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Kyocera FS-1030D [54/140] 5 3 image formation problems
![Kyocera FS-1030D [54/140] 5 3 image formation problems](/views2/1163790/page54/bg36.png)
2G6
1-5-12
1-5-3 Image formation problems
(1) No image appears
(entirely white).
See page 1-5-13
(2) No image appears
(entirely black).
See page 1-5-13
(3) Image is too light.
See page 1-5-13
(4) Background is visible.
See page 1-5-14
(5) A white line appears
longitudinally.
See page 1-5-14
(6) A black line appears
longitudinally.
See page 1-5-15
(7) A black line appears
laterally.
See page 1-5-15
(8) One side of the print
image is darker than
the other.
See page 1-5-15
(9) Black dots appear on
the image.
See page 1-5-16
(10)Image is blurred.
See page 1-5-16
(11)Paper creases.
See page 1-5-16
(12)Offset occurs.
See page 1-5-17
(14)Fixing is poor.
See page 1-5-17
(13)Image is partly missing.
See page 1-5-17
Содержание
- Fs 1030d 1
- Service manual 1
- Revision history 2
- Safety precautions 3
- Safety warnings and precautions 4
- Installation precautions 5
- Precautions for maintenance 6
- Miscellaneous 7
- 1 specifications 9
- 2 handling precautions 9
- 3 installation 9
- 4 maintenance 9
- 5 troubleshooting 9
- Contents 9
- 1 mechanical construction 10
- 6 assembly and disassembly 10
- 7 upgrading the firmware 10
- 2 electrical parts layout 11
- 3 operation of the pcbs 11
- 4 appendixes 11
- 1 1 specifications 13
- 1 specifications 13
- 1 2 name of parts 15
- 1 overall 15
- 2 operation panel 16
- 1 3 machine cross section 17
- 2 1 process unit drum 19
- 2 2 installation environment 19
- 2 handling precautions 19
- 1 installation procedure 21
- 3 1 unpacking and installation 21
- 3 installation 21
- Ac inlet 26
- Connect the power cord 26
- Connect the printer cable and power cord 26
- Connect the printer cable parallel or usb 26
- Figure 1 3 10 26
- Figure 1 3 11 26
- Power cord 26
- 3 2 installing the expanding memory option 29
- 3 3 installing the memory card option 30
- 3 4 installing the network interface card option 31
- 1 executing service mode 33
- 4 1 maintenance 33
- Controller firmware version released date of the firmware 34
- Description prints a service status page for service purpose the service status page includes various printing settings and service cumulative purpose to acquire the current printing environmental parameters and cumulative information procedure to print a service status page using the go key on the operator panel or have a pc running ms dos and proceed as follows 34
- Figure 1 4 1 status page 34
- Go key prints a user status page press the go key for 3 seconds or more and less than 10 seconds 34
- Pc 1 connect the usb or parallel cable between printer and pc 2 turn printer power on make sure the printer is ready 3 at the dos prompt send the following command to the printer 34
- Printing a service status page 34
- Prints a service status page press the go key for 10 seconds or more 34
- Service information 34
- Service items description 34
- Software version software version released 7 jun 2005 released 7 jun 2005 34
- The service status page is printed if you omit 1 a user status page is printed 34
- 0020 0020 1061 0811 0 0 0 0 0 0 0 0 0 35
- 03030303 03030303 03030303 03000000 00000000 03030303 03030303 03030303 03030303 03030303 03000000 00000000 03030303 03030303 spd1 0203040508090a0b0c0d0f101112131415161718191a1b1c1d1e1f202122235e 35
- 8088808880808000 8088808880808000 8088808880808000 8088808880808000 8088808880808000 8088808880808000 8088808880808000 8088808880808000 8088808880808000 8088808880808000 8088808880808000 8088808880808000 8088808880808000 8088808880808000 8088808880808000 8088808880808000 35
- A 1234567890123456 35
- Eb20ma001 2g6_1000 01 1022 0a03 03 total page 9690 35
- Rs2 1 1 35
- Service information 35
- Sn spl9200010 35
- T p00 s00 u00 f00 n00 35
- 1 8 1 1 37
- Description prints a history list of occurences of paper jam self diagnostics toner replacements etc purpose analyze the failure by determining the cause depending on the history of occurrence procedure 1 connect the usb or parallel cable between printer and pc 2 turn printer power on make sure the printer is ready 3 at the dos prompt send the following command to the printer 37
- Event log will be printed 37
- Figure 1 4 3 event log event log 37
- Printing an event log event log 37
- Service items description 37
- 1 paper misfeed indication 43
- 1 paper misfeed indication if a paper jam occurs while printing the printer notifies it by the following combination of the four indicators remove the jammed paper as described below after removal open and close the top cover once to initialize the jam sensing 43
- 2 paper misfeed detection 43
- 5 1 paper misfeed detection 43
- 5 troubleshooting 43
- Fast flashing 43
- Figure 1 5 1 paper misfeed indication 43
- Figure 1 5 2 43
- 1 self diagnostic function 44
- 1 self diagnostic function service errors are represented by the alternating flashing of the indicators leds each error is represented by the notation of four digits code and can be monitored on the remote operation panel utility e g call service 2000 is for the main motor error 44
- 2 self diagnostic indication 44
- 5 2 self diagnosis 44
- Figure 1 5 3 self diagnostic indication 44
- Check procedures corrective measures 45
- Code error indications contents 45
- Main motor error 45
- Check procedures corrective measures 46
- Code error indications contents 46
- Laser scanner unit polygon motor error 46
- Check procedures corrective measures 47
- Check procedures corrective measures 48
- Code error indications contents 48
- Laser scanner unit pin photo diode error 48
- Check procedures corrective measures 49
- Check procedures corrective measures 50
- Code error indications contents 50
- Fuser unit error 50
- Check procedures corrective measures 51
- Code error indications contents 51
- Waste toner full total page count less than 100 000 pages of printing 51
- Check procedures corrective measures 52
- Code error indications contents 52
- Waste toner full total page count more than 100 000 pages of printing 52
- 5 3 image formation problems 54
- 1 no image appears entirely white 55
- 2 no image appears entirely black 55
- 3 image is too light 55
- 4 background is visible 56
- 5 a white line appears longitudinally 56
- 6 a black line appears longitudinally 57
- 7 a black line appears appears 57
- 8 one side of the print image is darker than the other 57
- 10 image is blurred 58
- 11 paper creases 58
- 9 black dots appear on the image 58
- 12 offset occurs 59
- 13 image is partly missing 59
- 14 fixing is poor 59
- 1 the machine does not operate when the power switch is turned on 60
- 2 the main motor does not operate 60
- 3 cooling fan does not operate 60
- 4 the feed solenoid does not operate 60
- 5 4 electrical problems 60
- 5 the mp feed solenoid does not operate 60
- 10 the heater lamp does not turn off 61
- 11 main charging is not performed 61
- 12 transfer charging is not performed 61
- 6 the registration solenoid does not operate 61
- 7 the switchback solenoid does not operate 61
- 8 the eraser lamp does not turn on 61
- 9 the heater lamp does not turn on 61
- 13 a paper jam in the paper feed or exit section is indicated when the power switch is turned on 62
- 14 the led indicator requesting cover to be closed is displayed when the front cover is closed 62
- 15 others 62
- 1 no primary paper feed 63
- 2 no secondary paper feed 63
- 3 skewed paper feed 63
- 4 multiple sheets of paper are fed at one time 63
- 5 5 mechanical problems 63
- 5 paper jams 63
- 6 abnormal noise is heard 63
- 1 precautions 65
- 6 1 precautions for assembly and disassembly 65
- 6 assembly and disassembly 65
- 6 2 removing the process unit 66
- 1 removing the top cover output tray 67
- 6 3 removing the principal outer covers 67
- 2 removing the right cover 68
- 3 removing the left cover 68
- 6 4 removing the feed roller 69
- 6 5 removing the mp feed roller 70
- Figure 1 6 7 removing the mp feed unit 71
- Figure 1 6 8 removing the mp feed roller 71
- Mp feed roller 71
- Mp feed unit 71
- Remove one screw 7 remove the toner sensor and spring 8 while pressing the latch by using the driver and then remove the paper guide 9 remove two screws and then remove the mp feed unit 71
- Remove one stop ring and then remove the mp feed roller 71
- Stop ring 71
- 6 6 removing the transfer roller 72
- Caution do not touch the transfer roller sponge surface oil and dust particles of paper etc on the transfer roller can significantly deteriorate the print quality white spots etc 72
- Figure 1 6 9 removing the transfer roller 72
- Remove the process unit see page 1 6 2 2 remove the transfer roller from the both bushes 72
- When refitting the bushes and springs make sure to refit the black colored bush and spring on the left side also observe the correct direction to which the bush is fit in reference to the paper passing direction 72
- 1 removing the engine pwb 73
- 6 7 removing the principal pwbs 73
- 2 removing the main pwb 74
- Figure 1 6 12 removing the main pwb 75
- Remove two screws at the back of the main pwb 7 remove three screws from the parallel interface connector and usb connector 8 remove the main pwb 75
- 3 removing the power supply unit and high voltage unit 76
- 4 removing the bias pwb 77
- 6 8 removing the main motor and drive unit 79
- Figure 1 6 18 removing the clutches 81
- Remove the main pwb see page 1 6 10 11 remove one screw and then remove the grounding plate 12 remove one screw and then remove the feed solenoid 13 remove three stop rings 14 remove mp feed clutch gear feed clutch gear and registration clutch gear 81
- 6 9 removing and splitting the fuser unit 83
- 1 removing the separation claws 85
- Figure 1 6 22 removing the separation claws 85
- Remove and split the fuser unit see page 1 6 19 2 loosen the stopper screws 3 hold the separation claw upright and remove the separation claw and separation claw springs 85
- Warning the separation claws are extremely hot immediately after the printer was running allow substantial period of time until it cools down 85
- 2 removing the heater lamp 86
- 3 removing the heat roller 87
- Figure 1 6 25 removing the heat roller 88
- Remove the heat gear z33 heat r bush and heat l bush from the heat roller 88
- 4 removing the fuser thermistor 89
- 5 removing the thermal cutout 90
- 6 removing the press roller 91
- 6 10 removing the laser scanner unit and the eraser lamp 92
- 6 11 removing the main charger unit 95
- Caution when refitting the main charger unit hold terminal down c then push frontwards use care not to deform the terminal 95
- Figure 1 6 32 removing the main charger unit 95
- Remove the process unit from the printer see page 1 6 2 2 unlatch the three snaps and remove the main charger cap 3 draw the main charger unit in the direction of arrow a then pull it out in the direction of arrow b 95
- 1 firmware program data format 97
- 7 1 upgrading the firmware on the main pwb 97
- 7 upgrading the firmware 97
- Figure 1 7 1 firmware program data format 97
- S2g6_3000001021 cmp 97
- System firmware the data to be downloaded are supplied in the following format 97
- Updating the system controller firmware is possible by downloading the firmware through the parallel interface or through the memory card compactflash these firmware programs are directly overwritten in the system dimm flash rom type only on the main pwb the operation panel message in different languages can also be downloaded through the parallel interface or through the memory card 97
- 2 downloading the firmware from the parallel interface 98
- 3 downloading the firmware from the memory card 99
- 4 downloading errors 100
- If the corrective action above does not solve the problem replace the engine pwb k0010 see page 1 6 9 100
- The following downloading errors are indicated on led indicators when an error occurred during downloading the firmware data 100
- 1 1 paper feeding system 101
- 1 mechanical construction 101
- 1 paper feed control 102
- 1 paper feed control the following diagram shows interconnectivity of the feeding system components including the sensors and rollers the engine board provides the signals in conjunction with the electrophotography process that is driven by the main board 102
- Figure 2 1 2 paper feed control 102
- 2 paper feeding mechanism 103
- 3 switchback refeed system 104
- Figure 2 1 5 upper exit roller forward reverse drive mechanism 105
- The forward reverse mechanism for the upper exit roller is composed of the planetary gear assemblies a a 1 a 2 and a 3 and b b 1 b 2 and b 3 a switchback solenoid and a latch lever and it uses the driving force that is transmitted from the main motor to the upper exit roller in order to switch between forward and reverse rotation in the case of 1 sided normal printing the latch to the latch lever catches on gear b 1 thus stopping planetary gear assembly b from functioning this allows planetary gear assembly a to function and a forward driving force is transmitted to the exit roller gear through the idle gear thus causing the upper exit roller to turn in a forward direction however in the case of duplex 2 sided printing the latch lever moves through the operation of the switchback solenoid and catches on gear a 1 thus stopping planetary gear assembly a from functioning this allows planetary gear assembly b to function and a reverse driving force is transmitted to the exit roller gear th 105
- Upper exit roller forward reverse mechanism 105
- 1 2 electrophotographic system 106
- 1 electrophotographic cycle 106
- 1 1 process unit mechanism 107
- 2 1 photo conductive drum 108
- 2 main charging 108
- 2 2 charging the drum 109
- 2 2 charging the drum the following shows a simplified diagram of the electrophotographic components in relation to the engine system charging the drum is done by the main charger unit a 109
- As the drum c rotates in a clean neutral state its photoconductive layer is given a uniform positive corona charge dispersed by the main charger wire b 109
- Due to high voltage scorotron charging the charging wire can get contaminated by oxidization after a long run therefore it must be cleaned periodically from time to time cleaning the charging wire prevents print quality problems such as black streaks 109
- Figure 2 1 9 charging the drum 109
- 3 exposure 110
- 3 1 laser scanner unit 111
- 3 2 drum surface potential 112
- 3 2 drum surface potential the laser beam is continually switched on and off depending on the print data it is on for a black exposed dot and off for a white blank dot since the drum surface is evenly charged whenever it is illuminated by the laser beam the electrical resistance of the photoconductor is reduced and the potential on the photoconductor is also lowered resulted on the drum surface is an electrostatic image which represents the data to print note that the area to be printed black has the low potential constituting a positively exposed image 112
- Figure 2 1 12 drum surface potential 112
- 4 development 113
- 4 development the latent image constituted on the drum is developed into a visible image the developing roller a contains a 3 pole s n s magnet core b and an aluminum cylinder rotating around the magnet core b toner attracts to the developing roller a since it is powdery ink made of black resin bound to iron particles doctor blade c magnetized by magnet d is positioned approximately 0 mm above the developing roller a to constitute a smooth layer of toner in accordance with the roller revolution 113
- Figure 2 1 13 development 113
- The developing roller a is applied with the ac weighted positive dc power source toner e on the developing roller a is given a positive charge the positively charged toner e is then attracted to the areas of the drum f which was exposed to the laser light the gap between the drum f and the developing roller a is approximately 0 mm the non exposed areas of the drum f repel the positively charged toner as these areas maintain the positive charge the developing roller a is also ac biased to ensure contrast in yielding by compensating the toner s attraction and repelling action during development 113
- 5 transfer 114
- 5 transfer the image developed by toner on the drum a is transferred onto the paper because of the electrical attraction between the toner itself and the transfer roller b the transfer roller is negatively biased so that the positively charged toner is attracted onto the paper while it is pinched by the drum and the transfer roller 114
- Figure 2 1 14 transfer 114
- The nominal transfer bias is set to approximately 1 kv limit with the 6 µ a current since the ideal potential of the transfer bias depends on the thickness of paper the bias is raised to approximately 2 kv 6 µ a for thicker paper on the other hand the bias current is reduced to 1 kv 6 µ a for thin paper 114
- 6 fusing 115
- 6 1 fuser unit mechanism 116
- 7 cleaning 117
- 1 electrical parts layout 119
- 2 1 electrical parts layout 119
- 2 electrical parts layout 119
- 3 1 main pwb 121
- 3 operation of the pcbs 121
- Figure 2 3 1 main pwb circuit block diagram 121
- 3 2 engine pwb 122
- Figure 2 3 2 engine pwb circuit block diagram 122
- 1 eraser lamp control circuit 123
- 1 eraser lamp control circuit the cpu u1 turns pin 23 eraser of u1 to h level transistors q14 turns on consequently and the 24 v dc given at pin 1 of connector yc5 applies to the eraser lamps the eraser lamps thus illuminate as the current flows through the resistors r109 r110 and r111 eraser lamp the pin 2 of connector yc5 transistor q14 and the ground 123
- Eraser lamp 123
- Figure 2 3 3 eraser lamp control circuit 123
- 2 heater lamp control circuit 124
- 3 polygon motor control circuit 125
- 3 3 power supply unit 128
- Figure 2 3 6 power supply unit circuit block diagram 128
- The power supply unit provides the ac power input and dc power and outputs the high voltage bias generator circuit is mounted on a separate board a simplified schematic diagram is shown below 128
- 3 4 bias pwb 130
- Developing roller 130
- Figure 2 3 7 bias pwb circuit block diagram 130
- The bias pwb contains the developing bias output circuit registration sensor and the cassette switch it also provides a liaison connection to the high voltage unit power supply unit and the toner sensor 130
- Toner sensor 130
- V dc ac 130
- 3 5 high voltage unit 131
- Figure 2 3 8 high voltage unit circuit block diagram 131
- The high voltage unit contains the high voltage output circuit interlock switch circuit as well as providing a liaison connection with the power supply unit bias pwb and the engine pwb 131
- 1 interlock switch 132
- 1 interlock switch the interlock switch is located on the high voltage unit and opened and closed in conjunction with the front cover or the top cover via the interlock lever this switch connects and disconnects the 24 v dc power supply line if the front cover or the top cover is open the interlock switch is open and the 24 v dc to the high voltage output circuit bias pwb engine pwb and the power supply unit is disconnected deactivating the high voltage output laser output main motor output for safety the cooling fan is an exception since the cooling fan is directly fed with 24 v dc from the power supply unit at the primary side 24v1 of the interlock switch the cooling fan is not deactivated even the cover is open 132
- Figure 2 3 9 interlock switch 132
- 11 paper simplex printing 133
- 4 appendixes 133
- Timing chart no 1 paper cassette feeding a4 133
- Timing chart no 1 paper cassette feeding a4 81 2 11 paper simplex printing 133
- 11 paper duplex printing 134
- Timing chart no 2 paper cassette feeding a4 134
- Timing chart no 2 paper cassette feeding a4 81 2 11 paper duplex printing 134
- Bias pwb k0009 135
- Cassette switch 135
- Connector board kp 796 135
- Cooling fan 135
- Engine pwb k0010 135
- Eraser lamp a0050 135
- Exit sensor 135
- Feed solenoid 135
- Fuser thermistor 135
- Heater lamp 135
- High voltage unit 135
- Interlock switch 135
- Laser scanner unit 135
- Main motor 135
- Main pwb k0011 135
- Mp feed solenoid 135
- Mp paper sensor 135
- Optional paper feeder 135
- Paper sensor 135
- Pf feed board pwb kp 794 135
- Pf feed motor 135
- Power supply unit 135
- Power switch 135
- Registration sensor 135
- Registration solenoid 135
- Switchback solenoid 135
- Temperature thermistor 135
- Thermal cutout 135
- Toner sensor kp 1115 135
- Waste toner sensor kp 1115 135
- Wiring diagram 135
- Zenner pwb kp 1109 135
- Repetitive defects gauge 136
- Address telephone number 139
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