Jack JK-T781E Series User Manual

JK-T781E series

Jack JK-T781E Series Specifications

General

Brand	Jack
Model	JK-T781E Series
Category	Sewing Machine
Language	English

Summary

Technical Parameters and Models

Adjust Needle and Hook (Method 1)

Adjust Needle Bar Height

Adjust Needle and Hook (Method 2)

Adjust Buttonhole Width and Stitching Position

Adjust Feeding Control Panel Position

Adjust Button Hole Length

Adjust Lower Line Fixed Knife Position

Adjust Automatic Foot-Lift Sensor Chip

Adjust Feeding Sensor

Parameters and Fault Codes

Operation Button Functions

Describes the function of the Enter and F keys for parameter modes.

LED Display Script Comparison

Compares actual digital values with LCD display for digits.

LCD Screen Display Mode

Shows LCD display for English alphabet characters.

Factory Reset Procedure

Steps to perform a factory reset on the machine.

User Mode Parameter Modification

Guide to entering user mode and modifying/saving parameters.

Technician Mode Access

Guide to entering technician mode for adjustments.

System Officer Mode Access

Steps to access system officer mode for specific items.

Manual Up Positioning Adjustment

Procedure for manual up positioning adjustment.

User Parameters (P01-P10)

Details of user-configurable parameters.

User Parameters (P16-P29)

Details of user-configurable parameters.

Error Codes and Solutions

Lists error codes and their corresponding solutions.

Error Codes and Solutions (Continued)

Continues the list of error codes and their solutions.