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Brother P-Touch QL-570 User Manual

Brother P-Touch QL-570
122 pages
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P-touch
SERVICE MANUAL
MODEL: QL-570

Table of Contents

Questions and Answers:

Brother P-Touch QL-570 Specifications

General IconGeneral
Print TechnologyDirect Thermal
CutterAutomatic
InterfaceUSB
Operating System CompatibilityWindows, Mac
Label Types SupportedDie-cut, Continuous
Power SourceAC Adapter
Max Print Width2.3 inches
Maximum Label Length3 feet
Print Speed68 labels/min
Label WidthUp to 2.4"

Summary

Brother P-touch QL-570 Service Manual

Printing Mechanism and Speed

Explains the direct thermal printing method and print head specifications.

Theory of Operation: Mechanisms and Electronics

Outline of Mechanisms

Provides an overview of the printer's mechanical components and their functions.

Print Mechanism Explained

Explains the direct thermal printing system and thermal head operation.

Tape Feed Mechanism Operation

Explains how the tape is fed through the printer using a step motor and gears.

Automatic Tape Cutter Mechanism

Describes the mechanism for automatically cutting the tape using a moving cutter blade.

Outline of Control Electronics

Details the control electronics and their constituent components.

Main PCB Components Overview

Details the components and block diagram of the main PCB.

Disassembly and Reassembly Procedures

Safety Precautions for Service

Lists essential safety precautions to be followed during disassembly and reassembly.

Tightening Torque Lists

Provides a list of specific tightening torque values for various screws.

Disassembly Steps

Outlines the step-by-step procedure for disassembling the printer.

Removing the Top Cover and Thermal Tape

Step-by-step guide to remove the top cover and thermal tape from the printer.

Removing the Front Cover and Tray S

Step-by-step guide to remove the front cover and tray S.

Reassembly Procedures

Details the step-by-step procedure for reassembling the printer.

Troubleshooting and Error Messages

Troubleshooting Precautions

Lists precautions to prevent secondary problems during troubleshooting.

LED Status and Error Countermeasures

Explains LED states for different situations and error countermeasures.

Printer Error Messages

Lists error messages and their corresponding advice for resolution.

Troubleshooting Flows

Provides diagnostic flowcharts for common printer issues.

Printing with Missing Dots

Troubleshooting flowchart for issues with missing dots during printing.

Tape Not Detected Correctly

Troubleshooting flowchart for incorrect tape detection.

LED Does Not Turn On

Troubleshooting flowchart for when the LED does not turn on.

No Printing Performed

Troubleshooting flowchart for when no printing is performed.

Interface Malfunction Troubleshooting

Troubleshooting flowchart for interface malfunctions.

Tape Not Cut Correctly

Troubleshooting flowchart for when the tape is not cut.

Tape Not Fed Correctly

Troubleshooting flowchart for incorrect tape feeding.

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