Panasonic FP-7718 Service Manual Download

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Supplement

1. Electrical Schematic Diagram

(1) Schematic Diagram

(2) Main CPU PCB

(3) Control Panel PCB

(4) Low Voltage Power Supply PCB

2. Description of circuit

(1) Paper feed unit

(2) Fuser temperature coutrol circuit

(3) Fuser abnormal detecting circuit

(4) Copy density sensor

(5) Waste toner bottle sensor

(6) Toner density sensor

(7) Hopper unit

(8) Recycle solenoid

(9) Automatic Duplex Unit

Summary of Contents for FP-7718

Page 1: ... NO OED9609343C1 Plain Paper Copier FP 7718 7722 FP 7728 7735 1996 Matsushita Electric Industrial Co Ltd All rights reserved Unauthorized copying and distribution is a violation of law FP 7718 7722 7728 7735 Service Manual ...

Page 2: ...rcial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his her own expense Any u...

Page 3: ...roduced in the FP 7718 7722 7728 7735 This manual dose not contain descriptions of functions which are already described and unchanged in the FP 7750 7742 service manual For those items not covered in this supple ment please refer to the FP 7750 42 Service Manual ...

Page 4: ...rcial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his her own expense Any u...

Page 5: ...roduced in the FP 7718 7722 7728 7735 This manual dose not contain descriptions of functions which are already described and unchanged in the FP 7750 7742 service manual For those items not covered in this supple ment please refer to the FP 7750 42 Service Manual ...

Page 6: ...ance 3 1 Maintenance Chart 3 1 IV PCB Connector and Signal Information 4 1 Main CPU PCB 4 1 4 2 Control Panel PCB 4 3 4 3 Low Voltage Power Supply PCB 4 7 V Troubleshooting 5 1 Service Mode 5 1 1 F4 mode Input Output check 5 1 2 F5 mode copier function programming 5 10 3 F6 mode adjustment and programming 5 12 4 F7 mode electronic counter 5 14 5 F8 mode copier operation adjustment 5 16 6 F9 mode T...

Page 7: ...l Panel PCB 4 Low Voltage Power Supply PCB 2 Description of circuit 1 Paper feed unit 2 Fuser temperature coutrol circuit 3 Fuser abnormal detecting circuit 4 Copy density sensor 5 Waste toner bottle sensor 6 Toner density sensor 7 Hopper unit 8 Recycle solenoid 9 Automatic Duplex Unit ...

Page 8: ...ion Danger of explosion if battery is incorrectly replaced Replace only with the same or equivalent type recommended by the manufacturer Dispose of used batteries according to the manufacture s instructions ...

Page 9: ...nfjlfns dgn ...

Page 10: ...ec Letter A4 size Without Auto mode 6 2 sec Letter A4 size With Auto mode FP 7722 7728 7735 4 0 sec Letter A4 size Without Auto mode 5 1 sec Letter A4 size With Auto mode 7 Copy ratio Enlargement fixed 2 00 1 55 1 29 1 21 Reduction fixed 0 79 0 77 0 65 0 61 0 50 Zoom 50 200 1 step 8 Copy size Ledger A3 Invoice A5 9 Paper capacity Cassette 550 sheets Multi feed bypass 50 sheets 10 Paper feed Front ...

Page 11: ...tely 50sec FP 7722 Approximately 70sec FP 7728 7735 19 Power consumption Less than 1 5 kW 20 Power source AC120V 60Hz AC220 240V 50Hz 21 Dimensions W D H 23 9 26 0 22 9 606 661 582 mm 23 9 26 0 18 9 606 661 479 mm FP 7718 22 Weight 159 lbs 71 kg 141 lbs 64 kg FP 7718 23 Ambient conditions Temperature 50 86F 10 30 C Relative humidity 30 80 Specifications are subject to change without notice ...

Page 12: ...LCC allows a high copy volume maximum feed paper capacity 5800 sheets five drawers LCC multiple sheet bypass ADF and sorter can be connected with the main system easily by using exterior connectors FP 7718 maximum feed paper capacity 2250 sheets 4 drawers multiple sheet bypass FP 7722 maximum feed paper capacity 2800 sheets 5 drawers multiple sheet bypass Environmental considerations We remember t...

Page 13: ...ries FP 7718 FP 7722 FP 7728 FP 7735 FA DS72 LCC FA MA301 Number of drawer 1 2 2 2 Auto Duplex unit FA MADM6 Option Option Option ADF FA A505 i ADF FA A888 10bin sorter FA S280 10bin staple sorter FA S615 20bin sorter FA S575 20bin staple sorter FA S680 Key OK N A ADF System console Sorter Copier paper feed ...

Page 14: ... make copies 2 Interrupt Key Press Interrupt key then indicator will light Make other copy job Press interrupt key again to continue original job 3 Reset Key Press to reset all features to initial power on state 4 Clear Stop key Press to stop copy run or clear copy count in display Print Key Recall Key To recall the number of copies selected during a copy run Quantity Keys Communications Monitor C...

Page 15: ... 1 mode 3 Access 4 User Preset 5 OHP interleaving mode 6 Zoom 7 Margin Shift Mode No Keys 8 Edge Mode 9 Book Mode A T Memory In Job programs A K Duplexing mode selection FP 7722 7728 7735 Using ADU A L 2 1 Copy Using i ADF A M 2 Page copy 2 in 1 mode selection 2 2 1 1 2 M M1 M2 OHP OHP OHP OHP 1 2 3 4 5 6 7 8 9 10 11 12 13 3 2 1 ...

Page 16: ...enance Lights steadily for duplex maintenance 5 Paper Misfeed 6 Copy Count Display Indicates number of copies zoom ratio and error code No Indicator 7 Message Display FP 7728 7735 Indicates procedures functions maintenance etc 8 Exposure Indicator 9 Paper Size Indicator A T Paper Drawer Tray Indicator A K Paper misfeed location A L Mode Select Indicator Staple Sort Sort Group No Keys A M Manual Ke...

Page 17: ...1 8 1 5 Outer view FP 7718 FP 7722 7728 7735 Sorter Bypass Control Panel ADF i ADF System console LCC Sorter ...

Page 18: ...user area cover 2 Toner bottle 3 Drum unit 4 Developer unit 5 Toner hopper unit 6 Developer release lever 7 Waste toner bottle 8 Total counter 9 Manual paper feed knob Feed unit 10 Paper transport handle 11 Transfer Separation corona 12 Paper transport unit 13 Manual paper feed knob Fuser unit ...

Page 19: ...r Developer cooling fan except FP 7718 Toner bottle motor Dust collecting fan except FP 7718 7722 Optics fan Optics fan Main motor Optics fan except FP 7718 Exhaust fan 1 Lifting motor 2 Upper lower stages Suction Ozone fan 1 2 Exhaust Fan for FP 7718 7722 2 Upper stage only for FP 7718 ...

Page 20: ...y Paper exit Lens home position Front cover open close Paper level Upper lower stage Registration roller paper pass Paper detection Upper lower stage Waste toner bottle Total counter Bypass paper detection Bypass paper size Toner level Toner bottle home position Paper feed cover open close Upper stage only for FP 7718 Bottom plate upper limit sensor Upper lower stage Middle roller paper pass upper...

Page 21: ...Discharge lamp Location Paper feed clutch Registration roller clutch Discharge lamp Middle roller clutch Paper feed clutch Upper lower stage Power switch Door switch Recycle solenoid FPJ 7728 7735 Upper stage only for FP 7718 ...

Page 22: ...2 5 Component Location 2 5 PCB Location HVPS High voltage power supply LED array Control panel 1 Control panel 2 Paper feed driver except FP 7718 LVPS Low voltage power supply AC driver Main CPU ...

Page 23: ...ies Registration roller bearing FFPMQ0559 2 Replace at 1 080 000 copies Middle roller FFPMA0545 1 Replace at 1 200 000 copies Torque limiter Bypass FFPXQ24H00 1 Replace at 1 200 000 copies Torque limiter Copier FFPXQ04H00 1 Replace at 1 200 000 copies Developer Cleaning blade FFPHK0942 1 X unit Wire FFPXL05H00 1 X Developer FQ ZK20 1 X Drum FQ HK20 1 X Side seal Front FFPXG51H00 1 X Side seal Rear...

Page 24: ...X Heat roller gear FFPMF1078 1 X Fuser entry guide lower FFPKF1308 1 Replace at 1 200 000 copies Pressure roller FFPMA03582 1 X Pressure roller bearing FFPMQ0573 2 X Heat insulating bushing FFPMQ0524 2 X Optics Exposure lamp E08V025WN2A 1 X unit Dust protection filter FFPJD0038 2 X Filter A FFPGB0022 1 X Filter B FFPGB0023 1 X Main Suction Ozone filter FFPHJ0039 1 X body Ozone filter 1 FFPHJ0038 1...

Page 25: ... 1 080 000 copies Middle roller FFPMA0545 1 Replace at 1 200 000 copies Torque limiter Bypass FFPXQ24H00 1 Replace at 1 200 000 copies Torque limiter Copier FFPXQ04H00 1 Replace at 1 200 000 copies Developer Cleaning blade FFPHK0942 1 X unit Wire FFPXL05H00 1 X Developer FQ ZK20 1 X Drum FQ HK20 1 X Side seal Front FFPXG51H00 1 X Side seal Rear FFPXG50H00 1 X Spacer ring Front FFPHQ0059 1 X Spacer...

Page 26: ...2 X Heat roller gear FFPMF1080 1 X Fuser entry guide lower FFPKF1308 1 Replace at 1 200 000 copies Pressure roller FFPMA04181 1 X Pressure roller bearing FFPMQ0573 2 X Heat insulating bushing FFPJF0037 2 X Optics Exposure lamp E08V025WN2A 1 X unit Dust protection filter FFPJD0038 2 X Filter A FFPGB0022 1 X Filter B FFPGB0023 1 X Main Suction Ozone filter FFPHJ0039 1 X body Ozone filter 1 FFPHJ0038...

Page 27: ...4 1 PCB Connector and Signal Information IV PCB Connector and Signal Information 4 1 Main CPU PCB CN5 Pin Signal Destination Status Function No Name 13 LV Not used 15 RRSN2 Not used 17 GND Not used ...

Page 28: ...6 GND Toner bottle 0V Ground empty sensor CN3 3 17 BPSN Toner bottle Home position detecting home position signal sensor SN10 2 18 TFSN Toner bottle Empty detecting signal empty sensor SN3 2 0V 5V 4 2 Control Panel PCB 1 Control panel 1 CN401 Pin Signal Destination Status Function No Name 19 VLC Toner bottle DC 5V power supply home position sensor SN10 1 20 VLC Toner bottle DC 5V power supply empt...

Page 29: ... LED ON OFF signal CN352 7 8 LEDb1 Control panel 2 LED ON OFF signal CN352 8 ON 5V 2 5V ON 5V 2 5V CN402 Pin Signal Destination Status Function No Name 1 LEDb2 Control Panel 2 LED ON OFF signal CN351 1 2 LEDb3 Control Panel 2 LED ON OFF signal CN351 2 3 LEDb4 Control Panel 2 LED ON OFF signal CN351 3 4 LEDb5 Control Panel 2 LED ON OFF signal CN351 4 5 LEDb6 Control Panel 2 LED ON OFF signal CN351 ...

Page 30: ...ock signal 5 CKL Control panel 2 LED data latch signal CN353 5 6 OE Control Ppanel 2 LED CN353 6 output enable signal 7 A Control panel 2 LED CN353 7 serial data signal 8 QH Control panel 2 Key ON OFF CN353 8 serial data signal 2 Control panel 2 CN351 Same as Control Panel 1 CN402 CN352 Same as Control Panel 1 CN403 CN353 Same as Control Panel 1 CN404 0V 5V 5V 0V Pulse 5V 0V Pulse 5V 0V Pulse 1 25...

Page 31: ...7728 7735 Only Pin Signal Destination Status Function No Name 1 GND LCD 0V Ground CN 1 2 VL LCD DC 5V power supply CN 2 3 VO LCD 0 4V Contrast adjustment CN 3 voltage 4 RS LCD Register select signal CN 4 5 R W LCD 0V Read Write signal CN 5 6 LCDWR LCD Data Write sgnal CN 6 7 DB0 LCD Indication data signal 0 CN 7 8 DB1 LCD Indication data signal 1 CN 8 9 DB2 LCD Indication data signal 2 CN 9 10 DB3...

Page 32: ...ta transfer CN403 7 clock signal 7 CPOCLK Control panel 1 Data receiving CN403 1 clock signal 8 EPASW Control panel 1 Power save signal CN403 8 CN104 Pin Signal Destination Status Function No Name 9 LCDWR Control panel 1 LCD data write signal CN403 6 10 GND Control panel 1 0V Ground CN403 12 11 GND Control panel 1 0V Ground CN403 13 12 GND Control panel 1 0V Ground CN403 14 13 VLC Control panel 1 ...

Page 33: ... 1 GND Paper level 0V Ground sensor CN 3 2 PEWSN Paper level Paper level detecting sensor signal CN 2 3 VL Paper level DC 5V power supply sensor CN 1 CN110 FP 7718 Only Pin Signal Destination Status Function No Name 1 LUM Lift motor Lift motor ON OFF CN 1 signal 2 PGND Lift motor 0V Ground CN 2 0V 5V ON 0V 24V ON 0V 5V ...

Page 34: ... upper limit Paper upper limit sensor detecting signal CN 2 6 VL Paper upper limit DC 5V power supply sensor CN 1 7 GND Paper pass 0V Ground sensor CN 3 8 CRRSN Paper pass Paper detecting signal sensor CN 2 9 VL Paper pass DC 5V power supply sensor CN 1 10 PCSOL Paper feed clutch Clutch ON OFF CN 2 signal CN111 FP 7718 Only Pin Signal Destination Status Function No Name 11 VP Paper feed clutch DC ...

Page 35: ...e Input Output check 1 Input check Set the copier to service mode and press Multi Copy key 4 Press Print key Select desired code number with Multi Copy key Press Print key inputs and outputs can be checked Press Clear Stop and User Preset key to escape service mode ...

Page 36: ...sor Bar in home position d Transfer motor clock sensor Clock signal is detected 21 For FA S615 a Bin paper detecting sensor Paper is not detected b Paper detection sensor for JAM Paper is not detected C Stapler detection sensor Stapler is not installed 22 For FA S680 a Sorter interlock switch Sorter is installed b Paper transport cover open close Cover opened For FA S280 a Sorter interlock switch ...

Page 37: ...A4 Letter R A4R Invoice A5 04 a Sheet bypass paper detecting Paper is not detected sensor b Sheet bypass paper size Ledger A3 detection sensor Legal B4 FLS except FP 7718 Letter A4 Letter R A4R Invoice A5 c Platen open close sensor Platen is closed d Platen angle sensor Platen is not open more than 30 degrees e Copier paper feed cover Cover is opened 05 a Developer cooling fan motor Motor is locke...

Page 38: ...or 1 Motor is locked d Optics fan motor 2 Motor is locked e Optics fan motor 3 FP 7722 Motor is locked f Exhaust fan motor 3 FP 7722 Motor is locked 09 For FP 7722 a Paper detection sensor Paper is not detected Copier lower paper tray b Paper limit sensor 2 Paper is full Copier lower paper tray c Paper pass sensor Paper is not detected Copier lower paper tray d Paper level sensor 2 Paper is empty ...

Page 39: ...Paper is over stocked System console middle paper tray c Paper pass sensor 2 Paper is not detected System console middle paper tray d Paper detection sensor 1 Paper is not detected System console upper paper tray e Paper limit sensor 1 Paper is over stocked System console upper paper tray f Paper pass sensor 1 Paper is not detected System console upper paper tray 13 a Paper level sensor 1 Paper is...

Page 40: ... counter is not installed c Paper lever sensor FP 7718 Paper is empty or tray is pulled out d Paper level sensor Paper is empty e Paper exit cover sensor Cover is closed FA A888 18 For FA A505 a Encoder sensor Signal is detected When driving the transport belt b Original detection sensor Original is detected c Original feed pass sensor Original is not detected d Original exit pass sensor Original ...

Page 41: ... sensor Paper is not detected For FA S615 a Bin lower limit switch Bin is placed less than lower limit b Bin cam home position sensor Cam in home position c Tamper home position sensor Bar in home position d Transfer motor clock sensor Clock signal is detected 21 For FA S575 a Sorter interlock Sorter is pulled out For FA S615 a Bin paper detecting sensor Paper is not detected b Paper detection sen...

Page 42: ...am in home postion c Tamper home position Tamper in home position sensor 24 For FA S680 FP 7722 a Bin paper detecting sensor Paper is detected b Paper pass sensor Paper is detected c Staple detecting sensor Staple is detected 25 For FA S680 FP 7722 a Stapler cam sensor Cam in home position b Stapler swing home position Stapler swing in home sensor position c Staple position sensor Stapler in stapl...

Page 43: ...enoid clutch operates FP 7722 7728 7735 Paper feed clutch FP 7718 46 Lift motor 1 except FP 7718 When CN603 1 is 24V motor rotates lifting up together with upper limit control 47 Paper feed clutch 1 except FP 7718 When CN610 3 is 24V clutch operates 48 Paper feed solenoid 1 except FP 7718 When CN610 4 is 24V solenoid operates 49 Lift motor 2 except FP 7718 When CN604 1 is 24V motor rotates lifting...

Page 44: ... mode and press Multi Copy key 5 Press Print key Press desired code number Press Print key Press desired function number with Multi Copy key When the Print key is pressed the desired code input will be accepted Press Clear Stop and User Preset key to escape service mode ...

Page 45: ... Total copy count 0 Does not count up 0 Checking double feed 1 Count up by comparison between in out copies except FP 7718 38 Duplex unit initial 0 Does not select 1 mode setting 1 1 sided to 2 sided except FP 7718 2 2 sided to 2 sided 3 Book to 2 sided 51 2 in 1 mode copy ratio 0 Full size 1 setting except FP 7718 1 Reduction 53 Auto shift except FP 7718 0 No auto shift 0 Duplexing 1 Auto shift 6...

Page 46: ...ce mode and press Muiti Copy key 6 Press Print key Press desired code number Press Print key Press new setting number with Multi Copy key When the Print key is pressed the desired code input will be accepted Press Clear Stop and User Preset key to escape service mode ...

Page 47: ...ment FP 7722 28 35 0 425mm FP 7718 9 to 9 41 Paper loop Adjustment for length of 0 5mm Sheet bypass the loop formed before the FP 7722 28 35 copier timing roller 0 4mm FP 7718 40 to 50 42 Paper loop same as F6 41 0 4mm When installed duplex 50 to 50 unit second copy feeding 43 Paper loop same as F6 41 0 4mm Copier paper tray lower 50 to 50 44 Paper loop Adjust the length of 0 4mm System console th...

Page 48: ...ss Print key Indicates memorized count in the electric counter Press Clear Stop and User Preset key to escape service mode Code Item Function 00 A code No of specific Identification code number for access counter of user choice department manager mode 01 20 Not used 21 Total count Total count of all copies 22 Preventive maintenance PM count of all copies total count NOTE When the service call indi...

Page 49: ...f the copier count 37 System console upper Total count of upper stage of optional system console paper drawer count 38 System console middle Total count of middle stage of optional system console paper drawer count 39 System console lower Total count of lower stage of optional system console paper drawer count 40 LCC count Total count of optional LCC 3000 sheet paper drawer 41 Copier upper paper d...

Page 50: ...r Stop and User Preset key to escape service mode Code Item Function 06 Machine error and Paper jam read a Each time the Print key is pressed 30 machine error or paper jam codes stored in memory are displayed beginning with the code stored first NOTE When stored codes more than 30 only the most recent 30 are displayed 07 Machine error and Paper jam code a Press the Print key 0 is displayed read 06...

Page 51: ...lti Copy key 9 Press Print key Input the telephone number Number Multi Copy key Hyphen Recall key Space Photo Auto key Carousal moving to left side Light key to right side Dark key The Print key is pressed the new telephone number is now in memory Press Clear Stop and User Preset key to escape service mode ...

Page 52: ... important components of the copier When any trouble occurs the copier is stopped 1 User error NOTE XXXX will appear in message display Error code Message FP 7728 7735 Item See page U17 CHECK Sorter transport cover failure SORTER CONDITION U18 CHECK Copy usage is upper limited DEPT MAXIMUM COPIES ...

Page 53: ...5 19 Troubleshooting ...

Page 54: ...e Display FP 7728 7735 UP00 18 Up Down keys Press User Preset key Select user preset mode code number 1 2 Change initial setting number 4 Press Print 3 5 5 3 User Preset Mode User Preset modes can change the initial copy mode if necessary 1 Operation NOTE To change initial setting number zoom Up Down keys are also available 1 Check selected code number with message display FP 7728 7735 or copy cou...

Page 55: ...requent 2 Staple sort 3 Group usage mode UP07 Duplex mode default 0 No 1 1 2 0 Determines the most frequent 2 2 2 3 Book 2 usage mode UP08 2 in 1 copy ratio 0 Full size 1 Reduction 1 Selects whether to copy full size or reduction in the 2 in 1 mode UP09 Auto edge default 0 OFF 1 ON 1 Selects whether or not to disable Auto Edge Deletion UP10 Skyshot mode default 0 OFF 1 M1 ON 0 Enables or disables ...

Page 56: ... 4 Enter 1 and 9 using multi copy keys on the control panel then press print key to select UP19 7728 35 c19 7718 22 5 Enter key operator I D Code 3 digit 6 Enter 3 and 2 using multi copy keys on the control panel then press print key to select UP32 7728 35 c32 7718 22 7 Input the size of check in Y paper width direction using UP DOWN keys on the control panel then press print key to store Copy dir...

Page 57: ...01 050 FP 7722 7728 001 100 9 Press Department Counter key A T Selected department count to be lndicated To clear all department count Indicate all department count refer to step 1 to 8 Display of the count Ex 1 2 3 4 5 6 For 7718 7722 123 Upper 3 digit Press department Counter key 456 mm Lower 3 digit For 7722 7728 A number of count will be indicated at message display Press User Preset and Zero ...

Page 58: ...FP 7718 7722 123 Upper 3 digit Press Print key 456 mm Lower 3 digit Press Print key The next department will be shown For FP 7728 7735 UP34 Max 001 1 2 3 4 5 6 Dept Counter Press Print key To display Max copy limit For FP 7718 7722 123 Press Department counter key 456 mm Upper 3 digit Lower 3 digit For FP 7728 7735 A number of count will be indicated at massage display Enter new numbers to renew M...

Page 59: ... 7 Enter department code and Press department Counter Key 8 Example To set Department I D code To display department I D code For FP 7718 7722 001 For FP 7728 7735 UP34 I D 001 001 Dept counter To change department I D code For FP 7718 7722 001 Current I D code 010 New I D code Press print key The next department will be shown For FP 7728 7735 UP34 I D 001 001 Dept counter Enter new I D code Press...

Page 60: ...d to disconnect mains power Please ensure that the socket outlet is installed near the equipment and shall be easily accessible The copier should be installed in a level and well ventilated area to minimize the ozone density in the air Copier Exit tray Multi sheet bypass tray 14 350mm 4 100mm 28 700mm 6 2 Unpacking Check the condition and contents of the box for any shipping damage and completenes...

Page 61: ...e the lens unit fixing bracket B 1 screw 5 Reinstall the platen glass 6 Reinstall the original guide plate 2 Duplex unit 1 Open the waste toner bottle cover 2 Remove the waste toner bottle 3 Remove the tape and duplex unit bracket 4 Pull the duplex unit tray out fully 5 Remove the paper guide shipping screws 2 screws 6 Raise the paper guide 7 Remove the shipping styrofoam 1 piece 8 Slide back the ...

Page 62: ...er unit release lever clockwise 3 Remove the recycle solenoid cover 1 screw 4 Open the waste toner bottle door 5 Lower the paper transport 6 Remove the drum unit 1 screw 1 connector 7 Disconnect the TDC connector 8 Remove the developer unit Pull out until it stops then angle up to remove Note Be careful to avoid damaging the recycle and toner addition sponge seals 4 TDC connector Toner bottle Hopp...

Page 63: ... 3 Rotate the mag roller gear clockwise down ward several turns again to stabilize magnet brush 5 Reinstall the developer unit 6 Reconnect the TDC connector 7 Reinstall the drum unit 8 Pull the developer unit release lever out until it stops and rotate it 90 degrees counterclockwise 9 Pushthedeveloperunitreleaselever back in until it stops Cleaning blade pressure release 1 Install the cleaning bla...

Page 64: ...de code 09 5 Press the Print key for automatic TDC sensor gain adjustment Wait approximately 2 minutes until the adjustment cycle stops 6 Write the contents of F6 21 and 26 on the memory sheet Black density sensor output gain adjustment 1 Press the 1 and 4 to enter the F8 mode code 14 2 Press the Print key for automatic black density sensor output gain adjustment 3 Write the content of F6 65 on th...

Page 65: ...er are aligned 6 Close the front cover Paper size setting 1 Pull the paper drawer out until it stops 2 Position the paper guides front rear to the paper size required If the size will remain fixed remove the latch locking screw rotate the lock and reinstall the screw 3 Position the paper guide left to the paper size required and install the paper guide screw 4 Push in the paper tray 5 Select F5 15...

Page 66: ...ould be clearly visible Note Skip to step 11 if the density is in target 5 Enter the F6 28 mode 6 Enter the new content Note The Reset key is used to enter the content Lighter side Darker side 7 Press the OK key then press Print key 8 Press the Clear Stop key twice 9 Enter the F2 mode 10 Make a copy to confirm the adjustment Note Repeat step 3 to 10 until the proper density is attained 11 Press th...

Page 67: ...below 2 550 sheet paper drawer 1 Pull the paper drawer out until it stops 2 Loosen the paper drawer adjusting plate 2 screws and move it to the front or rear as required 3 Install new paper then adjust the paper width 4 Remove the paper 5 Retighten the paper drawer adjusting plate mounting screws 6 Loosen paper size plate mounting screw and move the plate as necessary then tighten the screw Screw ...

Page 68: ... adjustment 1 Press the User Preset Ledger A3 of Original Size and 3 keys simultaneously to enter the mode 2 Press the 6 key to enter the F6 mode 3 Press the Print key 4 Press the 0 and 5 keys to enter the F6 mode code 05 5 Press the Print key 6 Enter the new content Note The Reset key is used to enter the content Paper feed timing is delayed Paper feed timing is advanced 7 Press the Print key 8 P...

Page 69: ...505 1 Check the rank of sensor mark sheet back side of the original guide 2 Select the F6 mode 3 Press 2 and 8 keys to enter F6 mode code 28 then press Print key 4 Enter the new content according to the rank of sensor mark sheet Note Rank F6 C28 content 2 20 1 10 0 0 1 10 2 20 ...

Page 70: ...etected ON H 5V Paper detected OFF L 0V F ON Motor ready to operate H 5V FUpper limit detected OFF Motor stop F4 51 3 Lift motor ON 8 CN609 CN609 24V 5V IP602 IC603D IC602 IC604 IC603C CN604 Q602 R604 R636 DT605 DT604 CN609 14 5 4 3 16 15 14 4 5 6 2 1 2 13 15 14 10 11 L 0V Paper feed solenoid ON H 5V Paper feed solenoid OFF L 0V Paper feed clutch ON H 5V Paper feed clutch OFF 1 Paper feed unit ...

Page 71: ...normal temperature detecting circuit To open circuit detecting circuit SW202 Door switch Thermostat Fuser lamp 1 Thermistor CN201 CN803 NF Block CN203 5V R208 PC202 CN206 CN16 TD36 CN17 R61 R62 100 24 5V IC1 IC5 CPU P C B L 0V Fuser lamp OFF H 5V Fuser lamp ON 2 Fuser temperature control circuit ...

Page 72: ...6 TA4 DT35 IC13D 5V RA21 TA4 DT42 5V RA21 R65 5V R64 RA18 Q8 Q9 100 IC1 24 IC5 13 14 CN7 5V R62 L Fuser lamp OFF H Fuser lamp ON CPU P C B L 0V Fuser lamp OFF H 5V Normal L 0V Fuser lamp OFF H 5V Normal Thermistor open circuit deceting circuit L Less than 0 7V Open circuit H More than 0 7V Normal L Less than 1 6V Abnormal temperature H More than 1 6V Normal RA21 ...

Page 73: ... density sensor 6 97 60 98 5 6 5 7 CN501 VR501 VR502 PS501 Rear side PS502 Front side 1 2 3 4 CN7 1 5V R22 IC5 IC1 RA18 IC9 R21 Q2 2 3 4 Copy density sensor P C B Drum CPU P C B L 0V Sensor ON H 5V Sensor OFF ...

Page 74: ... 5 Waste toner bottle sensor V5 CN401 6 IC402 20 18 16 Control panel 1 Waste toner full sensor L 0V Not full OFF H 5V Full ON 1 2 3 ...

Page 75: ...C10 13 12 14 Developer unit Toner density sensor Toner density sensor output voltage Approx 2 5 V Toner density control gain adjustment voltage F6 21 0 Approx 6 5 V 0 033 V 1 step CPU P C B 8 6 CN7 3 5 3 1 RA17 2 1 96 IC1 IC12 DAC ...

Page 76: ...35 Approx 0 65 V LVPS Toner bottle position sensor No toner in reserve tank Approx 2 kHz viburation L 0V Toner detected H 5V No toner detected IC101 12 pin should be L L 0V Toner level sensor ON H 5V Toner level sensor OFF L 0V Home position ON L 5V OFF Toner level sensor R158 R155 R156 R157 R127 9 10 8 9 IC103 IC104 5 IC407 Control panel 1 6 5 4 3 2 1 1 2 3 4 5 CN113 1 2 3 4 5 6 ...

Page 77: ... 8 Recycle solenid 11 12 2 1 CN7 Q11 L 0V Recycle solenoid OFF H 5V Recycle solenoid ON Developer Unit CPU P C B Recycle solenoid F4 35 Recycle solenoid R56 R55 DT16 67 IC5 24V 5V ...

Page 78: ... clutch OFF L 0V ADU close L 5V ADU open AD connector CPU P C B ADU open close sensor Connector Paper pass sensor A Paper pass sensor B Rear guide home position sensor Paper guide home position sensor Magnetic clutch 2 CN652 Q652 6 10 1 2 17 18 24V 24V ground 5V 5V ground 1 CN2 2 17 18 20 2 2 CN655 6 1 CN654 24V 2 L 0V Paper detected ON H 5V NO paper detected OFF R674 R673 DT652 11 IC652 5V ...

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Panasonic FP-7718, Service Manual

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