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Safety precautions

This booklet provides safety warnings and precautions for our service personnel to ensure the safety of
their customers, their machines as well as themselves during maintenance activities. Service personnel
are advised to read this booklet carefully to familiarize themselves with the warnings and precautions
described here before engaging in maintenance activities.

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Summary of Contents for PF-720

Page 1: ...PF 720 Option Copier SERVICE MANUAL Code Y112020 4...

Page 2: ...PUBLICATION ISSUED BY Olivetti S p A 77 Via Jervis 10015 Ivrea TO Italy Copyright 2010 Olivetti All rights reserved...

Page 3: ...This page is intentionally left blank...

Page 4: ...sonnel to ensure the safety of their customers their machines as well as themselves during maintenance activities Service personnel are advised to read this booklet carefully to familiarize themselves...

Page 5: ...this symbol CAUTION Bodily injury or damage to property may result from insufficient attention to or incorrect compliance with warning messages using this symbol Symbols The triangle symbol indicates...

Page 6: ...or dusty place This may cause fire or electric shock Do not install the copier near a radiator heater other heat source or near flammable material This may cause fire Allow sufficient space around the...

Page 7: ...carefully Always check that the copier is correctly connected to an outlet with a ground connection Check that the power cable covering is free of damage Check that the power plug is dust free If it i...

Page 8: ...trapped wire and missing screws Check that all the caution labels that should be present on the machine according to the instruction handbook are clean and not peeling Replace with new ones if necess...

Page 9: ...This page is intentionally left blank...

Page 10: ...lf diagnosis 1 4 5 1 Self diagnostic function 1 4 5 2 Self diagnostic codes 1 4 5 1 4 3 Electric problems 1 4 7 1 4 4 Mechanical problems 1 4 9 1 5 Assembly and Disassembly 1 5 1 Precautions for assem...

Page 11: ...3LM This page is intentionally left blank...

Page 12: ...II 8 5 x 13 5 Letter LetterR Excutive ExcutiveR StatementR 8K 16K 16KR Paper weight 60 to 163 g m2 Paper types Standard recycled color Power source Electrically connected to the machine Dimensions 585...

Page 13: ...3LM 1 1 2 1 1 2 Parts names Figure 1 1 1 2 6 3 5 4 4 1 1 Left cover 4 2 Cassette 3 3 Cassette 4 4 Paper width guides 5 Paper width adjusting tab 6 Paper length guide Service Manual Y112020 4...

Page 14: ...3LM 1 1 3 1 1 3 Machine cross section Figure 1 1 2 Machine cross section Paper path Y112020 4 Service Manual...

Page 15: ...3LM 1 1 4 This page is intentionally left blank Service Manual Y112020 4...

Page 16: ...humidity abrupt ambient temperature changes and hot or cold air directed onto the machine Avoid dust and vibration Choose a surface capable of supporting the weight of the machine Place the machine o...

Page 17: ...3LM 1 2 2 1 2 2 Unpacking 1 Precaution for unpacking Hold the positions shown in the figure and remove the paper feeder from the outer case Figure 1 2 1 Service Manual Y112020 4...

Page 18: ...r installation 1 Paper feeder 2 Outer case 3 Inner case 4 Bottom left pad 5 Bottom right pad 6 Upper left pad 7 Upper right pad 8 Plastic sheet 9 Plastic bag 10 Installation guide 11 Paper size plates...

Page 19: ...3LM 1 2 4 3 Remove the tapes Procedure 1 Remove three tapes Figure 1 2 3 Tape Tape Tape Service Manual Y112020 4...

Page 20: ...and the memory indicator are off before turning off the main power switch And then unplug the power cable from the wall outlet 2 Remove cassette 3 and 4 3 Attach the cassette heater using the two M4 x...

Page 21: ...3LM 1 2 6 This page is intentionally left blank Service Manual Y112020 4...

Page 22: ...er 001 using the cursor up down keys or numeric keys and press the start key Enter the maintenance item number using the cursor up down keys or numeric keys The selected maintenance item is run Press...

Page 23: ...t start timing LSUOUT TOP LSUOUT LEFT LSUOUT TOP B W 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Operation panel and support equipment U247 Setting the paper feed device Mode setting U341 Specific...

Page 24: ...ection Solution Framework Framework MOTOR CPU Motor CPU MOTOR CPU BOOT Motor CPU booting H VLT CPU High voltage CPU H VLT CPU BOOT High voltage CPU booting SLEEP CPU Sleep CPU SLEEP CPU BOOT Sleep CPU...

Page 25: ...size paper is used 3 0 to 3 0 0 0 1 mm LSUOUT TOP MPT Half L Paper feed from MP tray when large size thick paper is used 3 0 to 3 0 0 0 1 mm LSUOUT TOP CAS L Paper feed from cassette when large size...

Page 26: ...ce mode Maintenance item No Description Display Description Setting range Default setting Change in value per step LSUOUT TOP MPT L B W Paper feed from MP tray when large size paper is used 3 0 to 3 0...

Page 27: ...llowing adjustments in maintenance mode Completion Press the stop key The screen for selecting a maintenance item No is displayed Maintenance item No Description Display Description Setting range Defa...

Page 28: ...on only for printer output A paper feed location specified for printer output cannot be used for copy output Method 1 Press the start key 2 Select the paper feed location for the printer Two or more c...

Page 29: ...t displayed Clearing 1 Select the counts to be cleared CASETTE 3 CASETTE 4 and LCF cannot be cleared 2 Select the counts for all and press ALL CLEAR 3 Press the start key The counts is cleared Complet...

Page 30: ...the machine immediately stops copying and displays the jam location on the operation panel Paper misfeed detection can be reset by opening and closing the left cover 3 to turn left cover 3 switch off...

Page 31: ...ecified time of PF paper feed clutch 2 PFPFCL2 turning on and cannot be detected at the same timing even after retry 2853 ms 2324 ms 2112 ms 19 Misfeed in paper feeder paper con veying section Feed sw...

Page 32: ...ed from cassette 4 Jam code 13 Paper is extremely curled Change the paper Check if the paper feed pul ley forwarding pulley and separation pulley of cas sette 4 are deformed Check visually and replace...

Page 33: ...problem with PF paper feed clutch 1 Check see page 1 4 7 5 A paper jam in the paper feed section is indicated during copying multiple sheets in cassette 4 Jam code 25 Broken PF feed switch actuator Ch...

Page 34: ...ift motor 1 Defective PF lift switch 1 Check if YC1 7 on the PF main PWB goes low when PF lift switch 1 is turned off If not replace PF lift switch 1 C1040 PF lift motor 2 error After cassette 4 is in...

Page 35: ...replace or repair optional paper feeder C2600 PF paper conveying motor error The lock signal of the motor is detected above 450 ms Poor contact in the connector termi nals Check the connection of con...

Page 36: ...YC2 5 PF paper feed clutch 2 YC2 6 PF paper conveying clutch YC2 4 4 The PF lift motor 1 2 does not operate 1 Broken motor coil Check for continuity across the coil If none replace the motor 2 Poor c...

Page 37: ...for continuity within the con nector cable If none remedy or replace the cable 2 Defective left cover 4 switch Check for continuity across the contacts If there is no continuity when the left cover 4...

Page 38: ...the cassette installed incorrectly Check the paper width guide visually and remedy or replace if necessary Deformed paper width guide in the cassette Check the paper width guide visually and remedy o...

Page 39: ...3LM 1 4 10 This page is intentionally left blank Service Manual Y112020 4...

Page 40: ...cause damage to the equipped hard disk When handling PWBs printed wiring boards do not touch parts with bare hands The PWBs are susceptible to static charge Do not touch any PWB containing ICs with ba...

Page 41: ...n pulleys as follows Procedure Removing the primary paper feed units 1 Remove cassette 3 and 4 2 Remove the screw and then remove the front upper cover Figure 1 5 1 3 Remove each screw and then remove...

Page 42: ...ull the paper forwarding pulley shaft and remove the forwarding pulley Figure 1 5 4 Removing the paper feed pulley 7 Remove two stop rings from the primary paper feed unit 8 Pull the paper feed pulley...

Page 43: ...rrow and remove the separation pulley Figure 1 5 6 11 Replace the forwarding paper feed and separation pulleys 12 Refit all the removed parts When refitting the forwarding pulley orient it correctly a...

Page 44: ...Remove the cassette 2 Remove two screws and 8 pin socket from the rear of the cassette 3 Detach the 8 pin connector of the PF paper size width switch from the 8 pin socket 4 Remove three screws holdin...

Page 45: ...ly the specified grease to the printed surface of the new PF paper size width switch shaded area in the diagram and fit the switch to the rack adjuster 8 Refit all removed parts Figure 1 5 10 Rack adj...

Page 46: ...PF paper conveying clutch 1 Remove the primary paper feed units see page1 5 2 2 Remove three screws and then remove the rear cover Figure 1 5 11 3 Release three wire saddles 4 Remove the connector 5 R...

Page 47: ...remove the drive unit Figure 1 5 13 9 Remove two screws and then remove the PF drive motor from the drive unit Figure 1 5 14 Connector A Connector A Connector B Connector C Drive unit Connector B Wir...

Page 48: ...the PF paper conveying clutch PF paper feed clutch 1 and 2 14 Refit all removed parts Caution When fitting the clutches be sure to refit the whirl stops After fitting the drive unit fit the primary pa...

Page 49: ...r and change the position of the adjuster If the test pattern output example looks like 1 turn the adjusting screw clockwise move the adjuster in the direction of the black arrow If the test pattern o...

Page 50: ...y the paper into the machine Figure 2 1 1 7 5 15 1 2 3 8 10 11 6 12 7 1 2 3 4 14 9 6 13 1 Forwarding pulley 2 Paper feed pulley 3 Separation pulley 4 Feed roller 5 Feed pulley 6 Cassette operation pla...

Page 51: ...YC3 11 12 13 YC3 1 2 3 YC8 3 YC8 1 YC2 8 10 YC2 13 16 YC2 12 14 YC2 11 15 YC4 3 FCL REM UFCL REM LFCL REM UCLLSW UCPESW LCLLSW LCPESW LFEED SW LO DIG0 1 2 UP DIG0 1 2 UPCLE SW LPCLE SW LLM OUT LO SIG...

Page 52: ...cassette 3 8 PF paper size length switch 2 PFPLSW2 Detects the length of paper in cassette 4 9 PF paper size width switch 1 PFPWSW1 Detects the width of paper in cassette 3 10 PF paper size width swi...

Page 53: ...3LM 2 2 2 This page is intentionally left blank Service Manual Y112020 4...

Page 54: ...E SW PFPLSW1 LPCLE SW PFPLSW2 UCPESW PFPSW1 UCLLSW PFLSW1 LCPESW PFPSW2 LCLLSW PFLSW2 UP DIG0 1 2 START STOP CLOCK GAIN CW CCW LD ULM OUT UP SIG1 2 LLM OUT LO SIG1 2 FCL REM UFCL REM LFCL REM PFPWSW1...

Page 55: ...3LM 2 3 2 Figure 2 3 2 PF main PWB silk screen diagram YC7 YC5 U2 U1 U5 U7 U8 U6 U3 YC3 YC1 YC2 YC6 YC8 YC4 5 14 1 2 13 2 1 17 18 2 1 1 7 16 15 1 7 1 4 1 1 10 Service Manual Y112020 4...

Page 56: ...24V O 24 V DC 24 V DC supply to PFCCL Connected to the PF paper con veying clutch PF paper feed clutch 1 2 and PF lift motor 1 2 2 24V O 24 V DC 24 V DC supply to PFPFCL1 3 24V O 24 V DC 24 V DC supp...

Page 57: ...O 0 5 V DC pulse PFDM clock signal 5 GAIN O 0 5 V DC PFDM gain signal 6 LD O 0 5 V DC PFDM lock signal 7 CW CCW O 0 5 V DC PFDM rotation switch signal YC5 1 GND Ground Connected to the machine 2 5V I...

Page 58: ...an with alcohol or a dry cloth Feed pulley Cleaning Every time Clean with alcohol or a dry cloth Paper feed pulley Check and replace Every time Clean with alcohol or a dry cloth Replace after feeding...

Page 59: ...3LM 2 4 2 This page is intentionally left blank Service Manual Y112020 4...

Page 60: ...9 9 PUSH SW 10 10 NC PFPLSW2 PFPLSW1 1 1 4 4 GND 2 2 3 3 UPCLE SW 1 1 2 2 GND 2 2 1 1 LPCLE SW YC1 YC8 15 11 15 NC PFPSW1 PFLSW1 PFPSW2 PFLSW2 2 8 5 11 NC 1 1 1 7 1 5 NC 2 2 4 6 8 1 5V 3 3 3 5 13 8 UC...

Page 61: ...UPDATINGSTATUS DATE UPDATEDPAGES PAGES CODE 04 2010 1ST EDITION 61 Y112020 4...

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