HiTi Digital S400 User Manual

1
S4xx Series
Service Guide
Version: 5.1
The Service Guide was written mainly for engineers.
Please Do Not reproduce and duplicate.

HiTi Digital S400 Specifications

General

Brand	HiTi Digital
Model	S400
Category	Printer
Language	English

Summary

Chapter 1: Overview

1-1 Overview

Introduces the HiTi Photo Printer S4XX SERIES, its features, and operation modes.

1-2 Specifications

Details the technical specifications of the HiTi Photo Printer S4XX SERIES.

1-3 S4xx Series Differential

Lists parts and their corresponding part numbers for S400 and S420 models.

Chapter 2: Theory of Operation

2-1 Dye Diffusion Thermal Transfer (D2T2)

Explains the D2T2 printing technology used in the printer.

2-2 Hardware

Introduces the hardware components of the printer.

2-2-1 Thermal Print Head (TPH)

Describes the Thermal Print Head (TPH) as a key component of D2T2 printers.

2-2-2 Main Board & ASIC

Details the Main Board and its ASIC, including its functions and memory sockets.

2-2-3 Power Board

Explains the Power Board, its inputs/outputs, and its role in adjusting THP voltage.

2-2-4 TPH Board

Describes the TPH Boards (L and R) connecting sensors, fan, and TPH to the motherboard.

2-2-5 Controller Board

Details the Controller Board, its CPU, EPROM, and function in central control.

2-2-6 Cam Motor

Explains the Cam Motor's function in controlling platen and pinch roller positions.

2-2-7 Capstan Motor

Describes the Capstan Motor's role in paper movement and ribbon rewinding.

2-2-8 Ribbon/ ADF Motor

Explains the Ribbon/ ADF Motor's function in feeding paper and advancing the ribbon.

2-2-9 Status/ Error LED

Describes the Status/ Error LED and its indication of printer status and errors.

2-2-10 Cam Sensor

Details the Cam Sensor's function in detecting platen roller positions.

2-2-11 Leading Edge (LE) Sensor, Jam Sensor and Back Door Sensor

Explains the LE Sensor, Jam Sensor, and Back Door Sensor for paper and door status.

2-2-12 Ribbon LED/ Ribbon Sensor

Describes the Ribbon LED and Sensor for detecting ribbon color and type.

2-2-13 Ribbon Cassette Sensor

Explains the Ribbon Cassette Sensor for detecting ribbon cassette status and type.

2-2-14 Ribbon Door Sensor

Details the Ribbon Door Sensor for detecting if the ribbon door is open or closed.

2-2-15 Fan

Explains the Fan's role in reducing the temperature of the Thermal Print Head (TPH).

2-3 Mechanism

Introduces the mechanical components of the printer.

2-3-1 Introduction

Shows the printer profile and identifies user-accessible components like Door Button and Paper Cassette.

2-3-2 Transmission

Explains the three motors (ADF, Capstan, Cam) used for driving the ribbon, paper, and cam position.

2-3-3 Paper Take-up Section Drive Mechanism

Details the mechanism for feeding paper from the cassette to the printer.

2-3-4 Ribbon Take-up Section Drive Mechanism

Explains the mechanism responsible for rotating the ribbon.

2-3-5 Paper Movement Mechanism

Describes how the Capstan Motor drives paper movement, including forward, backward, and exit.

2-3-6 Platen Position and Pinch Separation Mechanism

Explains how gear sets and cams control platen and pinch roller positions.

2-4 Firmware

Covers firmware updates and initialization processes.

2-4-1 Firmware Update

Guides on updating the printer's firmware using BurnFW.exe.

2-4-2 Initialization

Describes the printer's initialization process upon power-on.

2-4-3 Error Messages

Lists error messages indicated by the Status LED and their solutions.

Chapter 3: Disassembly

3-1 Safety Instructions

Provides essential safety precautions before disassembling the printer.

3-2 Tools

Lists the necessary tools for disassembly.

3-3 Do not Disassemble these Parts

Identifies parts that should not be disassembled due to calibration requirements.

3-4 Disassembly List

Provides a comprehensive list of parts that can be disassembled.

3-4-1 Controller Board and Controller Cable

Details the disassembly of the Controller Board and its cable.

3-4-2 Ribbon Door and Case front

Explains how to disassemble the ribbon door and front case.

3-4-3 Case Back

Details the procedure for removing the back case of the printer.

3-4-4 Power Board and Sheet_Power_Board

Guides on disassembling the Power Board and Sheet_Power_Board.

3-4-5 Main Board

Details the process of removing the Main Board.

3-4-6 TPH Board, Fan and Ribbon LED_B

Explains disassembly of TPH Boards, Fan, and Ribbon LED_B.

3-4-7 ADF Motor, Cam Motor and Capstan Motor

Details the removal of ADF, Cam, and Capstan Motors.

3-4-8 Status LED

Guides on disassembling the Status LED.

3-4-9 Cam Sensor

Explains the procedure for removing the Cam Sensor.

3-4-10 Cover Open Sensor

Details the disassembly of the Cover Open Sensor.

3-4-11 Jam Sensor

Guides on removing the Jam Sensor.

3-4-12 Ribbon Sensor_B, LE Sensor and Tray Front

Explains the removal of Ribbon Sensor_B, LE Sensor, and Tray Front.

3-4-13 Cassette Sensor and Ribbon Sensor_F

Details the disassembly of Cassette Sensor and Ribbon Sensor_F.

3-4-14 Capstan Roller and Pinch Roller

Guides on removing the Capstan Roller and Pinch Roller.

3-4-15 TPH

Details the procedure for removing and assembling the Thermal Print Head (TPH).

3-4-16 TQL

Explains the disassembly and removal of the TQL component.

Chapter 4: Adjustments

4-1 Safety Instructions

Provides safety precautions for performing adjustments.

4-2 Tools

Lists the tools required for performing adjustments.

4-3 VR on Main Board

Details how to adjust VR on the Main Board for voltage output.

4-4 VR on Power Board

Guides on adjusting VR on the Power Board for voltage and color density.

4-5 Cam Position

Explains how to re-adjust and re-align gears for cam/platen errors.

Chapter 5: ECR/ECN of S420 LCD Modification

ECR/ECN Descriptions

Describes ECR/ECN changes related to S420 LCD and Controller Board compatibility.

Chapter 6: Contact Information

Contact Information

Provides contact details for HiTi Digital in various regions.