Orientation 7.5 Special functions of the Windows 98 Version Printer Driver