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Casio UP-400 - User Manual

Casio UP-400
24 pages
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SERVICE MANUAL
UP-400
NOV. 2008
INDEX

Questions and Answers

  • H
    howard21Aug 3, 2025
    How to fix Casio UP-400 Printer if it won't turn on?
    • C
      Crystal StevensAug 3, 2025
      If your Casio printer won't turn on, first ensure the power switch is in the ON position. Then, check that the power adapter is firmly connected. If the printer resets when you turn it on, there may be an issue with the operation panel. Also, verify that the LED on the adapter lights up when connected to the wall; if not, check the power supply cord or the adapter itself. It could also be a problem with the power switch parts or the main board.
  • J
    Joshua HayesAug 8, 2025
    What to do if Casio UP-400 is printing garbled or not printing from HOST?
    • W
      Wendy BrownAug 8, 2025
      If your Casio printer is printing garbled output or failing to print from the host, start by running a self-test to assess print capability. If the self-test fails, consult the 'Can’t Print' section. Ensure the interface connector is securely connected with screws. Finally, verify the DIP switch settings by referring to the Appendix, correct any errors, and then power cycle the printer.
  • M
    Mikayla KirkAug 13, 2025
    What to do if the ERROR Indicator is ON for Casio UP-400 Printer?
    • A
      Anthony WeaverAug 13, 2025
      If the ERROR indicator is illuminated on your Casio printer, check whether the printer is out of paper and replace the roll if needed. If the cover won’t open even when you slide the cover open knob, the Automatic Paper Cutter might be locked; refer to section 3.3, “Printer Jam”. If the printer cover doesn’t close completely, open it by sliding the cover open knob and then close it again by pushing at the center of the cover.
  • E
    Erin LopezAug 19, 2025
    Why is the drawer kick not working on my Casio Printer?
    • J
      James PhillipsAug 19, 2025
      If the drawer kick isn't working on your Casio printer, first, ensure the drawer kick is properly connected; re-plug the cable until you hear or feel a click. Next, check the Y-cable to verify it's connected in the correct order. If these steps don't resolve the issue, there may be a problem with the main board inside the printer.
  • D
    dwaltonAug 23, 2025
    What does it mean when the ERROR and ON LINE Indication flash on and off alternately on Casio UP-400?
    • M
      Michelle FrederickAug 23, 2025
      If the ERROR and ON LINE indicators on your Casio printer are flashing alternately, check the DIP switch settings. Refer to the Appendix, turn the printer off, make any necessary changes, and then turn the printer back on.
  • A
    Alyssa SotoAug 28, 2025
    What to do if the ERROR indicator doesn’t light up while paper is exhausted on Casio UP-400?
    • M
      michaelreidAug 28, 2025
      If the ERROR indicator doesn’t light up on your Casio printer while paper is exhausted and the printer cover is closed, and the ON LINE Indicator lights up by using the ON LINE button, there may be something wrong with the paper sensor of the main board inside the printer. Alternatively, there could be an issue with the operating panel.

Summary

Specifications

Printing Specification

Details the technical specifications for the printer's printing capabilities.

Paper Specification

Outlines the requirements and types of paper rolls compatible with the printer.

Interface Specification

Describes the various interfaces supported by the printer for connectivity.

Drawer Kick-Out Connector

Explains the function and pinout of the drawer kick-out connector.

Disassembly Procedure

Circuitry Overview

Power Supply Circuit

Details the power supply circuit diagram and its components.

Maintenance and Troubleshooting

Installing or Replacing Paper Roll

Step-by-step guide for loading and changing the paper roll.

Adjusting Paper Near End Sensor

Instructions for calibrating the sensor that detects low paper levels.

Paper Jam Resolution

Procedures for clearing paper jams and troubleshooting cover opening issues.

Troubleshooting Common Errors

Lists common error messages, their causes, and solutions for the printer.

Self Test Procedure

How to perform a self-test to check printer functionality and print quality.

DIP Switch Settings

Dip Switch 1 Settings

Configuration options for Dip Switch 1, including baud rate and parity.

Dip Switch 2 Settings

Configuration options for Dip Switch 2, including data reception and buffer settings.

Circuit Diagrams

Parts List

Main Board Unit Parts

List of parts for the main control board.

Control Panel Unit Parts

List of parts for the printer's control panel assembly.

I;F LAN PWB Unit Parts

List of parts for the interface and LAN printed circuit board unit.

Power Switch Assembly Parts

List of parts for the power switch assembly.

Near End Sensor Unit Parts

List of parts for the paper near end sensor unit.

Case Unit Parts

List of parts related to the printer's case and covers.

Casio UP-400 Specifications

General IconGeneral
BrandCasio
ModelUP-400
CategoryPrinter
LanguageEnglish

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