– 87 –
TROUBLESHOOTING
2-6. Control Panel Displays the Error Message “CLOSE COVER”
Step
Check
Measure
YES
NO
1
Is the front cover assy closed?
2
Check parts with different specifications for problems with
usage, defective installation, breakage, and deformation.
•
Main parts to be checked:
(1) MCU PCB, (2) LVPS assy, (3) Link assy
3
(Check link assy)
With the link assy, check to see that the interlock switch on the
LVPS assy is turned on when the front cover assy is closed, and
turned off when the front cover assy is opened.
4
(Check interlock switch on LVPS assy)
Is the interlock switch functioning normally?
2-7. Control Panel Displays the Error Message “PAPER JAMMING”
Step
Check
Measure
YES
NO
1
Check parts with different specifications for problems with
usage, defective installation, breakage, deformation, and adhe-
sion of foreign matter.
•
Main parts to be checked:
(1) Inlet chute assy, (2) Regi. sensor, (3) Lower chute assy
(4) BTR assy, (5) Take away roll assy, (6) Exit sensor
(7) Exit actuator, (8) Fuser assy, (9) Pick up roll assy
(10) Pick up solenoid, (11) Bottom plate assy, (12) Link assy
(13) Trans. chute assy, (14) MCU PCB, (15) Drive assy
(16) EPX toner cartridge, (17) Paper cassette
(18) Feeder assy, (19) Optional feeder unit
(20) Top cover assy, (21) Harness assy sensor
(22) LVPS assy, (23) Front cover assy
2
Does the problem occur when the power supply is turned on?
3
(Check main motor)
Is the main motor rotating normally?
4
(Check drive assy)
Are the various gears of the drive assy rotating normally?
•
Rotate the main motor gears by hand to check them.
5
(Check exit roll assy rotation)
Are the exit roll assy of the fuser assy and the pinch roller of the
fuser cover assy rotating normally?
•
Rotate the main motor gears by hand to check them.
6
(Check take away roll assy)
Is the take away roll assy rotating normally?
With the fuser assy and EPX toner cartridge removed, rotate the
main motor gears by hand to check them.
To step 2
To step 3
To step 4
Replace MCU
PCB.
Close the assy.
Replace or
reinstall.
Replace link assy.
To section 3-2
To step 2
To step 22
To step 4
To step 5
To step 6
To step 7
Replace or
reinstall.
To step 3
To section 3-17
Replace drive
assy.
Replace fuser
assy.
Replace take away
roll assy.
Содержание LS-5 SERIES
Страница 1: ...LASER PRINTER LS 5 SERIES TECHNICAL MANUAL SECOND EDITION ...
Страница 4: ... 2 GENERAL SPECIFICATIONS ...
Страница 6: ... 2 GENERAL SPECIFICATIONS ...
Страница 14: ... 10 THEORY OF OPERATION ...
Страница 20: ... 16 THEORY OF OPERATION Figure 2 5 Cassette Feed ...
Страница 22: ... 18 THEORY OF OPERATION Figure 2 6 Paper Transportation ...
Страница 25: ... 21 THEORY OF OPERATION Figure 2 8 Drive Figure 2 9 ROS Assy Figure 2 10 EPX Toner Cartridge ...
Страница 28: ...REPLACEMENT AND ADJUSTMENTS OF PARTS 24 ...
Страница 56: ... 52 MAINTENANCE GUIDE ...
Страница 84: ... 80 TROUBLESHOOTING ...
Страница 136: ... 2 GENERAL SPECIFICATIONS ...
Страница 140: ... 136 2 Cassette Feed 2 1 Disassembly Drawing ...
Страница 142: ... 138 3 Paper Transportation 3 1 Disassembly Drawing ...
Страница 144: ... 140 4 Fusing Paper Exit 4 1 Disassembly Drawing ...
Страница 146: ... 142 5 Drive Photographics 5 1 Disassembly Drawing ...
Страница 148: ... 144 6 Electrical 6 1 Disassembly Drawing ...
Страница 151: ... 147 7 Optional Feeder Unit 250 7 1 Disassembly Drawing ...
Страница 153: ... 149 8 Optional Feeder Unit 500 8 1 Disassembly Drawing ...
Страница 158: ... 154 10 Main Logic Board LS 5EX TT 10 1 Circuit Diagram Title BLOCK DIAGRAM ...
Страница 159: ... 155 Main Logic Board LS 5EX TT 1 10 Title CPU BLOCK 1 ...
Страница 160: ... 156 Main Logic Board LS 5EX TT 2 10 Title G A BLOCK 2 ...
Страница 161: ... 157 Main Logic Board LS 5EX TT 3 10 Title RAM BLOCK 3 ...
Страница 162: ... 158 Main Logic Board LS 5EX TT 4 10 4Title ROM BLOCK ...
Страница 163: ... 159 Main Logic Board LS 5EX TT 5 10 Title ENGINE I F BLOCK 5 ...
Страница 164: ... 160 Main Logic Board LS 5EX TT 6 10 6Title FONT CART CN BLOCK ...
Страница 165: ... 161 Main Logic Board LS 5EX TT 7 10 Title CENT I F BLOCK 7 ...
Страница 166: ... 162 Main Logic Board LS 5EX TT 8 10 Title SERIAL I F BLOCK 8 ...
Страница 167: ... 163 Main Logic Board LS 5EX TT 9 10 9Title EXROM BLOCK ...
Страница 168: ... 164 Main Logic Board LS 5EX TT 10 10 10 Title POWER BLOCK ...
Страница 169: ... 165 10 2 Component Layout Parts Side ...
Страница 170: ... 166 10 2 Component Layout Solder Side ...
Страница 174: ... 170 11 Main Logic Board LS 5 11 1 Circuit Diagram Title BLOCK DIAGRAM ...
Страница 175: ... 171 Main Logic Board LS 5 1 7 Title CPU BLOCK 1 ...
Страница 176: ... 172 Main Logic Board LS 5 2 7 Title G A BLOCK 2 ...
Страница 177: ... 173 Main Logic Board LS 5 3 7 Title RAM BLOCK 3 ...
Страница 178: ... 174 Main Logic Board LS 5 4 7 4Title ROM BLOCK ...
Страница 179: ... 175 Main Logic Board LS 5 5 7 Title CARTRIDGE BLOCK 5 ...
Страница 180: ... 176 Main Logic Board LS 5 6 7 6Title PARALLEL SERIAL IF BLOCK ...
Страница 181: ... 177 Main Logic Board LS 5 7 7 Title PANEL EET ENGINE IF BLOCK 7 ...
Страница 182: ... 178 11 2 Component Layout Parts Side ...
Страница 183: ... 179 11 2 Component Layout Solder Side ...
Страница 186: ... 182 12 ROM Board MS 12 1 Circuit Diagram Title BLOCK DIAGRAM ...
Страница 187: ... 183 ROM Board MS 1 2 Title CONNECTOR DECODE BLOCK 1 ...
Страница 188: ... 184 ROM Board MS 2 2 Title ROM BLOCK 2 ...
Страница 189: ... 185 12 2 Component Layout Parts side Solder side ...
Страница 191: ... 187 13 RAM Board 13 1 Circuit Diagram Title RAM BOARD ...
Страница 192: ... 188 13 2 Component Layout Parts side ...
Страница 194: ... 190 14 RAM Module 1MB 14 1 Circuit Diagram ...
Страница 196: ... 192 15 RAM Module 2MB 15 1 Circuit Diagram ...
Страница 198: ... 194 16 Font Cartridge 16 1 Circuit Diagram ...
Страница 199: ... 195 16 2 Component Layout Parts side ...
Страница 203: ... 2 GENERAL SPECIFICATIONS ...