Service Manual: (A571), Roll Feeder Type 740
Contents
1. Name Function Index No Motors Paper Feed Drives all mechanical components except the cutter unit 43 DC Stepper Motor Cutter Drives the cutter DC Reversible Motor 39 Switches Door Indicates Door Open on the operation panel and 38 disables the key operation Left Cutter Detects whether or not the cutter is at the left home 40 position Right Cutter Detects whether or not the cutter is at the right home 33 position Sensors Paper End Detects when the roll paper runs out 35 Leading Edge Misfeed detector Also detects the leading edge of the 42 paper to start the paper length pulse count Humidity Detects humidity and turns on the RF antihumidity 34 heaters while copying is not being done if the humidity Printed Circuit Board RF Control Controls all roll cutter unit functions in accordance with 37 copier CPU Others Upper RF Removes humidity from the roll paper 41 Antihumidity Heater Lower RF Removes humidity from the roll paper 36 Antihumidity Heater oo coms E ll c 00 a MECHANICAL OPERATION 31 October 1994 4 MECHANICAL OPERATION 4 1 BASIC OPERATION D B The paper feed rollers A which are turned by the paper feed motor feed paper from the paper roll B through the cutter unit C to the paper leading edge sensor D accord2. o Le ox Connector REPLACEMENT AND ADJUSTMENT 31 October 1994 7 5 CUT LENGTH ADJUSTMENT The cut length adjustment should be done when the roll feeder is installed to correct cutting errors The cut error correction data is determined in the factory without the copier installed The cut length varies depending on the copier on which it is installed and or paper type used If required adjust the cut length as follows NOTE The cut length should be measured 10 minutes or later after copying because the fusing unit dries the paper and reduces its length temporarily 7 5 1 Preset Cut Adjustment standards 3 mm for length shorter than 420 mm 5 mm for 420 to 1189 mm NOTE There are three settings of the cut length depending on the temperature mode They are set in the factory to match a standard paper type Normal SP 42 45 High SP 43 46 Low SP 44 47 Make 5 copy samples of AO lengthwise 1189 and A3 sideways 297 in the preset cut mode N Measure the difference of the length between the each copy sample and preset cut length 1189 and 297 Then calculate the average difference oo Input the average value using SP modes 42 to 47 so that the cut length is within the adjustment standards Example 1 Current SP data 42 0 Copy sample length 297 4 Set SP mode 42 4 0 2 Current SP data 42 0 Copy sample length 297 4 Set SP mode 42 4 0 4 Make AO lengthw
3. table A714 is required os im 0 o Le ox Connector INSTALLATION PROCEDURE 31 October 1994 1 Lower the feet A so that the table does not move while the roll feeder is being installed on the table and the copier NOTE Do not place the roll feeder unit B onto the floor roughly to prevent the left and right covers from being damaged 2 Remove the shipping tapes C and shipping cushions D 3 Remove the left and right covers E and F 3 screws each 4 Remove the front cover G 2 screws and lower the front cover arms H to the down position 10 31 October 1994 INSTALLATION PROCEDURE 5 Open the copier paper path section and remove the copier left lower cover A 2 screws lower right front cover B 2 screws lower right middle cover C toner collection bottle D and rear cover E 2 screws os im 0 o Le co Connector 6 Remove the small caps F from the copier rear cover using cutting pliers 7 Remove the table rear cover G 4 screws 11 INSTALLATION PROCEDURE 31 October 1994 C NOTE Take care not to drop the manual feed table when removing the bracket A 8 Remove the lower front cover B 2 screws reinforcement plate C 1 screw bracket A 4 screws which is changed by the harness and the manual feed table D 12 31 October 1994 INSTALLATION PROCE
4. to drop and damage the lower front cover B 1 Remove the left and right covers C and D 3 screws each NOTE When reattaching the left and or right covers unlock and lift the cutter unit for easier assembly 16 31 October 1994 REPLACEMENT AND ADJUSTMENT 7 2 CUTTER UNIT REMOVAL 1 Remove the roll feeder left and right covers 2 Remove the 4 screws A of the cutter unit 3 Take out the cutter unit B 1 connector C NOTE When reinstalling the cutter unit attach the cutter unit cover D with the cutter unit 8 oo coms o Le O oQ am REPLACEMENT AND ADJUSTMENT 31 October 1994 7 3 PAPER FEED ROLLER REPLACEMENT H G E F 1 Remove the cutter unit 2 Unlock and lift the paper feed roller unit A using the release lever B 3 Remove the release lock lever B 2 screws 4 Remove the feed roller guide plate C 6 screws 5 Replace the paper feed roller D 2 allen screws E 1 gear F 1 snap ring G 2 bushings H and 1 retaining ring I 18 31 October 1994 REPLACEMENT AND ADJUSTMENT 7 4 PAPER FEED MOTOR TIMING BELT TENSION ADJUSTMENT If the timing belt tension for the paper feed motor is not correct the paper cut length varies for each copy paper Readjust the timing belt tension for the paper feed if this occurs 1 Remove the small cap A 2 screws 2 Loosen the screw B and re tighten it 19 o im 0
5. DURE 9 Mount the roll feeder unit on the copier hook the mounting arms A on both sides into the mounting rail B NOTE Lift the unit by holding the plate C just under the size marks 10 Install the angle bracket D and spacer E 4 screws 11 Install the small cap F 2 screws 8 oo coms o Le 00 a 13 INSTALLATION PROCEDURE 31 October 1994 NOTE To ensure grounding tighten the screws for the ground wire until the spring washers A are flattened 12 Secure the grounding wire B 1 screw with spring washer to the inside of the table 13 Run the roll feeder harness C and roll feeder heater harness D through the holes in the table rear cover right E and left F 14 Connect the roll feeder harness to the copier main board 2 connectors G and 1 grounding wire H 1 screw with spring washer 15 Connect the roll feeder heater harness connector I to the copier ac drive board connector 16 Install the harness covers J 1 screw each 17 Reattach all the covers and manual feed table excluding the roll feeder right cover 14 31 October 1994 INSTALLATION PROCEDURE o Set lea Modes p gt Lead Margin oy C Original Stand by Line a Se A Paper Select B gt Copy Counter Hvar B gt Paper Length Preset Cut B gt Vellum Lighter Copy Prog
6. ROLL FEEDER Machine Code A571 31 October 1994 SPECIFICATIONS 1 SPECIFICATIONS Roll Paper Size Cut Size Cutting Time Paper Transport Velocity Repeat Quantity Control Power Source Power Consumption Dimensions W x D x H Weight Width 210 mm to 914 mm 81 2 to 36 Length 150 meters Diameter Less than 6170 mm Preset Cut 1189 mm 841 mm 594 mm 420 mm 297 mm 48 36 24 18 12 46 34 22 17 11 Up to 10 extra preset cut length can be specified by SP23 32 Selected Length Cut 245 mm to 2000 mm 1 mm per step 9 6 to 80 0 1 per step Within 0 80 second 50 mm s 1 to 99 Microprocessor 24 volts and 5 volts from the copier Maximum 110 W 1 080 mm x 475 mm x 295 mm 42 71 x 18 70 x 11 61 29 kg 63 8 Ib os im 0 o Le ox im Q fo Oo MECHANICAL COMPONENT AND DRIVE LAYOUT 31 October 1994 2 MECHANICAL COMPONENT AND DRIVE LAYOUT 8 5 6 5 7 1 Paper Feed Motor 5 Paper Feed Rollers 2 Idle Pulley 6 Paper Roll Spool 3 Timing Belt 7 Paper Roll 4 Cutter Motor 8 Cutter Unit 31 October 1994 ELECTRICAL COMPONENT DESCRIPTIONS 3 ELECTRICAL COMPONENT DESCRIPTIONS The index numbers refer to the electrical component layout on the reverse side of the Point to Point Water proof paper
7. de A which is pulled past a fixed blade by a drive wire The rotary cutting blade allows the cutter unit to cut paper in both directions There are home position switches B at both ends of the cutter unit The cutter motor turns off stopping the cutting action when the rotary cutting blade knob plate C turns off one of these switches o im 0 o Le ox Connector SERVICE TABLES 5 SERVICE TABLES 5 1 TEST POINTS Function TP No GND TP903 VA 24 V TP901 Vc 5 V TP902 5 2 BLOWN FUSE CONDITION Component Unit Symptom F901 250V 1 0A RF Main board The AC line for the R F antihumidity heaters is cut The heaters are not turned on 31 October 1994 31 October 1994 INSTALLATION PROCEDURE 6 INSTALLATION PROCEDURE Roll Feeder A571 CAUTION Unplug the copier power cord before starting the following procedure Check the accessories and their quantities according to the following list Harness GOV GN sorana Wate a ne Macinlevens ean e pate 2 pcs Angle BLACKED saspringt 1 pc Spacer a head ae acelin ee E se eee 1 pc VAAN A sy aes asa te tetas a seats ae tage eh ocr eet eke ae ears 1 pc Screws M4X8 ice cited sata Sad aaponetc ceria nsnarce tulunibcerebnict bedaeedsecetncnbatt 8 pcs Screws with Spring Washer M4X8 cccceceeeeeeeeeeeeeeeeeneeeeeeee 2 pcs NOTE When the Roll Feeder is installed on the copier the
8. ing to the signal from the copier When the paper feed motor starts the copier CPU starts measuring the length of the paper The paper length is measured by counting the number of steps as the paper feed motor stepper motor turns 31 October 1994 MECHANICAL OPERATION C After the leading edge of the paper reaches the exit rollers A the paper is directed to the copier registration roller B The registration roller stops rotating after the registration sensor C detects the leading edge of the copy paper The copy paper is fed to the registration roller and stops to wait for the original At the appropriate timing after the original registration sensor is activated by the original the registration roller and roll paper feed motor start to rotate The copy paper starts to be fed again Just before the cut length of copy paper is fed the speed of the roll paper feed motor is doubled A paper buckle forms at the trailing edge of the copy paper When the paper reaches the proper length paper feed motor stops and the cutter unit cuts the paper During the time that paper feed motor has stopped the registration roller continues to feed the copy paper forward The paper is cut during the time it takes for the paper buckle to be pulled straight This allows for a neat cut When the selected cut length is between 245 mm and 309 mm the roll cutter unit cuts the paper after the first rotati
9. ise and A3 sideways copies using preset cut mode and check their length 5 Repeat steps 2 to 4 if necessary 20 31 October 1994 REPLACEMENT AND ADJUSTMENT 7 6 ROLL FEED PAPER SKEW ADJUSTMENT B A D _ Mark a line A on the exposure glass B 2 Make 594 x 1189 mm copies from the roll feeder unit NOTE 594 mm wide paper is easier to adjust than 841 mm wide paper Measure the lengths C and D Loosen the 2 screws E which determine the paper spool height If C gt D lower the right side of the paper spool If C lt D do the opposite Make another copy Check the lengths C and D NO O amp w Repeat steps 4 to 6 if necessary NOTE Ifthe 10 or more copies are made continuously the nip band width of the fusing unit may change For correct adjustment do this procedure at least 10 minutes after a continuous copy run of 10 or more 21 os im 0 o Le ox im 2 fa Oo
10. on of the roll paper feed roller D as the paper reaches the selected length before the registration roller starts to rotate again After the registration roller stops rotating the roll paper feed motor continues to rotate and a paper buckle forms at the trailing edge of the paper When the selected cut length is between 309 mm and 410 mm the roll cutter unit cuts the paper after the second rotation of the roll paper feed roller The paper buckle forms after the first rotation of the roll paper feed motor because the paper feed roller is still rotating after the registration roller has stopped The registration roller brake ensures that the very stiff types of paper will not rotate the registration rollers when the paper buckles while it is stopped at these rollers os im 0 o Le 2 am im 2 9 8 MECHANICAL OPERATION 31 October 1994 4 2 CUTTER UNIT OPENING AND CLOSING MECHANISM A The gear A from the paper feed motor disengages from the cutter unit gears B when the roll cutter unit is unlocked from the lower position and lifted up At this time the cutter unit is locked at the upper position by the lock lever C and the wheel D on the right side can be rotated manually to position the leading edge of the roll paper 31 October 1994 MECHANICAL OPERATION 4 3 CUTTER OPERATION The cutter unit uses a sliding rotary cutting bla
11. ram 5B 5 5 THT atta Fim OEE Function Select RF Select Copy Media Lighter Darker Clear Stop ajo fe Emergency Stop s E F D Length 300 PRG 1100 PRG Temperature N No No NORMAL XX 42 XX 45 HIGH VELLUM XX 43 XX 46 LOW FILM XX 44 XX 47 18 Plug in the power supply cord and turn on the main switch 19 Press the following keys on the operation panel Clear Modes key A key B key C Clear Stop key D 20 Press the Clear Stop key again and hold it down for longer than 3 seconds The roll paper end and call service indicators will blink SP mode 21 Select 40 using the and keys Enter 1 by pressing the following keys Function Select key E key RF Select key F 22 Input values into SP modes 42 to 47 in accordance with the decal that is attached to stuck on the right side plate oo coms o Le 00 a 23 Press the Clear Modes key 3 times to leave the SP mode 24 Reattach the roll feeder right cover 25 Check the roll feeder operation 15 REPLACEMENT AND ADJUSTMENT 31 October 1994 7 REPLACEMENT AND ADJUSTMENT 7 1 EXTERIOR COVER REMOVAL 7 1 1 Front Cover Removal 1 Remove the front cover A 2 screws NOTE If the screw holes for the front cover become worn by the screws extra holes are provided next to the original screw holes 7 1 2 Left and Right Cover NOTE Be careful not
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