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H1
Fixing Heater
Safety Circuit
FREQSNS
Fixing Film
Fixing Assembly
Pressure Roller
FSRD
RLYD
FSRTH
+24V
Low Voltage Power Supply Unit
Fixing Control Circuit
RL101
DC Controller PCB
Fixing Heater
Control Circuit
Relay Control
Circuit
Frequency Detection
Circuit
AC Input
H1:
Fixing Heater
TP1:
Thermoswitch
TH1:
Thermistor
TP1
TH1
Protection Function
Overview
This machine has a function to detect abnormal temperature rising in the Fixing Assembly and cut off the power supply to the
Fixing Heater.
Description
This machine has the following four protection functions to prevent abnormal temperature rising in the Fixing Heater.
• DC Controller PCB
• Fixing Heater safety circuit
• Thermo Switch
• Down sequence control
The details are explained below.
2. Technical Explanation (Device)
34
Summary of Contents for imageCLASS X LBP1238
Page 11: ...Safety Precautions Laser 2 Power Supply Lithium Battery 2 Toner Safety 3 Notes on works 3...
Page 15: ...Product Overview 1 Product Lineup 6 Features 8 Specifications 9 Parts Name 12...
Page 78: ...Periodical Service 4 Periodically Replaced Parts 69 Consumable Parts 70 Periodical Services 71...
Page 80: ...Consumable Parts This machine does not have any consumable parts 4 Periodical Service 70...
Page 96: ...1 2 1x 3 100 mm 5 Parts Replacement and Cleaning 86...
Page 105: ...2 3x 1x 3 3x 4 1x 2x 5 Parts Replacement and Cleaning 95...
Page 106: ...5 3x 6 7 3x 5 Parts Replacement and Cleaning 96...
Page 109: ...3 2x 4 5 2x 1x 5 Parts Replacement and Cleaning 99...
Page 110: ...6 7 8 2x 1x 2x 5 Parts Replacement and Cleaning 100...
Page 122: ...Procedure 1 1x 9x 4x 1x 5 Parts Replacement and Cleaning 112...
Page 134: ...3 4 5 2x 6 5 Parts Replacement and Cleaning 124...
Page 136: ...Adjustment 6 Actions at Parts Replacement 127...
Page 153: ...Error Jam Alarm 8 Overview 144 Error Code 148 Jam Code 154 Alarm Code 156...