Minolta EP1052 Specifications Page 120
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- TROUBLESHOOTING
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT
96.11.01
D-1
1139SBD0100A
SERVICE INSTRUCTIONS1
1151SBD0101A
1-1. PRECAUTIONS FOR DISASSEMBLY/ADJUSTMENTS
Observe the following precautions whenever servicing the copier.
D Be sure to unplug the copier from the outlet before attempting to service the copier.
D The basic rule is not to operate the copier anytime during disassembly.
If it is absolutely necessary to run the copier with its covers removed, use care not to allow your clothing
to be caught in revolving parts such as the timing belt and gears.
D Be sure to use the Interlock Switch Actuating Jig whenever it is necessary to actuate the Interlock Switch
with the covers left open or removed.
D Do not plug in or unplug print jacks on the Board or connect or disconnect the Board connectors while
power is being supplied to the copier.
D Do not use flammable spray around the copier in operation.
D The Magnet Roller of the Imaging Unit generates strong magnetic force. Do not bring it near a cathode-ray
tube or watch.
D The lithium cell in RAM Board PWB-R can burst. At replacement, make sure of the correct polarity and
do not change it or create a closed circuit.
A used lithium cell should be disposed of according to the local regulations and never be discarded casual-
ly or left unattended at the user’s premises.
D Do not use an air gun or vacuum cleaner for cleaning the ATDC Sensor and other sensors, as they can
cause electrostatic destruction. Use a blower brush and cloth. If a unit containing these sensors is to be
cleaned, first remove the sensors from the unit.
D When handling the PWBs with MOS ICs, observe “Instructions for Handling the PWBs with MOS ICs.”
D When handling the PC Drum, observe precautions given in “Handling of the PC Drum.”
D Note that replacement of a PWB may call for readjustments or resetting of particular items.
D Use the right screw in the right place at reassembly. Note that some are longer and some are thicker than
others.
D A toothed washer is used with the screw that secures the ground wire to ensure positive conduction. Do
not forget to insert this washer at reassembly.
D To reassemble the copier, reverse the order of disassembly unless otherwise specified.
D If it becomes necessary to replace the thermal fuse or any other fuse mounted on a board, be sure to use
one of the rating marked on the blown fuse.
Always note the rating marked on the fuse, as the rating and mounting site or number used are subject
to change without notice.
D Do not pull out the Toner Hopper while the Toner Bottle is turning, as a damaged Toner Replenishing Motor
or locking mechanism could result.
If the copier is to be run with the Front Door swung down, make sure that the Toner Hopper is in the locked
position.
CAUTION: DANGER OF EXPLOSION IF BATTERY IS INCORRECTLY REPLACED. REPLACE
ONLY WITH THE SAME OR EQUIVALENT TYPE RECOMMENDED BY THE MANUFACTURER.
DISCARD USED BATTERIES ACCORDING TO THE MANUFACTURER’S INSTRUCTIONS.
- GENERAL 1
- MECHANICAL/ 1
- ELECTRICAL 1
- SAFETY INFORMATION 5
- SPECIFICATIONS1 7
- L: Lengthwise; C: Crosswise 8
- PRECAUTIONS FOR INSTALLATION2 10
- PRECAUTIONS FOR USE3 11
- HANDLING OF THE CONSUMABLES4 12
- SYSTEM OPTION5 13
- CROSS-SECTIONAL VIEW1 15
- COPY PROCESS2 16
- DRIVE SYSTEM3 18
- SEQUENTIAL EXPLANATION4 19
- Fusing Heater Lamp H1 20
- D The Start Key is pressed 21
- E Paper is taken up 21
- F A scan motion is completed 22
- PC DRUM5 24
- IMAGING UNIT6 25
- 6-1. Imaging Unit Drive 26
- Toner Recycling Path 27
- Toner Supply Port 27
- Toner Recycling Coil 27
- Bevel Gears 27
- DEVELOPMENT7 28
- Magnet Roller 32
- Bias Terminal 32
- CLEANING UNIT8 34
- 8-1. Cleaning Bias 35
- TONER HOPPER9 36
- 9-5. Toner Bottle Vibration 38
- DRUM CHARGING10 40
- IMAGE ERASE LAMP11 41
- :ON; y:OFF 42
- LA3 PWB-A PJ17A-4 ~ 9 L H 2-F 43
- OPTICAL SECTION12 44
- Auxiliary Reflector 47
- Main Reflector 47
- Exposure Lamp LA1 47
- Aperture Plate 47
- M7 PWB-A PJ16A-2 L H 19-I 50
- PC86 PWB-A PJ20A-2 L H 20-M 50
- M6 PWB-A PJ16A-1 L H 19-I 51
- PC90 PWB-A PJ20A-5 L H 20-M 51
- MAIN ERASE LAMP14 52
- PAPER SEPARATOR FINGERS16 55
- SL1 PWB-A PJ14A-2 L H 14-A 56
- PAPER TAKE-UP/FEED SECTION17 57
- Trailing Edge Stop Edge Guide 58
- Lock Lever 58
- Drawer Side 58
- <Control> 60
- 1158SBM1705A 61
- 1151M003AA 61
- Paper Take-Up Roll 63
- Separator Finger 63
- SL2 PWB-A PJ7A-9 L H 25-C 65
- PC55 PWB-A PJ7A-2 H L 25-B 65
- VERTICAL PAPER TRANSPORT18 66
- SYNCHRONIZING ROLLERS19 67
- CL1 PWB-A PJ6A-4 L H 2-N 69
- PC54 PWB-A PJ18A-2 L H 14-D 69
- PAPER TRANSPORT20 70
- FUSING UNIT21 71
- EXIT UNIT22 74
- 22-2. Paper Exit Sensor 75
- D H2, H3 ON/OFF Conditions 76
- Feed Roll 80
- Separator Roll 80
- 25-3. Paper Empty Detection 81
- COOLING FAN27 82
- OPTICAL SECTION COOLING FAN28 83
- MEMORY BACKUP29 84
- EP1052_GM 85
- SWITCHES ON PWBs/ 86
- TECH. REP. SETTINGS 86
- 1151SBS0100A 88
- 1151SBS0101A 88
- 1151SBS0102A 88
- 1158SBS0200A 89
- 3-1. PWB Location 91
- USER MODE4 93
- [User Mode] 94
- SERVICE MODE5 96
- 1151SBS0502A 97
- [Service Mode " Test] 98
- 2. Tech. Rep. Choice 100
- 1158SBS050303A 104
- 4. Paper Size Counter 105
- 5. Misfeed Counter 105
- 6. Malfunction Counter 106
- 1158SBS050307A 107
- 8. Display 108
- [Service Mode " Display] 108
- ADJUST MODE6 109
- 1151SBS0603A 110
- 1151SBS0700A 112
- EP1052_S 113
- MINOLTA CO., LTD 113
- DIS/REASSEMBLY 114
- ADJUSTMENT 114
- 1151SBD0000A 115
- CONTENTS 117
- SERVICE INSTRUCTIONS1 120
- 1-3. HANDLING OF THE PC DRUM 121
- (1) Screws 123
- (3) Other Screws 123
- DISASSEMBLY/REASSEMBLY2 124
- 2-2. REMOVAL OF PWBs 127
- 2-3. BELT INSTALLATIONS 129
- 1158D021AA 130
- 1142D007AA 130
- 1158D024AA 130
- 1158D022AA 130
- 1158D023AA 130
- 1151D029AA 131
- 1151D030AA 131
- 1151D004AA 131
- 1151D005AA 132
- 1151D006AA 132
- 1151D009AA 132
- 1151D018AA 134
- 2-5. OPTICAL SECTION 137
- 1151D032AA 140
- 1151D033AA 142
- (5) Removal of the Scanner 143
- 2-6. Imaging Unit 145
- 1151D034AA 149
- 1151D035AA 149
- 1151D036AA 150
- 1151D037AA 151
- 2-8. Fusing Unit 153
- 1151D011AA 155
- 1151D012AA 155
- 1151D013AA 155
- 1151D014AA 155
- 1151D039AA 156
- 96.11.01 158
- 2. Remove the front bushing 158
- ADJUSTMENT3 159
- 3-3. ADJUSTMENT OF SWITCHES 161
- Microswitches 161
- 1139D270AA 166
- <OPTION> 170
- Full Size 172
- Enlargement 174
- Reduction 175
- 3-5. OTHER ADJUSTMENTS 179
- MISCELLANEOUS4 182
- EP1052_D 183
- TROUBLESHOOTING 184
- INTRODUCTION1 187
- I/O PORT CHECK2 188
- 2-2. Port Check List 190
- (Copier) 190
- PAPER TRANSPORT FAILURE3 193
- 1158SBT030101A 196
- 1-2. Copier Take-Up Misfeed 197
- 1-3. Bypass Port Misfeed 200
- 1158SBT030104A 202
- 1151C24TAA 202
- 1-5. Fusing/Exit Misfeed 205
- 2. Wrinkles in Paper 207
- 3. Double Feed 207
- 4. Skewed Feed 208
- MALFUNCTIONS4 209
- 1151SBT040101A 211
- 1151C18TAA 211
- 1151SBT040102A 213
- 1151C17TAA 213
- 1151C16TAA 215
- 1151SBT040103A 215
- 1151SBT040104A 217
- 1151C09TAA 217
- 1151SBT040105A 219
- 1151C03TAA 219
- 1151SBT040106A 221
- 1151C14TAA 221
- C0610: Lens Motor malfunction 223
- 1158SBT040084A 225
- 1151C10TAA 225
- 1158SBT040109A 227
- 2. Power is not Turned ON 229
- 3. E1, E2 231
- EP1052_T 233
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