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MAINTENANCE GUIDE
1.
Preventive Maintenance
1-1. Preventive Maintenance
Operations to prevent failure are performed during service.
Preventive Maintenance Procedure:
(1)
Check for the operating status of the printer.
(2)
Record the accumulated number of printed sheets.
Note: Use the number as a standard for replacing recommended renewal parts.
The accumulated number of printed sheets can be obtained by “Page count” printed in “Status and Setup
Report” by operating the control panel.
(3)
Print several sheets to ensure normal operation.
(4)
Remove the trans. chute assy and clean the eliminator with a brush, etc..
(5)
Clean the paper transport path and rolls for transporting paper with a brush and dry waste.
Note: When the parts are considerably dirty, clean with a wet cloth (waste) and then with a dry cloth (waste).
Do not touch the BTR surface of the BTR assembly.
(6)
Cleaning the air exit of the fan.
Remove the right cover and brush off dust on the air exit areas of the fan and the right cover.
Note: Clogging in the air exits may result in temperature rise in the printer, causing failure.
(7)
Reprint several sheets to ensure normal operation.
1-2. Consumables
Consumables are to be replaced by customers, while they may be replaced to fix the failure caused by consumables or
to locate the cause of failure.
•
EPX toner cartridge:
Its life standard is printing approx. 8000 sheets of paper of A4 size at an image coverage of 2.8%.
Note: Even with A4 size paper and an image coverage of 2.8%, the number of paper to print, a standard of the life of the
EPX toner cartridge, may vary according to the sensitivity of the drum itself and image contents.
Do not remove the EPX toner cartridge from its packaging until you are ready to use it. The shelf life of an unopened
cartridge package is 2 years of storage plus usage in the normal condition.
1-3. Parts Replacement Schedule
It is recommended that recommended renewal parts be replaced for each predetermined number of sheets to print for
failure preventive purposes.
Fuser assy (number of sheets to print for recommended renewal of parts: 100,000)
Summary of Contents for LS-5 SERIES
Page 1: ...LASER PRINTER LS 5 SERIES TECHNICAL MANUAL SECOND EDITION ...
Page 4: ... 2 GENERAL SPECIFICATIONS ...
Page 6: ... 2 GENERAL SPECIFICATIONS ...
Page 14: ... 10 THEORY OF OPERATION ...
Page 20: ... 16 THEORY OF OPERATION Figure 2 5 Cassette Feed ...
Page 22: ... 18 THEORY OF OPERATION Figure 2 6 Paper Transportation ...
Page 25: ... 21 THEORY OF OPERATION Figure 2 8 Drive Figure 2 9 ROS Assy Figure 2 10 EPX Toner Cartridge ...
Page 28: ...REPLACEMENT AND ADJUSTMENTS OF PARTS 24 ...
Page 56: ... 52 MAINTENANCE GUIDE ...
Page 84: ... 80 TROUBLESHOOTING ...
Page 136: ... 2 GENERAL SPECIFICATIONS ...
Page 140: ... 136 2 Cassette Feed 2 1 Disassembly Drawing ...
Page 142: ... 138 3 Paper Transportation 3 1 Disassembly Drawing ...
Page 144: ... 140 4 Fusing Paper Exit 4 1 Disassembly Drawing ...
Page 146: ... 142 5 Drive Photographics 5 1 Disassembly Drawing ...
Page 148: ... 144 6 Electrical 6 1 Disassembly Drawing ...
Page 151: ... 147 7 Optional Feeder Unit 250 7 1 Disassembly Drawing ...
Page 153: ... 149 8 Optional Feeder Unit 500 8 1 Disassembly Drawing ...
Page 158: ... 154 10 Main Logic Board LS 5EX TT 10 1 Circuit Diagram Title BLOCK DIAGRAM ...
Page 159: ... 155 Main Logic Board LS 5EX TT 1 10 Title CPU BLOCK 1 ...
Page 160: ... 156 Main Logic Board LS 5EX TT 2 10 Title G A BLOCK 2 ...
Page 161: ... 157 Main Logic Board LS 5EX TT 3 10 Title RAM BLOCK 3 ...
Page 162: ... 158 Main Logic Board LS 5EX TT 4 10 4Title ROM BLOCK ...
Page 163: ... 159 Main Logic Board LS 5EX TT 5 10 Title ENGINE I F BLOCK 5 ...
Page 164: ... 160 Main Logic Board LS 5EX TT 6 10 6Title FONT CART CN BLOCK ...
Page 165: ... 161 Main Logic Board LS 5EX TT 7 10 Title CENT I F BLOCK 7 ...
Page 166: ... 162 Main Logic Board LS 5EX TT 8 10 Title SERIAL I F BLOCK 8 ...
Page 167: ... 163 Main Logic Board LS 5EX TT 9 10 9Title EXROM BLOCK ...
Page 168: ... 164 Main Logic Board LS 5EX TT 10 10 10 Title POWER BLOCK ...
Page 169: ... 165 10 2 Component Layout Parts Side ...
Page 170: ... 166 10 2 Component Layout Solder Side ...
Page 174: ... 170 11 Main Logic Board LS 5 11 1 Circuit Diagram Title BLOCK DIAGRAM ...
Page 175: ... 171 Main Logic Board LS 5 1 7 Title CPU BLOCK 1 ...
Page 176: ... 172 Main Logic Board LS 5 2 7 Title G A BLOCK 2 ...
Page 177: ... 173 Main Logic Board LS 5 3 7 Title RAM BLOCK 3 ...
Page 178: ... 174 Main Logic Board LS 5 4 7 4Title ROM BLOCK ...
Page 179: ... 175 Main Logic Board LS 5 5 7 Title CARTRIDGE BLOCK 5 ...
Page 180: ... 176 Main Logic Board LS 5 6 7 6Title PARALLEL SERIAL IF BLOCK ...
Page 181: ... 177 Main Logic Board LS 5 7 7 Title PANEL EET ENGINE IF BLOCK 7 ...
Page 182: ... 178 11 2 Component Layout Parts Side ...
Page 183: ... 179 11 2 Component Layout Solder Side ...
Page 186: ... 182 12 ROM Board MS 12 1 Circuit Diagram Title BLOCK DIAGRAM ...
Page 187: ... 183 ROM Board MS 1 2 Title CONNECTOR DECODE BLOCK 1 ...
Page 188: ... 184 ROM Board MS 2 2 Title ROM BLOCK 2 ...
Page 189: ... 185 12 2 Component Layout Parts side Solder side ...
Page 191: ... 187 13 RAM Board 13 1 Circuit Diagram Title RAM BOARD ...
Page 192: ... 188 13 2 Component Layout Parts side ...
Page 194: ... 190 14 RAM Module 1MB 14 1 Circuit Diagram ...
Page 196: ... 192 15 RAM Module 2MB 15 1 Circuit Diagram ...
Page 198: ... 194 16 Font Cartridge 16 1 Circuit Diagram ...
Page 199: ... 195 16 2 Component Layout Parts side ...
Page 203: ... 2 GENERAL SPECIFICATIONS ...