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Riso RP-255, Technical Manual

The Riso RP-255 Technical Manual is a comprehensive guide to help you navigate through the features and functions of this high-quality printing machine. You can easily download the manual for free from manualshive.com to ensure you have all the information you need to optimize your printing experience.

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PRINT DRUM SECTION

[ 8 - 18 ]

A

A

B

A: Ink sensor cover
B: Ink sensor PCB

0840

0841

0842

10. Removing the Ink Sensor PCB

(1) Pull out the print drum, and remove the following components.

• Screen
• Print drum body

(2) Unplug the connector on the ink sensor PCB [B].
(3) Remove the ink sensor cover [A] mounting screws (double-washer, M3 x 8: 2 pcs), and detach the

ink sensor cover [A].

(4) Remove the ink sensor PCB [B] from the ink sensor cover [A].

[Work Precautions]

• Take care not to fold or bend the ink sensor or overflow sensor.

If they are bent, straighten them out by hand.

[Checking after Reassembly]

• Check that the ink sensor does not touch the doctor roller or driven shaft.

Summary of Contents for RP-255

Page 1: ...information is strictly prohibited without the consent of a member of RISO International Group RISO INTERNATIONAL GROUP RISO KAGAKU CORPORATION JAPAN RISO DEUTSCHLAND GMBH GERMANY RISO INC U S A RISO...

Page 2: ...ER 10 MASTER REMOVAL SECTION CHAPTER 11 FB ORIGINAL SCANNING SECTION New Scanner CHAPTER 12 FB ORIGINAL SCANNING SECTION Previous Scanner CHAPTER 13 AF SCANNING SECTION RN25 Series CHAPTER 14 AF SCANN...

Page 3: ...ns 2 6 5 Outline of Master removal Master making and Master loading Operations 2 7 CHAPTER 3 MAIN DRIVE SECTION Mechanism 3 2 1 Main Drive Section 3 2 2 Main Motor Safety Mechanism 3 3 3 Print Drum Po...

Page 4: ...n Adjustment RN25 Series 4 21 1 2 Upper Limit Sensor Position Adjustment RN20 21 Series 4 22 2 Stripper Unit Adjustment 4 23 3 Paper Feed Clutch ON Angle Adjustment 4 24 4 Paper Feed Clutch ON Angle A...

Page 5: ...7 11 4 Removing the Transfer Plate 7 12 5 Removing the Paper Ejection Motor and Encoder Sensor 7 13 6 Removing the Wing HP Sensor 7 14 7 Removing the Paper Ejection Wing Shafts 7 15 8 Removing the Pap...

Page 6: ...8 25 2 Squeegee Gap Adjustment 8 26 3 Ink Blocking Plate Position Adjustment 8 27 4 Squeegee Pressure Balance Adjustment 8 28 CHAPTER 9 MASTER CLAMP SECTION Mechanism 9 2 1 Clamp Unit Home Positioning...

Page 7: ...11 12 5 Removing the CCD Unit 11 13 6 Removing the FB AF HP Sensor 11 14 7 Removing the Flatbed Read Pulse Motor 11 15 Adjustment 11 16 1 FB Read Pulse Motor Speed Adjustment 11 16 2 FB Scan Start Po...

Page 8: ...emoving the Original IN Sensor 13 12 6 Removing the AF Read Pulse Motor 13 13 7 Removing Other Rollers 13 14 Adjustment 13 21 1 AF Read Pulse Motor Speed Adjustment Image Elongation and Shrinkage Adju...

Page 9: ...15 15 5 Removing the Thermal Print Head 15 16 6 Removing the Master Loading Unit 15 17 7 Removing the Thermal Pressure Motor 15 18 Adjustment 15 19 1 Thermal Power of Thermal Print Head 15 19 2 Master...

Page 10: ...21 Print Drum Solenoid Lock Release 16 22 5 Print Adjustment Operations 16 23 Print Speed Change 16 23 Print Density Change 16 23 Vertical Print Positioning Operation 16 24 Master Removal Operations 1...

Page 11: ...t check errors 17 30 D01 D02 D03 D04 D05 D07 D09 D10 D11 6 Warning Serviceman call 17 32 E01 E02 7 Warning Other 17 33 F01 F02 F04 F05 F10 F14 F16 F21 F22 F23 F25 F32 F37 F43 F49 F50 F51 F52 F53 F54 F...

Page 12: ...e No 688 to 699 18 24 10 Accessories 1 Test Mode 18 25 Test Mode No 700 to 759 18 25 Test Mode No 772 to 786 18 26 Test Mode No 787 to 796 18 27 Test Mode No 797 to 798 18 28 11 Factory Check Mode Dev...

Page 13: ...onnections 21 2 1 Block Chart 21 2 2 Power supply section 21 3 3 Panel Section 21 4 4 Drive Section 21 5 5 Master Removal Section 21 6 6 Paper Feed Section 21 7 7 Print Drum Section 21 8 8 Paper Eject...

Page 14: ...Precautions 1 6 4 1 Unpacking RN25 series 1 10 4 2 Unpacking RN20 21 series 1 12 5 Installation Procedure for the RN B4 Inkless Print Cylinder Drum 1 13 6 Exterior Cover Removal 1 15 7 Opening the PC...

Page 15: ...used 3 When replacing screws etc be sure to use the specified sizes Assembly and Installation Unless specified otherwise perform the removal procedures in reverse during assembly and installation In c...

Page 16: ...ded into the following four types interrupt types U shaped actuator types reflective types and transmittive types Magnetic sensors use Hall ICs which react to the magnetic force in magnets Always turn...

Page 17: ...MAINTENANCE 1 4 Drum stand 015 26836 002 Adjuster 7 015 26128 008 The parts numbers are subject to change without prior notice 2 Jigs General jigs 0105 0106...

Page 18: ...aster removal M overcurrent DRMHP Print drum withdrawal switch SCNHP Flatbed HP sensor STGCV Stage cover sensor ORGDT Original detection sensor CPRS Compression HP sensor REMV Master jam sensor FULL M...

Page 19: ...mperature range 15 C 30 C Humidity range 40 70 No condensation allowed 4 Those near sources of fire or heat or exposed to heat and any locations in the direct path of air from air conditioners or heat...

Page 20: ...the printer or apply impact to it Storage of consumables Store consumables such as paper masters ink and spare print drums properly Do not store them in any of the following locations Where they will...

Page 21: ...carbon coating on back Transparent sheets such as OHP films and tracing paper Paper with an extremely smooth surface such as art paper or coated paper Cautions regarding printing paper Types of copy...

Page 22: ...MAINTENANCE 1 9 NOTE...

Page 23: ...may cause damage to the printer Open the master roll cover and remove the screw which locks the scanner table Open the scanner table and unscrew the scanner unit securing screw Then remove the screw...

Page 24: ...ding unit and remove the shock absorbing sheets Start up the test mode of the printer and activate the Scanner release action No 155 Remove the adhesive cover sheet from the User s guide case and affi...

Page 25: ...rinter Open the master roll cover and remove the screw which locks the scanner table Open the sanner table and release the scanner unit securing screw 3 Remove the shock absorbing blocks on both sides...

Page 26: ...press the Stop key to turn off the indication If the operation is interrupted before Finished appears due to an error execute Test Mode No 575 again The print drum code normally becomes effective afte...

Page 27: ...MAINTENANCE 1 14 MEMO...

Page 28: ...g the power cord and remove the outer covers FRONT COVER Remove the mounting screws bind M4 x 8 2 pcs remove the lower hinge and dismount the front cover FRONT FRAME COVER Pull out the print drum remo...

Page 29: ...s bind M3 x 5 1 pc each from the two controller connector locks and dismount the two connector locks Remove screws bind M4 x 8 4 pcs and remove the rear cover MASTER REMOVAL LOWER COVER Remove the mas...

Page 30: ...0 1 pc from each of the two hinges right and left of the stage cover and then as shown on the photograph attach those screws in the screw holes behind Remove screw bind M4 x 8 1 pc on the scanner unit...

Page 31: ...t cover rear SCANNER UNIT COVER LEFT Remove mounting screw bind M4 x 8 4 pcs and remove the scanner unit cover left SCANNER UNIT COVER REAR Remove the stage cover Remove mounting screw bind M4 x 8 4 p...

Page 32: ...ER FRONT Open the scanner table Remove the mounting screws bind M4 x 8 3 pcs and dismount the scanner table SCANNER UNIT COVER RIGHT Remove scanner unit cover front and scanner unit cover rear Remove...

Page 33: ...isallows master making operations Remove the wire harness from the three wire saddles on the main PCB bracket Remove the five mounting screws double washer M4 x 8 from the main PCB bracket and open th...

Page 34: ...ing the System PCB bracket Remove the rear cover Disconnect two connectors from the System PCB Remove the four mounting screws bind M3 x 5 and open the System PCB bracket System PCB System PCB bracket...

Page 35: ...er Remove screws double washer M3 x 6 2 pcs and pull the controller a little bit to the front just enough to clear the half pierced sections and slide the controller out of the machine Controller Half...

Page 36: ...arness support plate Disconnect all the connectors from the main PCB remove screws bind M3 x 5 6 pcs and then remove the main PCB together with the main PCB support bracket B Precautions on Reassembly...

Page 37: ...T A Unplug the connector of the FB junction wire harness from the junction connector and then detach the junction connector from the main PCB support bracket A Remove seven snap bands from the main PC...

Page 38: ...ns RN25 Series 2 2 1 2 Specifications RN20 21 Series 2 3 2 Cross Sectional Diagram 2 4 3 Operation Outline 2 5 4 Outline of Paper feeding Printing and Paper ejection Operations 2 6 5 Outline of Master...

Page 39: ...210x290mm Paper Capacity Feed Tray 1 000 sheets 64g m2 or 16 lb bond Receiving Tray 1 000 sheets 64g m2 or 16 lb bond Print Speed 5 selectable print speeds 60 to 130 copies per minute Dimensions In u...

Page 40: ...mm RN2130 8 3 x14 0 RN2100 204x290mm A4 Drum RN2050 251x357mm RN2030 8 3 x14 0 RN2000 204x290mm A4 Drum 8 3 x11 4 Letter Cylinder Paper Feed Feed Tray 1 000 sheets 64g m2or 16 lb bond Receiving Tray 1...

Page 41: ...es ink from the ink cartridge to the surface of the print drum for printing 6 Clamp unit Clamps the leading edge of a master 7 Master removal section Peels the master from the print drum after use and...

Page 42: ...aking operation The original is scanned by the image sensor and the image is transferred onto a master by the thermal print head Master loading operation The produced master is wound around the print...

Page 43: ...pressure section This operation is referred to as the second paper feed drive To prevent tension from being placed on the end of the paper the scraper roller and pickup roller are free to spin 4 When...

Page 44: ...The vertical transport roller and print drum rotate thereby separating the master and sending it to the master disposal box 3 The motion of the compression plate starts pressing the master into the ma...

Page 45: ...MACHINE SUMMARY 2 8 Memo...

Page 46: ...Motor Safety Mechanism 3 3 3 Print Drum Position Check Mechanism 3 4 Disassembly 3 6 1 Removing the Main Motor Unit 3 6 2 Removing the Flatbed Set Switch 3 8 3 Removing the Print Drum Safety Switch 3...

Page 47: ...ates and the rotation is transmitted to the print drum pulley D via the main belt C The main motor encoder sensor E detects the speed and position of the main motor A A Main motor B Main pulley C Main...

Page 48: ...in Motor Safety Mechanism Two safety switches flatbed set switch A and print drum safety switch B prevent the motor from being turned on if parts are not positioned A B A Flatbed set switch B Print dr...

Page 49: ...and position A detection plate B on the print drum Position A refers to the position where the print drum is located after the position A detection plate blocks the optical axis of the position A sens...

Page 50: ...MAIN DRIVE SECTION 3 5 Memo...

Page 51: ...educe the tension on the paper feed timing belt A Loosen the retaining screws on the idler A ass y B 3 Reduce the tension on the main belt C Loosen the retaining screws on the Idler B ass y D Loosen t...

Page 52: ...ockwise to apply tension to the main belt E L M E D J K F H I RN20 21 Series I N F H Main motor unit RN25 Series Main motor unit A Paper feed timing belt B Idler A ass y C Main belt D Idler B ass y E...

Page 53: ...2 pcs and then remove the entire flatbed set switch cover A 3 Remove the E ring remove the torsion spring E and then remove the flatbed set switch B together with the sensor bracket D 4 Remove the mou...

Page 54: ...rs Front door Front cover 3 Remove the print drum safety switch cover B bind M4 x 6 2 pcs 4 Unplug the connector C remove the mounting screws washer M3 x 14 2 pcs and then remove the print drum safety...

Page 55: ...PCB 3 Remove the following parts Print positioning unit A Pressure lever ass y B 4 Loosen the screws on the idler B ass y C and idler C ass y D and decrease the main belt tension 5 Remove the mountin...

Page 56: ...utions on Reassembly When fitting the R stay ass y main belt and pressure cam press down on the separator arm I to prevent contact with the pressure cam After installing the print positioning unit adj...

Page 57: ...able 4 Open the master disposal gate housing press down the clamp open arm plate by hand and check that it slots smoothly into the groove in the position A 5 If it does not slot smoothly into the posi...

Page 58: ...ing the Feed Tray Descent Button and Upper Limit Sensor RN25 Series 4 13 4 2 Removing the Feed Tray Descent Button and Upper Limit Sensor RN20 21 Series 4 14 5 Removing the Paper Feed Clutch 4 15 6 Re...

Page 59: ...when the paper width is between 292 mm and 297 mm With RN20 21 Series the paper feed tray can be moved 10 mm to the right or left when the paper width is 274 mm or less or 5 mm to the right or left wh...

Page 60: ...is confirmed here by the pressure detection sensor I The upper limit position change described above is performed when Auto is selected in Test Mode No 480 If NORMAL or CARD is selected in the test mo...

Page 61: ...per remains in the paper feed tray A and the light is not received by the paper detection sensor B the elevator motor E activates and lowers the paper feed tray A until the light beam to the lower lim...

Page 62: ...sures safety while the paper feed tray is being raised or lowered or is stationary If the safety switch actuator plate B is depressed the paper feed tray lower safety switch C trips An error in the pa...

Page 63: ...en paper sensors I and L The print drum then rotates through a preset angle the angle set for paper feed clutch deactivation angle adjustment by test mode Nos 482 to 485 and the paper feed clutch E is...

Page 64: ...stripper pad B to ensure that only the uppermost sheet is sent into the machine The stripper pad B is pressed against the pickup roller A by the force of the stripper spring C and the resistance appl...

Page 65: ...L weak and CARD strong Moving the pressure adjust lever to the right increases the paper feed pressure scraper pressure The RN25 Series are provided with a paper feed pressure sensor B This sensor tur...

Page 66: ...ve the ground screw D Cut the wire harness band C and then pull the wire harness B towards the paper feed tray 4 Remove the E rings E from the mountings on both sides of the paper feed tray and remove...

Page 67: ...P tight M3 x 8 3 pcs 6 Unplug the connector and remove the paper detection sensor H while expanding the mounting clips 7 Unplug the connector and remove the paper size detection sensor I while expandi...

Page 68: ...n Reassembly With the fence opened fully mount the spur gear L and the flat face of the potentiometer shaft M facing the printer body See photograph below Be sure to adjust the paper width potentiomet...

Page 69: ...tch off the power 2 Remove the lock ring E from the end of the pickup roller shaft A 3 Slide the pickup roller B off the pickup roller shaft A Precautions on Reassembly The scraper and pickup roller c...

Page 70: ...sensor B B together with the W upper limit sensor detection plate A C 3 Remove the mounting screws RS tight M4 x 8 2 pcs disconnect the connector and remove the feed tray descent button D together wi...

Page 71: ...he upper limit sensor B together with the upper limit sensor bracket C 3 Remove the mounting screws RS tight M4 x 8 2 pcs unplug the connector D and then remove the feed tray descent button E together...

Page 72: ...and remove the paper feed clutch D Precautions on Reassembly Align the flat face of the pickup roller shaft G with that on the paper feed clutch D Engage the slot H on the clutch with the clutch lock...

Page 73: ...nsor 4 Remove the paper feed clutch 5 Remove the E rings and bearing bushes A on either end of the pickup roller shaft 6 Remove the mounting screw RS tight 4 x 8 1 pc on the shaft bracket B remove the...

Page 74: ...onnectors F 4 Remove the mounting screws double washer M4 x 6 4 pcs and hang free the drive PCB A together with its mounting bracket 5 Remove the mounting screws RS tight M4 x 8 2 pcs C disconnect the...

Page 75: ...er to be inserted in the mounting screws on the grip handle A Make sure that the rubber feet do not slip off the Risograph stand 4 From underneath the machine remove the mounting screws bind M4 x 8 2...

Page 76: ...Place a finger on the top of the stripper unit A and pull it forward to remove it Precautions on Reassembly Be sure to keep the stripper pad ass y B fully pushed back when installing the stripper unit...

Page 77: ...t 2 Lift up the stripper pad ass y A by hand and remove it Precautions on Reassembly To attach the stripper pad B firmly press the bottom of the stripper pad B onto the face of the stripper pad base C...

Page 78: ...nge detach the master disposal box 5 Loosen the mounting screw B on the upper limit sensor bracket A and adjust by sliding the upper limit sensor up or down Paper feed tray up down Test Mode No 452 do...

Page 79: ...ithin the specifications detach the master removal box and remove the master removal lower cover 5 Loosen the mounting screw B on the upper limit sensor bracket A and adjust by sliding the upper limit...

Page 80: ...pad angle and pressure 1 Multiple feeding Turn the stripper pad angle adjust knob A clockwise to increase the stripper pad angle raise the pad more vertically Turn the stripper pressure adjust knob B...

Page 81: ...y and print to make sure paper is fed smoothly into the machine 2 If the first stage paper feed timing is not synchronized adjust using Test Mode No 494 paper feed clutch ON angle adjustment A3 in acc...

Page 82: ...o 451 Paper Width Potentiometer Compensation 210 297 mm 4 Set the fence position to 105 mm Start Test Mode No 471 Paper Width mm and make sure the indication shows a value of between 1040 and 1060 105...

Page 83: ...FIRST PAPER FEED SECTION 4 26 Memo...

Page 84: ...ving the Guide Roller Ass y 5 6 2 Removing the Paper Guide Plate Ass y 5 7 3 Removing the Paper Sensor 5 9 4 Removing the Timing Roller 5 10 5 Removing the Print Positioning Unit 5 12 6 Removing the V...

Page 85: ...ransferred The load spring H continuously applies a load to the timing roller G to ensure that the timing roller G stops immediately when it is not rotated The timing roller G rotation also rotates th...

Page 86: ...he main cam A This rotates the timing cam B which lowers the timing lever C to lower the guide roller D Second paper feed start Upon completion of the first paper feeding operation the main cam A turn...

Page 87: ...ss y C motion moves the print positioning lever ass y E changing the timing with the main cam The second paper feed timing roller rotation start timing is thus changed changing the vertical printing p...

Page 88: ...he contact of the bearing E against the main cam A is advanced causing the second paper feed timing to advance and moves the print position up 2 Pressing the down key on the panel When the key is pres...

Page 89: ...he PCB cover and open the main PCB bracket Rn 20 21 Series Remove the controller 3 Remove the guide roller spring A 4 Remove the timing lever ass y B double washer M4 x 8 1 pc 5 Remove the E rings C a...

Page 90: ...per feed clutch Pickup roller shaft ass y Elevator motor Guide roller ass y 3 RN25 Series Remove the PCB cover and open the main PCB bracket RN20 21 Series Remove the controller and the main PCB 4 Loo...

Page 91: ...utions on Reassembly Hook the paper guide plate A onto the timing roller bearing bushes B See enlarged view Align the half pierced sections of the front and rear elevator racks Align the gear height f...

Page 92: ...ide plate 3 Unplug the paper sensor connector A from the paper guide plate F 4 Remove the paper sensor send B mounting screw bind M3 x 8 1 pc and paper sensor receive C mounting screw bind M3 x 8 1 pc...

Page 93: ...r ass y Paper guide plate 3 Remove the E ring from the rear of the timing roller A then remove the timing cam B 4 Remove the E ring and collar C from the front of the timing roller A then remove the l...

Page 94: ...SECOND PAPER FEED SECTION 5 11 A D C Load spring mounting direction E A Timing roller B Timing cam C Collar D Load spring E Bearing bush 0516...

Page 95: ...remove the cam follower arm D and washers F one each on the front and rear of the cam follower arm D from the timing gear E 6 Remove the mounting screws RS tight M4 x 8 6 pcs on the print positioning...

Page 96: ...e connector remove the mounting screw double washer 3 x 6 1 pc and then remove the vertical centering sensor B together with the vertical centering sensor bracket C Precautions on Reassembly Align the...

Page 97: ...E ring and remove the print positioning intermediate gear C 6 Remove the mounting screws double washer M3 x 6 2 pcs on the print positioning pulse motor D and then remove the print positioning pulse m...

Page 98: ...Series Remove the controller 3 Remove the following components Guide roller spring Timing cam A Timing gear spring B Print positioning unit C 3 Remove the E ring from the timing gear shaft E and remov...

Page 99: ...positioning marks C on the timing gear B and timing cam A are aligned see photograph 1 The alignment may be offset in the direction indicated in photograph 2 but it must not be offset in the directio...

Page 100: ...ol Mechanism 6 4 Disassembly 6 5 1 Removing the Pressure Roller 6 5 2 Removing the Pressure Solenoid 6 6 3 Removing the Pressure Lever Ass y 6 7 4 Removing the Pressure Control Motor and Print Pressur...

Page 101: ...he pressure cam A has passed pressure lever A B rotates counterclockwise Likewise pressure lever B C is pulled by the tension of the pressure spring D and second pressure spring E and rotates in uniso...

Page 102: ...ure roller is raised A B C G A B C H Pressure roller is lowered A Pressure cam B Pressure lever A C Pressure lever B D Pressure spring E Second pressure spring F Pressure solenoid G Solenoid lever H P...

Page 103: ...by varying the pressure of the pressure roller against the print drum The pressure control motor is not actually activated until the Start key is pressed The printing pressure will vary depending on t...

Page 104: ...screwdriver through the opening in the front frame of the machine and remove the retaining screw B 3 Slide the pressure roller A forward until the bearing C disengages from the pressure roller bracke...

Page 105: ...mounting screws RS tight M4 x 8 4 pcs on the solenoid base ass y E and then remove the solenoid base ass y E 5 Unplug the pressure solenoid connector G remove the mounting screws washer M3 x 6 2 pcs...

Page 106: ...4 Remove both the second pressure spring and pressure spring 5 Loosen the two set screws D on pressure lever B A using an allen wrench 3 mm and remove the pressure lever ass y pressure lever A B pres...

Page 107: ...ol Sensor 1 Remove the rear cover 2 Remove the mounting screws on the filter PCB unit and then pull it forward 3 Unplug the connector E on the print pressure control sensor D remove the mounting screw...

Page 108: ...PRESS SECTION 6 9 Memo...

Page 109: ...o set screws on pressure lever B A Insert a 3 mm allen wrench C between pressure lever A B and pressure lever B A see detailed figure 1 rotate the pressure shaft E fully counter clockwise and then tig...

Page 110: ...PRESS SECTION 6 11 Detailed figure 1 Detailed figure 2 A A B B C 1 5 2 0 m m 0616 0617 A Pressure lever B B Pressure lever A C Allen wrench 3 mm D Solenoid lever E Pressure shaft...

Page 111: ...PRESS SECTION 6 12 Memo...

Page 112: ...ing the Paper Ejection Motor and Encoder Sensor 7 13 6 Removing the Wing HP Sensor 7 14 7 Removing the Paper Ejection Wing Shafts 7 15 8 Removing the Paper Ejection Wing Motor RN25 Series 7 17 9 Remov...

Page 113: ...hese suck the paper onto the transfer belts E The paper receiving sensor A checks whether the paper is ejected correctly To ensure the smooth ejection of paper from the print drum the encoder sensor G...

Page 114: ...s pushed by the pressure cam F on the print drum pulley This also pushes the separator lever H and the separation shaft B rotates causing the separator A to move away from the print drum Likewise when...

Page 115: ...checks the wing cam position The right and left hand paper ejection wings on the paper receiving tray can be set to one of four positions 1 to 4 depending on the paper size width only and paper feed...

Page 116: ...in size RN25 Series Paper feed pressure lever set to NORMAL and paper width potentiometer set to a size greater than A4 RN20 21 Series Left wing lever lowered and right wing lever raised 3 Lowered pos...

Page 117: ...he paper receiving tray A bind M4 x 6 1 pc each 2 Fold down the fences on the paper receiving tray and close the paper receiving tray to an angle slightly greater than 45 degrees Lifting the paper rec...

Page 118: ...over and detach the paper receiving tray 2 Remove the mounting screws bind M4 x 8 4 pcs and detach the suction unit cover A A Suction unit cover B Connectors C Suction unit 3 Disconnect the two suctio...

Page 119: ...detach the paper receiving tray 2 Remove the mounting screws bind M4 x 8 4 pcs and detach the suction unit cover A 3 Disconnect the suction unit connector B 4 Remove the mounting screws bind M4 x 8 2...

Page 120: ...installing the suction unit cover A confirm that the protrusions D on the rear of the wing levers are positioned at the locations of the suction unit indicated in the photographs below D Protrusions o...

Page 121: ...sembly All Models Hook the indented sections G at the right and left hand edges of the suction unit onto the pins H on the side panels of the main unit G Indented section at the suction unit front edg...

Page 122: ...cover and remove the following components Paper receiving tray Suction unit cover Suction unit 2 Turn the suction unit A upside down and unplug the suction fan connector B 3 Remove the mounting screw...

Page 123: ...the conveyor pulleys A by hand disengage them from the notched sections on the suction unit and remove them A Conveyor pulleys B Transfer plate C Transfer belts 3 Remove the mounting screws RS tight...

Page 124: ...nect the connector B of the paper ejection motor A 3 Remove the paper ejection motor timing belt C the paper ejection motor mounting screws washer M3 x 5 3 pcs and then remove the paper ejection motor...

Page 125: ...move the following parts Paper receiving tray Suction unit cover Suction unit Transfer plate 2 Disconnect the connector B of the wing HP sensor A 3 Remove the mounting screw RS tight M3 x 6 1 pc and d...

Page 126: ...etach the rear cover and remove the following parts Paper receiving tray Suction unit cover Suction unit Transfer plate Connection plate A RN20 21 Series only 2 From the rear of the suction unit remov...

Page 127: ...from the protrusions L on the suction unit base 7 Remove the E ring from one side of the wing shaft K By sliding the wing shaft remove the M wing F G M wing R I M wing spring F E and M wing spring R...

Page 128: ...ction unit cover Suction unit Transfer plate Paper ejection wings wing shafts 2 Disconnect the connector remove the mounting screws double washer M3 x 6 2 pcs and detach the paper ejection wing motor...

Page 129: ...on the left and right of the belt pulley shaft C and remove the transfer belts D by sliding them off the belt pulley shaft C A Paper ejection motor belt B Left and right belt pulley shaft E rings C Be...

Page 130: ...aration fan unit C and remove the separation fan unit by sliding it in the same direction that paper is ejected A Separation fan unit connector B Mounting screws bind M4 x 8 2 pcs C Separation fan uni...

Page 131: ...on fan connectors D 4 Remove the mounting screws bind M3 x 12 3 pcs each B from the two separation fans C and remove both separation fans C A Nozzle mounting screw P tight M3 x 10 3 pcs B Separation f...

Page 132: ...band A to the side and detach the hose The air hose band s knob points upwards 3 Remove the separator mounting screw double washer M3 x 8 1 pc B Remove the release arm mounting screw double washer M3...

Page 133: ...from the machine side frame Do not push back the shaft more than necessary To prevent the components mounted on the rear from detaching stop pushing back the shaft once the bush in the rear has been r...

Page 134: ...e separator mounting screw double washer M3 x 8 1 pc A 3 Remove the release arm mounting screw double washer M3 x 8 1 pc B 4 Remove the E ring C on the end of the separation shaft and remove the beari...

Page 135: ...ent the components mounted on the rear from detaching stop pushing back the shaft once the bush in the rear has been removed 6 Slide the separator and release arm forward and remove both of these part...

Page 136: ...and detach the hose 4 Remove the four air pump cylinder mounting screws double washer M4 x 8 4pcs B and remove the air pump cylinder 5 Loosen the four air pump mounting screws cross recessed hexagon...

Page 137: ...pump cam F 7 Remove the four air pump mounting screws double washer M4 x 14 4pcs C and then remove the air pump bracket G Remove the main motor before removing the air pump belt refer to Chapter 3 Mai...

Page 138: ...ir pump cam A with the alignment mark D on the air pump bracket C inserting a 2 5 mm allen wrench into the holes in the air pump cam and air pump bracket and aligning the air pump cam position with th...

Page 139: ...n the retaining screw D on the separator positioning plate 4 Insert a penlight deep into the suction unit and position the separator E so that its tip is visible through the square hole on the side pa...

Page 140: ...witch PCB 8 9 3 Removing the Ink Cartridge Set Switch PCB Mounting Bracket 8 10 4 Removing the Swing Base Ass y 8 11 5 Removing the Ink Cartridge Guide Bottom Ass y 8 12 6 Removing the Ink Pump Unit a...

Page 141: ...he information checked by the master sensor is stored until either the print drum is pulled out or the power is switched off Subsequent printing therefore starts immediately after the Start key is pre...

Page 142: ...mitted when the levers are gripped and blocked when they are released The light beam of print drum set sensor A is therefore transmitted if the print drum is not correctly set in the machine A Print d...

Page 143: ...PCB B has three sensors The combination C of the cartridge set sensors pressed by the protrusions D at the tip of the ink cartridge is used to determine whether the correct ink cartridge is installed...

Page 144: ...r R D via the gears to rotate the squeegee roller E The squeegee roller E drives the driven shaft H via the squeegee roller gear F F The squeegee roller gear R D contains a one way clutch to prevent t...

Page 145: ...when the ink reaches the ink sensor D The ink deposited on the squeegee roller E is made into ink bead between the squeegee roller E and doctor roller A The driven shaft is rotated to build a smooth i...

Page 146: ...rum front cover A and then remove the cover itself Removing the ink cartridge guide ass y 2 Pull the ink cartridge release lever D and open the swing base 3 Remove the mounting screws IB lock M4 x 6 2...

Page 147: ...ge guide ass y 5 Remove the mounting screws IB lock M4 x 6 2 pcs E on the drum front upper cover C and then remove without damaging the two hooks F at the inside bottom of the cover C Drum front upper...

Page 148: ...set switch PCB cover A and then remove the cover A Ink cartridge set switch PCB cover B Ink cartridge set switch PCB C Mounting screws IB lock M4 x 6 2 pcs D Mounting screws IB lock M4 x 6 3 pcs Remov...

Page 149: ...t drum front cover Ink cartridge guide ass y Drum front upper cover Ink cartridge set switch PCB cover Ink cartridge set switch PCB 2 Remove the mounting screws IB lock M4 x 6 3 pcs C on the ink cartr...

Page 150: ...int drum front cover Ink cartridge guide ass y Drum front upper cover 2 Remove the mounting screws IB lock M4 x 6 2 pcs C on the swing base ass y 3 Push the ink cartridge release lever ass y A down op...

Page 151: ...lock M4 x 6 2 pcs E on the ink intake nozzle A and detach the ink intake nozzle A from the nozzle bracket B 3 Remove the mounting screws IB lock M4 x 6 3 pcs F on the Ink cartridge guide bottom ass y...

Page 152: ...ut the ink outlet nozzle D from the ink distributor 5 Unplug the inking motor connector E remove the mounting screws IB lock M4 x 6 3 pcs on the ink pump unit F and remove the ink pump unit F D E D F...

Page 153: ...ont upper cover Ink cartridge set switch cover Ink cartridge set switch PCB mounting bracket Swing base ass y Ink cartridge guide bottom ass y 2 Remove the mounting screw washer M3 x 6 1 pc C on the p...

Page 154: ...Make a confidential master and pull out the print drum 2 Remove the two screen springs C 3 Remove the mounting screws bind M4 x 8 2 pcs which holds both the clamp plate base D and the screen E and th...

Page 155: ...ews 2 pcs B and remove the clamp plate base A 3 Peel off the tape D on the print drum body C alignment section Reuse the tape when reassembling 4 Remove the remaining 12 mounting screws bind M4 x 8 10...

Page 156: ...oop ends over the special screws With the print drum pulled by the springs install the remaining screws confirming that the spring tension is exerted on the drum Before tightening all screws remove th...

Page 157: ...on the ink sensor PCB B 3 Remove the ink sensor cover A mounting screws double washer M3 x 8 2 pcs and detach the ink sensor cover A 4 Remove the ink sensor PCB B from the ink sensor cover A Work Pre...

Page 158: ...ounting screws on the junction gear ass y A and remove the junction gear ass y A A 3 Remove the mounting screws IT M3 x 6 1 pc each from the eccentric boss stopper plates B located on both ends detach...

Page 159: ...ueegee bottom ass y H from the squeegee unit F G H F Pivot screw print drum front G Pivot screw print drum rear H Squeegee bottom ass y 0853 0854 0855 0856 L L Squeegee frames 5 With the print drum at...

Page 160: ...L Squeegee frame M Doctor roller N Driven shaft 0857 O P Q Precautions on Reassembly Align the positioning hole P in the joint gear O over the positioning holes in the drum rear frame plate and print...

Page 161: ...s y Screen Print drum body 2 Unplug the connector on the ink sensor PCB 3 Remove the mounting screws double washer M4 x 8 2 pcs on the junction gear ass y A and remove the junction gear ass y A 4 Remo...

Page 162: ...m main gear I and slide out the Print drum main gear I from the ink distributor 9 Pull the print drum support R K from the ink distributor 10 Pull the ink outlet nozzle A from the ink distributor 11 R...

Page 163: ...IG 7 D Print drum support R E Drum rear frame plate F Joint gear G Joint gear positioning holes H Junction gear ass y 0865 0866 Precautions on Reassembly 1 Use the tool print drum JIG 7 when tightenin...

Page 164: ...M4 x 6 2 pcs and tapping M3 x 10 2 pcs on the ink intake nozzle A and remove the nozzle 3 Remove the filter B and clean it Symptoms If foreign matter is drawn into the filter ink will no longer be dra...

Page 165: ...nt plate A 5 Insert the allen wrench C into the hole in the doctor roller adjust plate A and make the adjustment by moving the adjustment plate 6 Tighten the retaining screw Symptoms If the gap is too...

Page 166: ...move the plate until it is flush with the inside surface of the print drum Tighten the mounting screw Adjustment Rear 1 Pull out the print drum and loosen the mounting screw on the ink blocking plate...

Page 167: ...Loosen the two retaining screws on the squeegee frame via the opening in the print drum support F 5 Insert a slot head screwdriver via the opening in the print drum support F turn the eccentric boss A...

Page 168: ...left and right print density balance is incorrect the squeegee pressure must be readjusted Symptoms Incorrect left and right squeegee pressure causes unbalanced print density If the squeegee pressure...

Page 169: ...PRINT DRUM SECTION 8 30 Memo...

Page 170: ...chanism 9 2 1 Clamp Unit Home Positioning Mechanism 9 2 2 Clamp Plate Master Release Mechanism 9 3 3 Clamp Plate Master Clamp Mechanism 9 4 Disassembly 9 5 1 Removing the Clamp Unit 9 5 2 Removing the...

Page 171: ...have returned to the home position with the light paths to both clamp sensors A F and B G open If they are not at the home position the clamp motor C is activated to move the clamp cam assembly D and...

Page 172: ...er release arm D is then pushed down and the master release bar E is raised releasing the master from the clamp plate C The clamp motor continues to run and raises the clamp open arm B and master rele...

Page 173: ...G onto the print drum and the clamp motor activates to rotate the clamp cam A and raise the clamp open arm E The clamp motor is switched off once the light path to clamp sensor B F is opened The clam...

Page 174: ...PCB bracket RN20 21 Series Remove the main PCB 3 Unplug the clamp motor connector A and sensor connector B 4 Remove the mounting screws double washer M4 x 8 3 pcs C on the clamp unit and remove the c...

Page 175: ...Remove the clamp unit 2 Remove the mounting screws RS tight M3 x 6 2 pcs and remove the shaft support bracket D 3 Unplug the connector and remove the clamp sensor A E Removal of Clamp Sensor B 1 Remov...

Page 176: ...ical Transport Mechanism 10 4 4 Disposed Master Compression Mechanism 10 5 5 Disposal Box Safety Switch 10 8 Disassembly 10 9 1 Removing the Master Removal Hook 10 9 2 Removing the Master Removal Unit...

Page 177: ...late master removal operation is performed with the print drum at position A to release the leading edge of the master from the clamp plate 3 The master removal hook B then detaches the master from th...

Page 178: ...or not there is a master B on the drum The check operation is not performed if information that a master is present has already been stored in the machine s memory The drum rotation angle for the che...

Page 179: ...The time at which the master removal motor stops can be adjusted using Test Mode No 382 When the print drum reaches the 70 and 90 positions the master removal sensor I checks whether the master is bei...

Page 180: ...ved master vertical transport operation is complete the master compression motor operates in the compression direction to lower the master compression plate A The light path to the master compression...

Page 181: ...er compression motor operates to start master compression the master compression sensor is immediately blocked by the master compression sensor plate As the operation continues the disposal box full s...

Page 182: ...l The master full indication appears when the master compression sensor receives light without the master disposal box full sensor being blocked As the master disposal box becomes full the master comp...

Page 183: ...osal box safety switch With the master disposal box set in position the switch operating plate A ass y rotates and presses the master disposal box safety switch The master disposal box full indication...

Page 184: ...t M4 x 8 1 pc 4 Remove the master removal hook C together with the master removal hook bracket If it cannot be removed it is caught on the front screw of the master removal unit mounting screws Remove...

Page 185: ...en the lock plate A to free 2 Open the scanner table further and set the stopper plate B in the servicing position 3 Remove the front frame cover and rear cover 4 Remove the housing cover C RS tight M...

Page 186: ...mounting bracket RS tight M3 x 6 1 pc 6 Remove the detachment prevention plate E RS tight M3 x 6 1 pc 7 Remove the harness connector F and reusable band G from the master jam sensor D Magnet catch E D...

Page 187: ...ction The ends of the master disposal gate housing are engaged with the compression shaft on both sides As the sections engaged with the shaft are open on the front as shown in the diagram the master...

Page 188: ...nt and one connector L from the rear 10 Remove the screws RS tight M4 x 8 4 pcs indicated by the arrows in the diagram and dismount the master removal unit M K Connectors 2 locations on the front L Co...

Page 189: ...ve the pulley shaft 2 Remove the E rings bearings and gears on both sides of the master removal roller top A and remove the roller 3 Remove the G belts D from the master removal pulleys top C A Master...

Page 190: ...n the two screws on the H tensioner ass y B and remove the timing belt C 3 Remove the E rings bearings gears and pulleys from both sides of the master removal roller bottom D and detach the master rem...

Page 191: ...align the shaft groove E with the notch F in the sheet metal and then remove the master removal pulley bottom ass y G the master removal pulley bottom ass y is symmetrical 5 Remove the G belts H E Sh...

Page 192: ...MASTER REMOVAL SECTION 10 17 5 Removing the Master Compression Plate 1 Remove the E rings and bearings from both sides of the compression shaft A A Compression shaft A A 1040 1041 1042...

Page 193: ...the shaft to disengage the gear allowing the shaft to be rotated 3 Remove the E rings from both sides of the piston shaft D slide the shaft and then remove the piston shaft links E from both sides 4...

Page 194: ...compression plate holder remove the mounting screws IT M3 x 6 2 pcs and remove the master compression plate holder from the compression shaft A 9 Remove the compression shaft from the master compress...

Page 195: ...pcs 3 Remove the master removal motor ass y B RS tight M3 x 6 2 pcs 4 Remove the compression motor ass y C RS tight M3 x 6 2 pcs 5 Remove the master disposal box safety switch unit D RS tight R3 x 6 2...

Page 196: ...7 Book Mode Pre Scan Mechanism RN25 Series 11 8 8 Book Mode Scanning Mechanism RN20 21 Series 11 8 Disassembly 11 9 1 Removing the Scanner Unit 11 9 2 Removing the Stage Glass 11 10 3 Removing the Fl...

Page 197: ...FB ORIGINAL SCANNING SECTION 11 2 Memo...

Page 198: ...B checks whether the scanner table A is closed This switch also acts as a safety switch which cuts the power supply to the main motor and clamp motor and thermal power to the TPH if the scanner table...

Page 199: ...M and mirror No 1 M and the mirror carriage is provided with mirrors No 2 N and No 3 O The mechanism uses a full half rate mirror scanning system in which the mirror carriage moves 1 2 L mm as the lam...

Page 200: ...FB ORIGINAL SCANNING SECTION 11 5 Drive system diagram Optical system diagram A B C D E I G F J H F I K L N O Q P R M 1103 1104...

Page 201: ...f the FB AH HP sensor is OFF at the time of operation start the flatbed read pulse motor rotates in the return direction to move the lamp carriage a distance of 8 mm if the FB AF HP sensor turns ON du...

Page 202: ...e original scanning density is set to AUTO and the operation starts from the home position flatbed auto base control ABC is conducted after shading compensation is performed With an original set on th...

Page 203: ...ns off the FB read pulse motor is activated and the lamp carriage starts to move in the feed direction speed of 50 reproduction rate Once shading compensation has been performed and the lamp carriage...

Page 204: ...d pulse motor connector and detach the harness from the two cord clamps 6 Disconnect the scanner harness from the image PCB 7 Remove the four screws double washer M4 x 8 securing the scanner unit to t...

Page 205: ...stopper A 3 Remove the flat spring F B and flat spring R C IT M3 x 6 2 pcs each 4 Lift the stage glass D to remove it Stage glass reinstallation procedure 1 Place the stage glass on the scanner unit...

Page 206: ...ect the connector A and remove the flatbed original detection sensor together with the sensor cover B 3 Disengage the three claws of the flatbed original detection sensor C from the sensor cover and r...

Page 207: ...M3 x 6 2 pcs and detach the inverter cover A 4 Remove the lamp harness C from the two cord clamps B release the lock and disconnect the connector D 5 With the films F peeled from the scanner unit not...

Page 208: ...1 The replacement CCD unit has been adjusted at the factory with the positioning parts E attached to the front and rear Therefore align the holes in the positioning parts with the protrusions on the s...

Page 209: ...t scanner unit cover 2 Remove the mounting screw double washer M3 x 6 1 pc disconnect the connector A and remove the FB AF HP sensor C together with the sensor bracket B 3 Disengage the claws of the F...

Page 210: ...remove the flatbed read pulse motor C together with the bracket B 3 Remove the mounting screws double washer M3 x 6 2 pcs and detach the flatbed read pulse motor from the bracket Precautions on Reasse...

Page 211: ...justment Checks and adjustment 1 Set B4 size paper in the paper feeding tray place Test Chart No 15 on the stage glass create an original size master and print 2 Check the prints Confirm that 4 2 mm 5...

Page 212: ...Mechanism RN25 Series 12 10 7 Book Mode Scanning Mechanism RN25 Series 12 10 Disassembly 12 12 1 Removing the Scanner Unit 12 12 2 Removing the Stage Glass 12 13 3 Removing the Flatbed Original Detec...

Page 213: ...FB ORIGINAL SCANNING SECTION 12 2 Memo...

Page 214: ...ot the scanner table A has been set correctly The switch also has a safety switch function that cuts off the power supply to the main motor and clamp motor as well as the thermal power when the scanne...

Page 215: ...g the rails attached to the respective sliders The mirror carriage D carries two mirrors mirror 2 J and mirror 3 K and the lamp carriage F carries the original illumination lamp L and lamp inverter an...

Page 216: ...FB ORIGINAL SCANNING SECTION 12 5 J K L M N O P D F R A B C F G H I E D Q 1204 1205 Drive system diagram Optical system diagram...

Page 217: ...iginal illumination lamps K and lamp inverters and mirror 1 M and the mirror carriage carries the two mirrors N and O The mechanism uses a full half rate mirror scanning system in which the mirror car...

Page 218: ...FB ORIGINAL SCANNING SECTION 12 7 A B C D E F G H I S J K L M N O P Q R B C 1207 1208 Drive system diagram Optical system diagram...

Page 219: ...sensor A is checked and if it is OFF open the FB read pulse motor is activated in the return direction until the light path is blocked to move the lamp carriage B to the left in the photograph Once th...

Page 220: ...r checks whether there is an original on the stage glass A If the flatbed original detection sensor is receiving light original present the indication on the panel changes to Ready to make master 210...

Page 221: ...f the FB read pulse motor is activated and the lamp carriage starts to move in the feed direction speed of 50 reproduction rate Once shading compensation has been performed and the lamp carriage has m...

Page 222: ...FB ORIGINAL SCANNING SECTION 12 11 Memo...

Page 223: ...x 8 securing the scanner unit to the hinge plate 7 Remove the six screws double washer M4 x 8 from the scanner unit and then remove the scanner unit by lifting it upward This is a heavy precision comp...

Page 224: ...moving it slightly to the left paper feed side and then lifting 3 Lift up the left hand side paper feed side of the Stage glass C slightly and slide it out towards the paper feed side Precautions on R...

Page 225: ...or A with one screw RS tight M3 x 6 RN20 21 Series 3 Unplug the connector and remove the flatbed original detection sensor B by removing one screw IT M3 x 8 Precaution on Reassembly RN25 Series Align...

Page 226: ...x 6 4 pcs and detach the top L stay A 4 Bring the lamp carriage C to the large cutaway section on the scanner frame B from which the top L stay A was removed 5 Remove the two screws small pan head M3...

Page 227: ...rds the front b To remove the lamp on the left hand side paper feed side of the lamp carriage Standing in front of the paper feed tray push back the top portion of the lamp bracket H to unlock it from...

Page 228: ...FB ORIGINAL SCANNING SECTION 12 17 F H G H Engage Push the Lamp bracket back and then pull it up Lead wire 1223 1224 1225 1226 1227 1228...

Page 229: ...and detach the lens cover A 4 Remove the four screws double washer M3 x 8 and then remove the lens ass y B Never loosen any screws other than those indicated by the arrows in the photograph Precaution...

Page 230: ...g screws double washer M3 x 6 3 pcs 4 Remove the three cap screws M3 x 6 PW detach the ground wire and connector and then remove the lens ass y B Precautions on Reassembly Align the two half pierced s...

Page 231: ...Scanning Section New Scanner 2 FB Scan Start Position Adjustment The adjustment method is the same as that for the new scanner Refer to the adjustment instructions in Chapter 11 FB Original Scanning S...

Page 232: ...13 7 2 Removing the Original Pickup Roller 13 9 3 Removing the Original Stripper Roller 13 10 4 Removing the Original Stripper Pad Assembly 13 11 5 Removing the Original IN Sensor 13 12 6 Removing th...

Page 233: ...r G turns ON after a preset length of time the AF read pulse motor starts rotating in the forward direction This raises the pickup roller C and turns the registration roller D the two read rollers H L...

Page 234: ...Original stopper gate B AF Original detection sensor C Pickup roller D Registration roller E Original stripper roller F Original stripper pad G AF original registration sensor H Read roller 1 I White...

Page 235: ...ad pulse motor moves the lamp carriage back by 3 mm in the return direction to the AF read position The AF read pulse motor immediately rotates in the forward direction and at the same time the print...

Page 236: ...ked the original is sent a distance of 25 5 mm and then the print signal turns ON and the original scanning operation starts The pickup roller returns to the standby position When a preset length of t...

Page 237: ...F SCANNING SECTION RN25 Series A B C D E G F A AF read pulse motor B Registration roller C Read roller 1 D White roller E Paper ejection roller F AF original IN sensor G AF original ejection sensor H...

Page 238: ...p cover A by loosening the screws M4 x 6 3 pcs on the front of the top cover and removing the screws 4 x 10 2 pcs from the rear 2 Disconnect the two connectors and the reusable band C remove the screw...

Page 239: ...3 Remove the resin clips D from both sides pull the bearing metals E toward the inside and remove the original pickup assembly F by passing the drive gear on the rear of the assembly through the hole...

Page 240: ...ve the original pickup assembly refer to the removal instructions in this Chapter 2 Remove the resin clip A open the end of the K holder B and remove the pickup roller C Note that the K holder C D and...

Page 241: ...ndicated by the arrow 4 Remove the E ring D move the K holder F assembly C slightly in the direction indicated by the arrow pull out the parallel pin holding the K holder F assembly C in place from th...

Page 242: ...hrough the opening Precautions on Reassembly In putting the original stripper pad assembly D back into the AF unit place an adhesive tape E on the assembly ref photograph and elevate down the original...

Page 243: ...on the front of the top cover and removing the screws M4 x 10 2 pcs from the rear 2 Remove the screw M3 x 8 1 pc disconnect the connector and remove the AF original IN sensor A Precautions on Reassemb...

Page 244: ...r 2 Remove the screw M4 x 6 1 pc and move the harness bracket assembly A to the side 3 Remove the open lever B together with the open lever spring C 4 Detach the tension spring D remove the mounting s...

Page 245: ...A M3 x 6 2 pcs 4 Cut the band indicated by the arrow in the photograph remove the mounting screws PM4 x 10 7 pcs M4 x 10 Washer 2 pcs on the front and detach the AF mechanism unit 1320 1321 A Control...

Page 246: ...embly by removing screw M4 x 6 1 pc 8 Detach the harness bracket assembly G by removing screw M4 x 6 1 pc 9 Remove the sensor actuator disc H together with the actuator disc spring I 10 Detach the mot...

Page 247: ...13 16 CHAPTER 13 AF SCANNING SECTION RN25 Series Front Rear A C B D E Layout of the rollers A Registration roller B Read roller No 1 C White roller D Read roller No 2 E Original ejection roller 1324...

Page 248: ...from the rear side of the roller Also remove the parallel pin B at the same time 14 Remove the E ring and detach the bearing metal 15 Remove the resin clip C from the front side of the roller and det...

Page 249: ...the bearing metal 15 Remove the E ring from the front side of the roller and detach the dial D Also remove the parallel pin C at the same time 16 Remove the timing pulley assembly E remove the E ring...

Page 250: ...he roller and detach the timing pulley B Also remove the parallel pin C at the same time 14 Remove the E ring and detach the bearing metal 15 Remove the resin clip A from the front side of the roller...

Page 251: ...oller and detach the timing pulley B Also remove the parallel pin C at the same time 14 Remove the E ring and detach the bearing metal 15 Remove the resin clip A from the front side of the roller and...

Page 252: ...printing paper on the paper feed tray Make 1 to 1 size master using test chart No 11 on the AF unit and make prints 2 Lay the print on top of the original to confirm that the image elongation or shri...

Page 253: ...ginal IN Sensor Sensitivity Adjustment Adjustment 1 Without an original execute Test Mode No 752 AF Original IN Sensor Sensitivity Adjustment This will automatically adjust the sensitivity of the sens...

Page 254: ...iginal Stripper Roller 14 8 4 Removing the AF Original Detection Read and Original Ejection Sensors 14 9 5 Removing the AF Original Registration Sensor 14 10 6 Removing the AF Read Pulse Motor 14 11 7...

Page 255: ...t prevents the registration roller G from rotating here Once the pickup roller B descends to push against the original the pickup roller B and original stripper roller D rotate in the original transpo...

Page 256: ...Original stopper gate D Original stripper roller E Original stripper pad F AF registration sensor G Registration roller H Registration driven roller I Original read roller J Original ejection roller K...

Page 257: ...r scans the surface density of the original The FB read pulse motor then moves the lamp carriage back 3 a mm in the return direction normal AF original scanning position The AF read pulse motor rotate...

Page 258: ...iating a scan of the original The pickup roller returns to the standby position The read write signal is deactivated for a preset interval after the AF read sensor E is deactivated light path open whe...

Page 259: ...M3 x 10 and remove the AF cover A Finally close the AF unit 2 Remove the plastic lock rings C from both sides of the original scraper ass y B and then remove the bearing bushes D Lift up the original...

Page 260: ...Finally close the AF unit 2 Pull apart both ends of the pickup roller frame ass y B holding the pickup roller A and remove the pickup roller A Take care not to drop the washer on the right hand side...

Page 261: ...and then remove the right hand E ring D Move the pickup roller frame ass y right E to the left pull out the Pin F and then remove it to the right Take care not to drop the washer fitted to the gear s...

Page 262: ...ease the clips on the AF original detection sensor A to remove it Removing the AF read sensor 2 Remove the connector remove the screw P tight M3 x 10 and then remove the AF read sensor B After attachi...

Page 263: ...he power and open the AF unit Now remove the screw P tight M3 x 10 and remove the AF cover Finally close the AF unit 2 Remove the connector lift up the actuator and move it to the left end and release...

Page 264: ...uble washer M3 x 6 Take care not to drop the rosette washer fitted beneath the ground screw 3 Remove the AF upper guide ass y B and four screws P tight M3 x 6 4 Remove the AF read pulse motor D and tw...

Page 265: ...AF SCANNING SECTION RN20 21 Series 14 12 B D D A AF PCB B AF upper guide ass y C Ground screw D AF read pulse motor E AF read sensor 1412 1413...

Page 266: ...then remove the registration roller C Take care as the washer and thrust spring may fly out when the E ring is removed Removing the Original Read Roller 7 Remove the front clutch spring O E ring P re...

Page 267: ...4 A B C D E F G H Front Rear I J A AF upper guide ass y B Jam release dial C Registration roller D Original read roller E Original Ejection Roller F Idler G Idler spring H Timing belt I AF guide frame...

Page 268: ...14 15 Registration roller Original read roller Original ejection roller K K K L L L K K K M M M N N N N N N O Rear Front P P P Q Q Q K Washer L Thrust spring M E ring N Bearing bush O Clutch spring P...

Page 269: ...adjust using the Test Mode No 185 AF Horizontal Scan Position Adjustment 3 AF Image Elongation Shrinkage Adjustment Checks and adjustment 1 Set B4 size paper in the paper feeding tray place Test Char...

Page 270: ...skew is outside the specified parameters adjust as follows 4 Remove the screw bind M4 x 6 on the AF mount plate A rotate through 180 to open the AF unit to 90 and then loosen the two AF unit retaining...

Page 271: ...AF SCANNING SECTION RN20 21 Series 14 18 Memo...

Page 272: ...he Cutter Unit 15 14 4 Removing the Load Roller 15 15 5 Removing the Thermal Print Head 15 16 6 Removing the Master Loading Unit 15 17 7 Removing the Thermal Pressure Motor 15 18 Adjustment 15 19 1 Th...

Page 273: ...ed by the cutter home position switch E 3 Thermal Print Head Elevation Mechanism The thermal print head TPH F is raised and lowered by the thermal pressure motor G and the position is confirmed by the...

Page 274: ...nsor D Cutter motor E Cutter home position switch F Thermal print head G Thermal pressure motor H TPH pressure sensor I Write roller J Write pulse motor K Master stocker L Load pulse motor M Load roll...

Page 275: ...em is operating The master loading unit switch B confirms that the master loading unit is set and the master setting operation is performed once the master loading unit is set Master end detection The...

Page 276: ...direction and the cutter home position switch B confirms the position of the upper cutter The cutter is at the home position when it is not pressing against the cutter home position switch B and if t...

Page 277: ...e At the same time the blade cushion J descends and applies back tension to the master while it is being wound onto the print drum to prevent creases in the master Thermal print head lowered position...

Page 278: ...J I K 1506 1507 A Thermal pressure motor B Pressure release cam C TPH pivot plate D Pressure detection disc E TPH pressure sensor F Sliding plate G Blade link H Load roller No 1 top I Load roller top...

Page 279: ...ms and determines that the master loading unit is closed when the light path is blocked twice in succession The master is then checked by the master detection sensor B 2 The thermal print head is lowe...

Page 280: ...waits for scanning system preparations to be completed 3 Once master making can be started the write pulse motor operates to transport the master to the writing start position before master making com...

Page 281: ...the light path to the sensor is blocked no master If the light path to the sensor is open it is determined that an error has occurred In this case the cutting operation is repeated the Master position...

Page 282: ...bracket screws RS tight M4 x 8 2 pcs on the write pulse motor B and remove the belt C 3 Remove the pulley D Set screw M2 x 6 1 pc 4 Remove the bearing stopper E and pull out the bearing RS tight M4 x...

Page 283: ...on the tension assembly B loosen the mounting bracket screws RS tight M4 x 8 2 pcs on the load pulse motor C and then remove the belt 3 Remove the pulley D Set screw M2 x 6 1 pc 4 Remove the bearing f...

Page 284: ...Remove the master set guide H RS tight M4 x 8 2 pcs F Master cover G Master holder H Master set guide 8 Unplug the rear connector and remove the stocker cover I RS tight M4 x 8 2 pcs 9 Remove the spr...

Page 285: ...er loading unit 3 Unplug the rear connector and remove the cutter cover A RS tight M4 x 8 2 pcs 4 Remove the cutter guide plate C RS tight M4 x 8 2 pcs 5 Remove the cutter unit mounting screws Stepped...

Page 286: ...e and open the master loading unit 3 Remove the cutter unit 4 Remove the loading guide bottom E RS tight M4 x 8 2 pcs 5 Loosen the screw RS tight M4 x 8 1 pc on the tension assembly A and remove the t...

Page 287: ...ottom cover A Screws only need be loosened 2 Remove the ground wire B mounting screw RS tight M3 x 6 1 pc 3 Remove the mounting screws on the TPH bracket C IT M3 x 6 2 pcs 4 Unplug the two connectors...

Page 288: ...M3 x 6 4 pcs 3 Remove the wire harness and ground wire C and place them on the master loading unit 4 Open the master disposal gate housing D 5 With the master loading unit opened as wide as possible...

Page 289: ...e TPH unit 2 Remove the E rings and bearings and then remove the load roller No 1 top A 3 Remove the de electricity brush plate B RS tight M3 x 6 2 pcs 4 Remove the thermal pressure motor C as a unit...

Page 290: ...VR401 coarse adjustment and VR402 fine adjustment on the Power supply unit RN20 21 Series Checks and adjustment 1 Switch off the power to the system 2 Connect a multimeter across pin 1 and pin 3 of CN...

Page 291: ...8 1560 1577 16 8 2244 2271 15 9 1578 1596 16 9 2272 2300 16 0 1597 1615 17 0 2301 2329 16 1 1616 1634 17 1 2330 2358 16 2 1635 1653 17 2 2359 2387 16 3 1654 1672 17 3 2388 2416 16 4 1673 1692 17 4 24...

Page 292: ...ng the settings increases the amount of protrusion Note The relative positioning of already made masters wound onto the print drum will change if the clamp range is adjusted The master scanning start...

Page 293: ...ed flag test print image 2 Cover the print drum surface with a paper in landscape way aligning the leading edge of the paper against the marking on the print drum support on both ends of the drum as s...

Page 294: ...ment Checks and adjustment 1 Run the Test Mode No 050 Test Print checkered flag image remove the master created from the print drum and measure the length of the image The master making length is corr...

Page 295: ...MASTER MAKING SECTION 15 24...

Page 296: ...vator Lower Operation 16 17 Elevator Servo Operation 16 18 4 Print Drum Peripheral Operations 16 19 Clamp Release 16 19 Master Clamp Operation 16 20 Inking Operation No Ink Detection 16 21 Inking Oper...

Page 297: ...ions when the power is switched on or when everything is reset Scanner Thermal print head Master compression plate Clamp unit Paper ejection wing Vertical printing position Pressure control Initializa...

Page 298: ...essing direction until the TPH pressure sensor goes OFF 2 A time out occurs at 2 seconds here and error message T19 207 is displayed 3 The thermal pressure motor operates in the release direction unti...

Page 299: ...sensor is checked on starting and the operation starts from Start 1 if it is ON and from Start 2 if it is OFF At Start 1 the master compression motor operates in the compressing direction until the m...

Page 300: ...n the clockwise direction until the wing HP sensor turns OFF 2 A timeout occurs at 7 seconds here and an error message T20 415 is displayed 3 After the wing HP sensor switches from ON to OFF the paper...

Page 301: ...ialization Operation 1605 Start 1 End ON OFF Max 18 mm Error 603 Vertical centering sensor Print positioning pulse motor OFF UP DOWN Start 2 Max 18 mm Error 604 A 100 ms 100 ms On Start 2 1 2 3 4 5 Wh...

Page 302: ...ON At Start 1 the pressure control motor operates in the direction of compression until the print pressure control sensor goes ON 2 A time out occurs at 3200 pulses here and error message T11 600 is...

Page 303: ...TIMING CHARTS 16 8 Memo...

Page 304: ...l printing position Print pressure change Print start Printing in progress End of printing Paper ejection wing Master check Inking overflow detection Reset Vertical adjustment single operation Adjustm...

Page 305: ...er detection at press section Position A sensor Paper sensor Paper receiving sensor Paper detection sensor Main motor Paper feed clutch Pressure solenoid Paper ejection motor Suction fan Separation fa...

Page 306: ...495 through 498 a 65 NORMAL 67 CARD 65 THIN 67 CUSTOM 4 The paper is transported and the paper feed clutch is deactivated once the print drum has rotated B from when the paper is detected by the pape...

Page 307: ...ection sensor Main motor Paper feed clutch Pressure solenoid Paper ejection motor Suction fan Separation fan Copy count signal ON OFF Paper detected No paper 0 A C 0 180 100 180 0 0 D E C 100 E 20 180...

Page 308: ...t drum has rotated to angle D it determines that a paper jam has occurred and moves to the print end operation The paper sensor is checked at 180 before the print drum stops error message A07 409 is d...

Page 309: ...sor Paper sensor Paper receiving sensor Paper detection sensor Main motor Paper feed clutch Pressure solenoid Paper ejection motor Suction fan Separation fan Copy count signal ON OFF Paper detected No...

Page 310: ...e Nos 495 through 498 2 The paper feed operation is performed a second time and returns to the normal operation if the paper sensor detects the paper by the time the print drum has rotated to angle C...

Page 311: ...T02 400 is displayed if both the upper and lower limit sensors are ON at the start 3 The elevator motor overload current is continually monitored at 20 ms intervals while the elevator is operating and...

Page 312: ...is OFF the elevator operates until the lower limit sensor goes ON 2 The elevator motor overload current is continually monitored at 20 ms intervals while the elevator is operating and error message T...

Page 313: ...limit sensor goes ON 2 The elevator motor overload current is continually monitored at 20 ms intervals while the elevator is operating and error message T02 401 is displayed if an overload current is...

Page 314: ...on on starting 2 A time out occurs and error message T03 503 is displayed if clamp sensor B does not go ON within 1 second of the clamp motor starting 3 A timeout occurs and an error message T03 504 i...

Page 315: ...ng 3 A timeout occurs and an error message T03 506 is displayed if the clamp sensor A does not turn OFF within 1 second after the clamp sensor B switches from OFF to ON 4 With the clamp sensor B ON wh...

Page 316: ...splayed Normally A Value set in Test Mode No 583 initially 20 s After ink replacement A Value set in Test Mode No 584 initially 40 s Inking Operation Overflow Detection 1617 100 ms ON OFF ON OFF 100 m...

Page 317: ...cess the print drum release switch LED blinks 3 The print drum lock solenoid and print drum release switch LED are switched ON until the print drum set sensor goes OFF until the print drum is removed...

Page 318: ...pressed twice the speed only changes by one level per revolution and so two revolutions are required to reach the specified speed Print Density Change ON OFF UP DOWN Position A sensor Print intensity...

Page 319: ...d press is ignored if pressed while the position is being moved for the first press 3 If the print position adjustment key is pressed for more than 1 second the position is moved 0 5 mm for the first...

Page 320: ...ermal print head Master cutting Removed master vertical transport Master compressing Paper feed tray elevator Print drum Paper Ejection Wing Print pressure change Proof read print End of printing Star...

Page 321: ...e progress of the removed master is checked twice by the master removal sensor at print drum angles A and B and is judged to be normal if the sensor is ON at both points If it is OFF at one point erro...

Page 322: ...occurs at 11 seconds after the start of master compression here and error message T12 307 is displayed Similarly if 3 is not detected the disposal box is judged to be full and error message C03 313 i...

Page 323: ...rmal print head Master cutting Removed master vertical transport Master compressing Paper feed tray elevator Print drum Paper Ejection Wing Print pressure change Proof read print End of printing Start...

Page 324: ...pressure motor stops and ends the compression operation 4 A timeout occurs at 2 seconds from startup and an error message T19 217 is displayed Thermal Print Head Release Operation Start End ON OFF OF...

Page 325: ...ster detection sensor is OFF error message D05 210 is displayed 2 The master end sensor is checked at 10 ms intervals and if an end mark is detected twice in succession error message C02 200 is displa...

Page 326: ...284 2 The cutter motor operates When the cutter HP switch turns ON temporarily and then OFF again the motor stops 3 A time out occurs at 450 ms before the switch goes ON and error message T13 203 is d...

Page 327: ...d the master to the printing start position and then the write operation begins C 7 5 mm value set in Test Mode No 281 5 The load pulse motor operates to transport the leading edge of the master to th...

Page 328: ...iled information on G code errors 400 dpi machines 17 24 A07 A08 A09 A10 3 1 Option errors 17 25 B01 B02 B04 B05 B21 B22 B23 B24 B25 B26 B27 B28 B31 B33 3 2 Option errors Detailed information on G cod...

Page 329: ...er of error priority is as specified below 2 Error point The error point classifications are as specified below Error point Error description 0 9 System panel 1 Scanning section Image processing 2 Mas...

Page 330: ...otor 300 400 dpi T12 Master disposal section motor lock 300 400 dpi T13 Cutter motor lock 300 400 dpi T14 Flatbed error 300 400 dpi T15 Auto document feeder AF error 300 400 dpi T17 Solenoid counter n...

Page 331: ...tter error 300 400 dpi A18 Print drum unlocked 300 400 dpi A34 Rewind master roll 300 400 dpi Error type Description Model B01 Keycard counter No card 300 400 dpi B02 Sorter Serviceman call error 400...

Page 332: ...nt drum 300 400 dpi D03 Ink cartridge not set 300 400 dpi D04 Incorrect ink cartridge 300 400 dpi D05 Master not set 300 400 dpi D07 Master disposal box not set 300 400 dpi D09 Master making unit not...

Page 333: ...Printer Auto Selection to linked printer disabled Linked printer error Link mode machine F51 No Original on Scanner Table Duplex Scanning Mode Link mode machine F52 Printing from Linked Printer Disab...

Page 334: ...A sensor does not change while the motor is operating even after 3033 pulses have elapsed Clamp sensor A or B was activated during print drum operation except during master removal Main motor overload...

Page 335: ...ession Error conditions Error conditions The light path condition of both the clamp sensors A and B do not change within 3 seconds after the clamp motor operates during clamp initialization movement T...

Page 336: ...izer CPU Error conditions Error conditions The vertical centering sensor does not change from blocked to activated even when the print positioning pulse motor is moved 18 mm in the activating directio...

Page 337: ...tion Jam reset Recovery operation home positioning or switch power on again T11 Pressure control motor lock Panel display Error conditions Switch power on again Sorter communication The retry command...

Page 338: ...ight path of the master compression sensor does not change to unblocked condition within 7 seconds after the compression motor rotates in the decompressing direction The light path of the master compr...

Page 339: ...ffset adjustment wait Offset adjustment is not completed within the specified time Machines equipped with new scanner only 124 Timeout for gain adjustment wait Gain adjustment is not completed within...

Page 340: ...ror for receiving the Risograph AF command 131 Risograph received an undefined command from the AF unit 132 Risograph detected a communication sequence error from the AF unit 133 Risograph AF communic...

Page 341: ...hermal pressure motor activates in the pressurize direction Jam reset Error conditions Release the scanner lock using test mode Test Mode No 155 Error conditions Press Reset key If recovery has failed...

Page 342: ...key If recoveryhas failed call Service Reset method Error point 932 933 Panel display 026 400 dpi 400 dpi Press Reset key If recoveryhas failed call Service Error conditions T24 Inking motor lock Pane...

Page 343: ...set method Error point 543 544 Panel display Status not returned from the print drum even though a status request was sent Error interruption from print drum Jam reset or switch power on again Error c...

Page 344: ...s necessary to conduct the procedure for paper width potentiometer compensation adjustment from the beginning 400 dpi 300 dpi 034 Unsuccessful data input into RN EEPROM 035 Check sum error on RN EEPRO...

Page 345: ...SH PCB and MCTL PCB SH PCB side FC FD command received in a mode other than the download mode 074 Communication error 10 between SH PCB and MCTL PCB SH PCB side FE command received with MCTL PCB not...

Page 346: ...chine code of user settings properties test mode adjustment values does not match 093 Check sum of user settings properties test mode adjustment values does not match 095 Check sum of user settings pr...

Page 347: ...ng sensor was OFF master not detected when the master on the drum was checked at a specified drum angle during the master loading operation A03 Cutting error Panel display A01 Master feed error A02 Ma...

Page 348: ...stopping The paper sensor was activated three times in succession when a paper misfeed was detected paper misfeed The paper sensor was blocked at the start of operation The paper sensor was blocked w...

Page 349: ...ginal feed error 1 The original detection sensor was already receiving light when the power was turned ON or a jam was reset AF original feed error 2 The original did not leave the read sensor when th...

Page 350: ...s not cut due to cutter motor lock Panel display Master making unit sensor Unblocked Blocked master detection sensor OFF and then recovery operation Error conditions The cutter home position switch wa...

Page 351: ...per receiving sensor was blocked when paper should have arrived and the paper sensor was OFF at 180 just before stopping 400 dpi only Error type A09 Paper ejection error Error point 411 The paper rece...

Page 352: ...ervice Reset method Error point 714 715 716 Panel display Check the indication on the panel of the sorter Error conditions Keycard counter No card Insert card Error conditions Panel display 400 dpi on...

Page 353: ...ompletion after the tape output instruction is received Panel display Error conditions 400 dpi only 400 dpi only Error command Full error received from the sorter With the Tape separation function set...

Page 354: ...on Error conditions IP address is not assigned to RN With no IP address assigned the link is enabled on the linked printer Check the linked printer operation panel or network connection Error conditio...

Page 355: ...ESSAGES 17 28 3 2 Option errors Detailed information on G code errors 400 dpi machine Error type B03 Sorter Jam error Error point Error conditions 703 Error command Jam error received from the sorter...

Page 356: ...itions Paper detection sensor was blocked Master disposal box detected as full by disposal box full sensor Panel display Error conditions The master end was detected twice in succession at 10 ms inter...

Page 357: ...t sensor was activated with the print drum safety switch OFF following print drum setting Turn the print drum safety switch ON and deactivate the print drum set sensor Error conditions The print drum...

Page 358: ...scanner table Reset method Error point 213 Error type D11 Front cover not set D11 Close front cover Reset method Error point 535 Error conditions The master making unit sensor is activated sensor ligh...

Page 359: ...pi Error type E02 Maintenance Call Service 400 dpi Call Service To continue the process press the lower right Jam Reset key 300 dpi Reset method Error point 011 012 022 Jam reset Error conditions The...

Page 360: ...ster on the print drum at the start of printing F04 Original not set Multi page mode Jam reset or press the Start key Error conditions The paper size does not match the image on the print drum at the...

Page 361: ...ess the Start key Reset method Error point 031 Next original is requested on flatbed for multi up operation 300 dpi 033 The next original is not placed on flatbed for multi up operation 400 dpi Place...

Page 362: ...be used in book mode AF Cannot be Used In Book Mode Use scanner table Reset method Error point 050 The original was set on the AF with book mode set when master making is started Jam reset Error cond...

Page 363: ...x Scanning Mode Auto printer selection is disabled with current job setting Change the mode Error conditions Press START Key reverse side page scanning or STOP or RESET print front page only Error con...

Page 364: ...ditions Panel display Error conditions Auto printer selection is disabled while receiving print data from PC Panel display Link mode machine Link mode machine Panel display Auto printer selection is d...

Page 365: ...conditions Panel display Link mode machine Panel display Error conditions Auto printer selection is disabled due to initializing of NET C Close RESET or STOP to cancel or press START Key to make prin...

Page 366: ...anel display 915 L01 Communication error in MIB information acquisition Unable to transmit data even after 3 second wait No reply from the linked printer Link disconnected from the linked printer TCP...

Page 367: ...anel display 400 dpi Example When errors A08 and B03 occur the panel displays G10 Error type Error name Bit Corresponding value A10 AF original feed error Bit 0 1 B03 Sorter jam error Bit 1 2 A07 Pape...

Page 368: ...er Making Test Mode 18 14 Test Mode No 200 to 271 18 14 Test Mode No 280 to 287 18 15 6 Master Disposal Test Mode 18 16 Test Mode No 300 to 389 18 16 7 Paper Feed Eject Test Mode 18 17 Test Mode No 40...

Page 369: ...and returns to standby mode b Menu selection method 1 While in standby mode select the unit containing the test item to be run from the Test mode menu 400 dpi machines Press the unit name on the LCD...

Page 370: ...l Stop or Start key is pressed 2 A continuous audible tone buzzer is emitted to indicate an error To cancel the error press Reset key 4 Data check Press the Start key to display data Data check only d...

Page 371: ...isplay 062 Panel LED Test Runs the test display 063 Unit Initialization 064 System Configuration Data Output Creates a master for the CI system data 065 LCD Base Point Compensation Perform the follow...

Page 372: ...n m V 300 dpi Loader Version Display Displays the program loader version for both SH PCB and MCTL PCB 078 Optional Configuration Check Displays w hether any peripheral options are currently connected...

Page 373: ...e Change Description Range 0 all ON mode black priority ON in 99 to 50 shrinkage Default 0 all ON mode black priority ON in 99 to 50 shrinkage 300 dpi 300 dpi 400 dpi ALL 300 dpi 400 dpi ALL Setting S...

Page 374: ...this test mode Enter either 0 or 1 and press the Start key to set Warning Display Control Description Range 0 Disabled 1 Enabled Default 1 Enabled Description Selection of w hether to display the w a...

Page 375: ...Scanner Release Action Cancels the error status set in Test Mode No 154 156 Scanner Cycle Continuous Action For a new scanner only Repeats the motion of Test Mode No 152 AF 1 Cycle Action Performs one...

Page 376: ...chines 10 for the 300dpi machines Previous scanner Range 16 to 16 Unit 1 Default 2 for the 400 dpi machines 0 for the 300dpi machines Edge Stress Slice Level Adjustment For a new scanner only Descript...

Page 377: ...0 to 200 50 to 200 Unit 1 1 Default 100 AF Scan Image Elongation and Shrinkage Adjustment Description Adjusts original scanning speed using AF Transport motor speed Range 100 to 100 10 0 to 10 0 elong...

Page 378: ...55 Unit 1 Default 40 Smoothing Effect Photo For a new scanner only Description Adds smoothing effect on photographs effective against moire Range 0 to 15 Unit 1 Default 7 192 Scanning Speed for 1 cycl...

Page 379: ...efault 12 196 Edge Stress Level Adjustment Text Photo For a new scanner only Description Sets the threshold value for the line edge stress in text photo printing New scanner Range 0 to 31 Unit 1 Defau...

Page 380: ...ges Range 0 to 24 Refer to the halftone curve matrix below Unit 1 Default 12 199 Auto Multi Up Recovery Description Selects if the Multi up stays active or becomes inactive after one Multi up operatio...

Page 381: ...al Pressure Motor CCW 232 Write Pulse Motor CS feed 233 Write Pulse Motor CCW reverse 234 Load Pulse Motor CW feed 235 Load Pulse Motor CCW reverse 237 Cutter Motor 238 Thermal Pow er Control No Model...

Page 382: ...0 mm 286 Master Image Rear Margin Adjustment Description Range 30 to 30 3 0 mm to 3 0 mm increases margin Unit 5 0 5 mm Default 0 mm 287 Master Creation Image Elongation and Shrinkage Adjustment Descr...

Page 383: ...isposal jams Range 0 to 3600 0 to 360 Unit 10 1 Default 900 90 382 Master Disposal Motor Duration Description Sets the master removal motor stop timing after the print drum stops at position A Range 0...

Page 384: ...on 431 Suction Fan 432 Separation Fan No Model 450 Paper Size VR Adjustment 105 mm Sets a VR value of 105 mm adjustment of paper w idth potentiometer This test mode must be done before Test Mode No 45...

Page 385: ...ect Jam Det Angle OUT Description Adjusts the angle timing for detecting a paper jam during paper ejection OUT Range 150 to 150 15 0 to 15 0 delays detection Unit 2 0 2 Default 0 489 Paper Ejection Wi...

Page 386: ...N timing of the paper feed clutch for A3 paper against drum Range 0 to 100 0 to 10 0 delays ON timing Unit 2 0 2 Default 0 495 Paper Feed Clutch ON Angle Standard 496 Paper Feed Clutch ON Angle Card 4...

Page 387: ...m Withdraw al SW LED No Model 550 Variable Print Drum Rotation Use the speed keys to rotate the print drum The variable speed timing is the same as that for normal printing 551 Print Drum on Position...

Page 388: ...15 rpm 587 Ink Color Code Description Sets the ink color name on each printing drum Range 33 Black 34 Blue 35 Blue 2 36 Blue 3 37 Blue 4 38 Red 39 Red 2 40 Red 3 41 Red 4 42 Green 43 Green 2 44 Green...

Page 389: ...ilable only on 400 dpi machines 591 Drum Release Signal Control Description Settings 0 Buzzer OFF 1 Buzzer ON Default 1 Buzzer ON 592 Idling Rolling Time Selection Description Default 0 Normal number...

Page 390: ...Range 100 to 500 100 pulses to 500 pulses 70 pulses 0 5 mm shifts up Unit 1 1 pulse Default 0 0 pulse 682 Print Pressure Home Position Adjustment Description Shifts offsets the print pressure home po...

Page 391: ...creen 694 1st Print Ejection Speed Adjustment for proof print printing 695 Paper Ejection Speed 1 Adjustment for printing speed No 1 696 Paper Ejection Speed 2 Adjustment for printing speed No 2 697 P...

Page 392: ...sensitivity of the AF read sensor 755 AF ABC Operation Start Shading compensation Moves to AF ABC position lamp ON at AF ABC position Stop Lamp goes OFF returns to home position 756 Digitizer Resetti...

Page 393: ...F Horizontal Scan Position Adjustment Description Range 30 to 30 3 0 mm to 3 0 mm is to left Unit 5 0 5 mm Default 0 0 mm 783 AF Scan Start Position Adjustment Description Range 60 to 60 6 0 mm to 6 0...

Page 394: ...elected from the menu screen Link mode machine Data settings Note A change in the interpolation method does not alw ays improve the image quality Depending on the type of original the image quality ma...

Page 395: ...is function carefully For linked printer output in the photo mode and dot mode of the link mode machine resolution conversion is based on normal interpolation but random interpolation can produce bett...

Page 396: ...Version Displays the loader version of SH PCB 1302 Mechanical Controller Loader Version Displays the loader version of H8 PCB No Model 1203 Description Range 39 to 217 Unit 1 Default 128 1204 Descript...

Page 397: ...d to the scanner Gain adjustment NOTE Data settings No 1 through No 3 for Old type scanner unit 021 97500 xxx are given on previous page Data settings Enter the factory setting indicated on the sticke...

Page 398: ...1 Black 12 Color 13 Black 14 Color A4 Legal Letter B4 Light White Dark Light 0 1 2 3 4 5 6 7 8 9 Black 10 11 12 13 14 15 16 17 18 19 Dark 20 21 22 23 24 Reference Information Print Drum Code Settings...

Page 399: ...TEST MODE 18 32 Memo...

Page 400: ...eries 19 2 2 ROM Replacement RN20 21 Series 19 2 3 Battery Replacement 19 2 4 Replacement of the SH PCB RN25 Series 19 2 5 Main PCB Replacement RN20 21 Series 19 4 6 Mechanical Control MCTL PCB Replac...

Page 401: ...h time the download card is inserted or removed 2 ROM Replacement RN20 21 Series Switch off the power remove the rear cover and then replace the ROM on the main PCB When replacing the ROM it is not ne...

Page 402: ...justment Selection and set 1 for a model capable of feeding A3 size paper and 0 for other models not compatible with A3 size paper 10 Execute Test Mode No 450 Size VR Adjustment 105 mm and Test Mode N...

Page 403: ...er 18 Test Mode 8 Run Test Mode No 557 Inking Action 9 Execute Test Mode No 491 Paper Width Potentiometer Compensation Selection and set 1 for a model capable of feeding A3 size paper or 0 for other m...

Page 404: ...tly 8 Print Position Adjustment Check and adjust the mechanical sections first It is important that the mechanical sections such as the main unit drive section paper feed section and print drum have b...

Page 405: ...MISCELLANEOUS PRECAUTIONS 19 6 Memo...

Page 406: ...ection 20 4 4 Master Making Section 20 5 5 Drive Section 20 6 6 Paper ejection section 20 7 7 Pulse Motor Section 20 8 8 Scanner Section 20 9 9 Panel Section 20 10 10 SH Option 20 11 11 RIPM Option 20...

Page 407: ...aper feed master removal section Paper ejection section PM section Mechanical controller options Drive section Power supply Scanner section Panel section Model No 030 50502 Option Master making sectio...

Page 408: ...d DIII China Power supply cord DIII USA Power supply cord DIII Europe Blue Black Black Black Black Black Black Black Black Black Black Black Black Black Black Black Black Orange Red Red Red Red Red Re...

Page 409: ...nt 80 mA Compression motor Master removal motor Starting current 1800 mA Rated current 550 mA Master disposal box set safety switch Paper feed unit internal wire harness Paper size potentiometer Volta...

Page 410: ...n sensor TPH pressure sensor Thermal pressure motor Thermal pressure motor Master standby relay wire harness Master loading unit Master detection sensor Master TPH pressure sensor Thermal pressure mot...

Page 411: ...eed master removal section MF drive wire harness Print drum locking solenoid Print counter Master counter Lower limit sensor Card upper limit Normal paper upper limit Lower limit switch Paper sensor P...

Page 412: ...ress solenoid Press solenoid Purple Purple Purple Purple Purple Purple Purple Stripper unit Separation fan Separation fan Paper receiving sensor M wing motor wire harness Wing control Suction unit Win...

Page 413: ...Purple Purple Purple Purple Purple Purple Purple Purple Purple Purple Bule Purple Purple Purple Purple Purple Purple Purple Purple Purple Purple Purple Brown Print positioning motor Paper ejection se...

Page 414: ...ss Blue Scanner motor wire harness Original loading wire harness C Original loading wire harness Original detection sensor HP sensor Scanner sensor wire harness FB pulse motor Relay PCB Original detec...

Page 415: ...ELECTRICAL DIAGRAMS RN25 Series 20 10 9 Panel Section MSH panel relay wire harness Power supply section Touch panel Inverter E 05161 CN2 Elevam Backlight Backlight adjustment connector Panel unit...

Page 416: ...ler relay harness Print Aux I O 5 Aux I O 4 Aux I O 3 Aux I O 2 Aux I O 1 Stop Jam detection Main FG Paper receiving sensor Paper sensor Position R Blue Blue ROSE optional wire harness TM relay wire h...

Page 417: ...making section CC relay wire harness CC connection detection GND for CC connection detection Master count Print count Key card counter wire harness Card counter main unit Master count Print count M di...

Page 418: ...e Blue Read pulse motor Reflection type sensor Read sensor paper present L U shaped sensor U shaped sensor U shaped sensor Original detection sensor paper present L Registration sensor paper present H...

Page 419: ...Print drum internal wire harness Brown Red Orange Yellow Green Green Gray Purple Blue Terminal for M4 Brown Red Orange Yellow Green Blue Purple Gray Purple Purple Purple Purple Purple Blue Blue Blue R...

Page 420: ...7 12345678901234567 12345678901234567 12345678901234567 12345678901234567 12345678901234567 12345678901234567 12345678901234567 12345678901234567 12345678901234567 12345678901234567 12345678901234567...

Page 421: ...e processing Drive PCB MDRV PCB Operation of various parts Panel Control PCB MPNL CTL PCB Panel and display control Panel Key PCB MPNL KEY PCB Key input device Drum Control PCB DRM PCB BK DRM PCB CL P...

Page 422: ...motor Ink motor Print drum locking solenoid Copy counter Master counter F3 125 V 250 V Suction motor 3 15 A 3 15 A Press solenoid Print positioning pulse motor Wing motor Loading motor Pressure rolle...

Page 423: ...ELECTRICAL DIAGRAMS RN25 Series 20 18 Memo...

Page 424: ...2 2 Power supply section 21 3 3 Panel Section 21 4 4 Drive Section 21 5 5 Master Removal Section 21 6 6 Paper Feed Section 21 7 7 Print Drum Section 21 8 8 Paper Ejection Section 21 9 9 Master Making...

Page 425: ...Series 21 2 1 Connections 1 Block Chart Print drum section Master removal section Scanner section Paper feed drive right section Paper ejection clamp drive left section MAIN CN PCB overseas Main PCB O...

Page 426: ...ry wire harness System power supply wire harness Ground wire Mounting frame Ground wire Ground wire Master loading unit Master loading unit TPH power supply wire harness Main unit frame Japan 100 V Ch...

Page 427: ...Support US RISO COM ELECTRICAL DIAGRAMS RN20 21 Series 21 4 3 Panel Section Power supply section CN 103 LCD contrast adjustment connector Panel communication wire harness Sharp Detailed diagram Board...

Page 428: ...withdrawal sensor Counter Counter For the paper feed upper limit switch MCR 24 pin AS Sensor wire harness Master removal section Paper ejection clamp drive left section Master making paper ejection wi...

Page 429: ...d sensor U shaped sensor Reflection sensor Reflection sensor Compression sensor Master disposal box full sensor Master sensor Master jam sensor Compression motor Starting current 500 mA Rated current...

Page 430: ...Orange Yellow Green Blue Purple Gray White Paper size potentiometer Voltage decreases when turned clockwise CRV16 1K Copal Reflection sensor Reflection sensor Paper size sensor Paper present at specif...

Page 431: ...drum internal wire harness Terminal for M4 Brown Red Orange Yellow Green Green Purple Blue Gray Green Ink cartridge detection switch Brown Red Orange Yellow Green Gray Purple Purple Purple Purple Pur...

Page 432: ...or Master making paper ejection wire harness Suction unit Transfer encoder Paper ejection transfer motor Suction wire harness Stripper unit Suction fan Separation fan Separation fan Stripper unit wire...

Page 433: ...le Purple Purple Purple Purple Purple Purple Purple Purple Purple Purple Purple Purple Purple Purple Purple Purple Master stocker wire harness Master pressure set sensor Master end sensor Master stock...

Page 434: ...connected to AF CCD PCB Inverter Lamp Detailed diagram Original loading sensor HP sensor TLP1241 When light is blocked High output U shaped sensor Relay PCB Reflection sensor Scanner unit 300C Origin...

Page 435: ...PCB Connection signal Detailed diagram Detailed diagram RINC2 main signal wire harness RINC2 main imager wire harness Scanner section Connection check CC relay wire harness Keycard counter wire harne...

Page 436: ...ices Support US RISO COM ELECTRICAL DIAGRAMS RN20 21 Series 21 13 2 PCB Layout Front view Rear view SUB SW PCB PNL CTL PCB MAIN SW PCB Ink Sensor PCB DRUM PCB Drive PCB Power supply unit Relay PCB AF...

Page 437: ...AF AF control Panel Control PCB PNL CTL PCB Panel and display control Panel Switch PCB MAIN SW PCB Key input device Sub Switch PCB SUB SW PCB Key input device Print Drum PCB DRM PCB BK DRM PCB CL Prin...

Page 438: ...ounter Press solenoid Print positioning pulse motor Pressure roller motor Ink motor F3 125 V 250 V FB pulse motor 3 15 A 3 15 A AF transfer motor Write pulse motor Thermal pressure motor Paper feed cl...

Page 439: ...RISO Inc Technical Services Support US RISO COM ELECTRICAL DIAGRAMS RN20 21 Series 21 16 Memo...

Page 440: ...1 Motors 22 2 2 Fans Solenoids Electromagnetic Clutch 22 4 3 Photo Sensors 22 6 4 Other Sensors Switches and Potentiometers 22 8 5 1 Electrical Components of AF Optional RN25 Series 22 9 5 2 Electrica...

Page 441: ...ELECTRICAL COMPONENTS 22 2 O A B C D E F G H I J K L M N 2201 2202 1 Motors...

Page 442: ...thermal head in the vertical directions 230 231 G Cutter motor Operates the cutter 237 H Write pulse motor Rotates the platen roller 232 233 I Pressure control motor Rotates the print pressure gear as...

Page 443: ...ELECTRICAL COMPONENTS 22 4 A B C D E 2203 2204 2 Fans Solenoids Electromagnetic Clutch...

Page 444: ...ps remove paper from the print drum 432 B Suction fan Helps adhere paper to the transfer belts 431 C Print drum locking solenoid Locks or unlocks the print drum to or from the main unit D Press soleno...

Page 445: ...ELECTRICAL COMPONENTS 22 6 a A B C D E F G H I J K L M N O P Q R S Y X W V U T Z b 2205 2206 3 Photo Sensors...

Page 446: ...and master cutting 200 N Master detection sensor Reflection Checks the master set position 202 O Master end sensor Interrupt Checks the master roll end 201 P Print pressure control sensor Interrupt C...

Page 447: ...ch Lowers the paper feed tray manually 409 F Paper width potentiometer Checks the width of the paper on the paper feed tray G Paper feed tray descent safety switch Forcibly turns OFF the elevator moto...

Page 448: ...703 B AF registration sensor Checks the original transfer 700 C AF read sensor Checks the original transfer 701 D AF original ejection sensor Checks the original ejection 702 E AF cover set sensor Che...

Page 449: ...r roller 132 133 B AF original detection sensor Checks the presence of the originials on the AF unit 113 C AF registration sensor Checks the original transfer 110 D AF read sensor Checks the original...

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