Riso 200ep manual

Refer to chapter 3 2 Remove the cap screw M3x 1pc and detach the separator lever assembly. Align the position-B alignment hole on the air pump gear assembly aligns with the position-B recessed marking on the air pump base.

Removing the Piston 6 Remove the E-ring, detach the arm shaft, and remove the piston. Caution: 1 Be careful not to misplace the air release valve and the spring. Confirm that neither paper jamming on the drum nor black thin line caused by the separator touching and scratching the master on the print drum appears on the prints.

Note that 5mm white margin is given on top of the prints to check the paper jamming sticking on the drum. The gap between the tip of the separator and the surface of the print drum should be adjusted to 1mm plus or minus 0. Note that one graduation scale changes the gap by 1mm. Tighten the two screws after the adjustment. Symptoms 1 If the tip of the separator touches the print drum surface, it will scratch the surface of the master, causing a black line in the center of the prints.

Print Drum Set Mechanism Print Drum Rotation Mechanism Inking Mechanism Removing the Screen Assembly Removing the Master Clamp Base Assembly Removing the Drum Body Removing the Ink Pump Assembly Removing the Ink Bottle Guide Assembly Removing the Drum Joint Removing the Flange-R Removing the Flange-F Removing the Squeegee Roller Squeegee Gap Adjustment Squeegee Pressure Balance Adjustment Master on the Drum Check Mechanism Before Printing The machine checks for the presence of the master on the print drum at the start of a print job..

With a push of the Start key to begin the printing operation, the print drum starts to rotate and at drum angle 40 degrees from the position-A, the master sensor checks if a master is wrapped on the print drum or not. If a master is found on the print drum, the printing operation takes place, but if a master is not detected, the machine stops. Once the master is detected on the print drum, the information is memorized on the machine, and the master sensor no longer check for the master on the print drum from the next printing job until a new master is made, print drum is pulled out of the machine, or the power to the machine is turned OFF.

Print Drum Set Mechanism The removal and insertion of the print drum is done at print drum position-B stop position. Whether the print drum is set in the machine or not is checked by the drawer connector of the print drum, print drum safety SW and print drum lock sensor. When the print drum safety SW is OFF, the main motor, clamp motor, master removal vertical transport motor and master compression motor will not go ON.

Print Drum Rotation Mechanism When the main motor rotates, the drive is transferred in following sequence. The main motor drive is transferred to the main shaft assembly via main belt, and via the drive joint the drum joint receives the drive and rotates the flange-R of the print drum. The flange gear on flange-R drives the squeegee idle gear and the drive is transferred to the squeegee drive gear to rotate the squeegee roller.

As the squeegee roller rotates, the squeegee roller attached on the squeegee roller shaft rotates and transfers the drive to the driven shaft gear and rotates the driven shaft. The squeegee drive gear contains a one-way clutch to prevent the squeegee roller from rotating in the reverse direction if by accidentally the print drum is rotated in the opposite direction by hand.

The doctor roller is fixed in position and does not rotate. Inking Mechanism The ink is pumped into the print drum from the ink bottle when the ink sensor in the print drum no longer detects the ink in the drum while the drum is rotating with the main motor ON. The pumped ink is distributed on to the squeegee roller from the holes on the ink distributor. The ink distributed on the squeegee roller makes a long ink bead around the driven roller located between the squeegee roller and doctor roller.

Once the bead of ink touches the ink sensor the ink motor deactivates to stop the inking action. There is a small gap made between the doctor roller and squeegee roller. From this gap the ink from the bead of ink transfers onto the inner surface of the print drum via the squeegee roller.

The overflow sensor is located in the print drum to stop the machine to prevent ink overflow in the case the bead of ink for some reasons becomes too large. Removing the print drum lock sensor 3 Remove a screw M3x6: 1pc and detach the print drum lock sensor from the drum lock unit together with the sensor bracket. Removing the print drum lock solenoid 3 Remove screws M3x6: 2pcs and detach the print drum lock solenoid.

Removing the print drum safety switch 3 Unhook the torsion spring, remove the E-ring, and detach the drum safety switch together with the switch bracket. Removing the Screen Assembly 1 Make a confidential master on the print drum and pull the print drum out of the machine. Caution: Do not fold or bend the screen assembly during the removal or installation.

Refer to the next page for the precautions in reassembly. Then tentatively attach the screws on the tail hanger, very lightly. This is to tension the screen assembly tightly and evenly around the print drum. Removing the Master Clamp Base Assembly 1 Make a confidential master on the print drum and pull out the drum from the machine.

Removing the Drum Body 1 Make a confidential master on the print drum and pull out the drum from the machine. The tape will be reused in assembly.

The F imprint should face the flange-F, and R imprint should face the flange-R. With the drum body in this direction, hook the potbelly shaped holes of the drum body onto the two loosened existing screws on the drum flanges F and R. Removing the Ink Pump Assembly 1 Make a confidential master on the print drum and pull out the drum from the machine. Then remove screws M4x8: 2pcs and detach the ink pump assembly. Removing the Ink Bottle Guide Assembly 1 Make a confidential master on the print drum and pull out the drum from the machine.

Then disconnect the ink bottle set switch connector and detach the two reusable bands from the print drum frame. Antenna PCB Antenna connector pin.

Ink bottle lock assembly. Removing the Antenna PCB 3 Separate the ink bottle guide top from the ink bottle guide bottom by unhooking the claws. Ink bottle guide assembly. Removing the Print Drum PCB 1 Remove the print drum from the machine, and detach the drum cover from the drum by removing screws M3x6: 4pcs.

Removing the Drum Joint 1 Remove the print drum from the machine. Removing the Flange-R 1 Make a confidential master on the print drum and pull out the drum from the machine. Removing the Flange-F 1 Make a confidential master on the print drum and pull out the drum from the machine. Removing the Squeegee Roller 1 Make a confidential master on the print drum and pull out the drum from the machine.

Squeegee Gap Adjustment Checks and adjustment 1 Remove the print drum from the machine and detach following components off the print drum. Refer to the photograph below for the location. Symptoms: 1 If the squeegee gap is too wide, too much ink is transferred onto the inner surface of the print drum and may result in ink leakage from the print drum. Other problems, such as the master slipping out from the clamp plate and horizontal line images may start to rip on the master.

Check the left and right of the prints to compare the print density and confirm that the density is even between the two sides. The gap between the drum body and the squeegee roller by the feel of the fingers should be equal throughout the length of the print drum. The gap should be within the following range, and if not, make an adjustment. Drum rear frame assembly. Clamp Unit Home Positioning Mechanism Clamp Plate Opening Mechanism Drum Position-A Compensation Clamp Plate Master Clamp Mechanism Removing the Clamp Unit Removing the Clamp Motor Clamp Unit Home Positioning Mechanism The clamp unit is checked if the unit is at home position or not each time the machine power is turned ON or the all-reset key is pressed.

The unit is judged to be at home position when the clamp sensor-A is detecting the clamp opening cam the clamp opening cam is at the maximum up position and the clamp sensor-B is not detecting the actuator disc.

If the unit is not at the home position when the power is turned ON or all-reset key is pressed, the clamp motor is activated to rotate the clamp cam is rotated to bring the position-A compensation plate and clamp opening cam to the home position. Clamp sensor-A. Clamp Plate Opening Mechanism When the START key is pressed for the master-making or confidential-master making, the print drum starts to rotate and the presence of the master on the print drum is checked.

As the print drum comes back to the next position-A, the clamp plate opening action takes place. The clamp opening action is made by turning the clamp motor ON to rotate the clamp cam until the light path of the clamp sensor-B is cut by the actuator disc. At this point, the clamp opening cam is down and as the print drum rotates forward, the cam follower on the clamp plate rides on the clamp opening cam and the clamp plate opens. As the print drum rotates further, the cam follower for the master ejection plate rides on the cam and the bar pops up to eject the leading edge of the master out from under the clamp plate.

Drum Position-A Compensation The print drum rotates to remove the master and comes back to position-A and stops. Since the clamp opening cam is still down, the clamp plate opens and master ejection plate lifts up a little when the print drum stop at position-A.

As the print drum stops at position-A, the clamp motor turns ON to make position-A compensation. The clamp motor rotates to turn the clamp cam until the actuator disc escapes out from the clamp sensor-B. This movement brings the position-A compensation plate down to catch the plastic compensator pin on the print drum to hold the print drum at position-A.

Clamp Plate Master Clamp Mechanism Once the load pulse motor on the master-making area feeds a length of the master onto the print drum, the clamp motor activates to rotate the clamp cam to bring the clamp opening cam up to bring the master ejection plate down and close the clamp plate. The clamp motor rotates further to bring the position-A compensation plate up.

Both the clamp opening cam and position-A compensation plate returns to the home position. Remove screws M4x8: 3pcs and remove the clamp unit from the machine. Master Removal Mechanism Removed Master Vertical Transport Mechanism Disposed Master Compression Mechanism Removing the Master Compression Motor Removing the Master Removal Unit Removing the Master Removal Roller Bottom Removing the Master Compression Plate Removing the Pulley Shaft Removing the Master Disposal Roller Upper Removing the Round Belts Removing the Master Disposal Housing Assembly Master Removal Mechanism Master on the print drum is removed from the print drum and disposed in following sequence.

The print drum does not stop at position-A, but continues its rotation. Master loading sensor. Master on the Drum Check Mechanism Before Master Removal When creating a confidential or normal master, the print drum rotates to the first position-A and continues to rotate to second position A. Then, the print drum, after passing the second position-A checks the presence of the master on the drum with the master loading sensor at 40 degrees turn from the position-A.

If the master is found on the drum, the machine makes the master removal action with the master disposal jam sensor active. If no master is found, the master removal action is made with the master disposal jam sensor deactivated. The default position of 40 degrees from position-A to check the master on the drum can be changed by test mode No.

If the machine already knows that there is master on the drum, before going into master making operation, the master on the drum check action is skipped, and the print drum starting the rotation from the position-B goes into master removal action immediately. Removed Master Vertical Transport Mechanism At the start of the clamp plate opening action to remove the master from the drum, the master disposal motor activates to rotate the master disposal rollers to catch the leading edge of the removed master from the drum.

With the continued rotation of the print drum, the removed master is transferred into the master disposal box by the master disposal rollers. Once the master removal action has started and the print drum returns to position-A, the master disposal motor deactivates one second after the main motor stops. The timing for the master disposal motor to deactivate can be adjusted by test mode No.

Whether the master has arrived into the master disposal area or not is checked by the master disposal jam sensor at drum angles degrees and degrees during the master removal. These two drum angles can be adjusted by test modes No.

The master disposal roller speed is checked by the master disposal motor FG sensor, and the speed can be adjusted by test mode No. Also the print drum rotation speed during master removal can be adjusted using the Test Mode No. Master disposal jam sensor Pulley shaft. Disposed Master Compression Mechanism 1 Initializing movement The initialization action of the master compression plate is made at two occasion.

If the light path of the master compression plate HP sensor is blocked from the start, the initializing operation of the master compression plate is not performed. If the light path of the sensor is blocked from the start, the initializing operation of the master compression plate is not performed. The plate stops at the maximum down position for 3 seconds and then returns to the fully raised home position.

The maximum down position is pulse count by the FG sensor adjustable by test mode No. The FG sensor, located in between the series of gears between the master compression motor and compression plate, starts counting the pulses when the compression plate clears from the master compression plate HP sensor.

As the removed master in the master disposal box increases, the resistance to the compression plate increases, causing the plate to slow down during the compression movement. The compression plate ends the compressing action before it reaches the pulse count position. If the time intervals between each pulse exceeds 53 ms adjustable by test mode No. The plate then returns to the home position. As the amount of the removed master increases, the resistance against the compression plate increases during the compressing movement.

If the time interval exceeds more than 53 ms adjustable by test mode No. Master Disposal Box Safety SW The master disposal box safety switch checks whether the master disposal box is correctly set on the machine.

When the master disposal box is not set on the machine, the master disposal safety switch prevents the main motor, clamp motor, master removal vertical transport motor and master compression motor from turning ON.

In the case the master disposal box FULL indication LED lights up on the operation panel, the master disposal box needs to be removed from the machine to switch OFF the master disposal box safety switch for 5 seconds to reset and clear the LED indication. Removing the Master Compression Motor 1 Switch off the machine power and remove the front cover.

Removing the Master Removal Unit 1 Switch off the machine power, remove the master disposal box and detach the front cover. Removing the master jam sensor 2 Disconnect the sensor connector, remove a screw M3x6: 1pc , and detach the master jam sensor together with the sensor bracket. Removing the master loading sensor 2 Disconnect the connector sensor, remove a screw M3x6: 1pc by inserting a screwdriver through a hole on the master disposal housing, and detach the master loading sensor.

Removing the master disposal FG sensor 5 Disconnect the sensor connector and detach the master disposal FG sensor. Removing the Master Removal Roller Bottom 1 Switch off the machine power and detach the master removal unit. Master disposal roller bottom.

Detach the master disposal roller bottom from the assembly. Spur gear. Removing the Master Compression Plate 1 Switch off the machine power and detach the master removal unit.

Removing the Pulley Shaft 1 Switch off the machine power and detach the master removal unit. Remove the pulley shaft from the unit by pulling it out though the round belts. Removing the Master Disposal Roller Upper 1 Switch off the machine power and detach the master removal unit. Slide the shaft of the roller to the front to free the rear side of the roller off the frame of the master removal unit.

Remove the flat-washer from the shaft. Free the front side of the roller shaft from the frame of the unit and remove the flat-washer from the shaft on the front side also.

Pull the master disposal roller upper out through the round belts. Removing the Round Belts 1 Switch off the machine power and detach the master removal unit. Removing the Master Disposal Housing Assembly 1 Switch off the machine power and detach the master removal unit. Original Scanning Mechanism Flatbed Initialization Movement Stage-Glass Original Detection Mechanism FB Auto-Base-Control FB Scanning Mechanism Removing the Scanner Unit Removing the Stage Glass Removing the Scanner Lamp Removing the CCD Unit Original Scanning Mechanism The FB read pulse motor drives the front and rear wire drum by timing belts with the speed reduced by two speed reduction pulleys.

The wire drive system for the front and rear are symmetrically made. One end of the wire is secured to the front side of the scanner unit frame and from there it goes around pulley No. It then goes around the pulley fixed on the front side of the scanner unit frame and then wound on wire spool pulley located at the back of the scanner unit.

From the wire spool pulley, the wire is attached onto the lamp carriage. It then continues to go around the pulley No. The lamp carriage is mounted with one original illumination lamp, a reflector, a lamp inverter, and mirror No. The mirror carriage is provided with mirrors No. This means that when the FB read pulse motor is activated, the original can be scanned while maintaining a constant distance between the original and the lens on the CCD assembly mounted on the scanner unit.

The original on the scanner table illuminated by the lamp is reflected via mirrors No. Flatbed Initialization Movement Initialization is performed in the following situations to bring the flatbed unit to the home position. Once the lamp carriage escapes from the sensor detection, the FB read pulse motor rotates in the return direction until the sensor detects the lamp carriage again and keeps on moving until the lamp carriage moves 8mm further from the first detected position and stops.

This is called the home position, and at the home position the sensor is still detecting the carriage. If the HP sensor detects the carriage during this movement, the initialization movement explained in the above paragraph 1 takes pace. If the carriage was not detected during the 8mm reverse movement, the pulse motor rotates in the forward direction to move the carriage 8mm in the scanning direction.

Then the pulse motor rotates in the reverse direction to bring the carriage back until the HP sensor detects the carriage and stops after the carriage moves 8mm from the detected position home position. Then, the initialization movement explained by above paragraph 2 is made. Stage-Glass Original Detection Mechanism The FB original detection sensor checks whether an original has been placed on the stage glass.

As soon as the stage cover is closed halfway, blocking the light path to the stage-cover sensor, the FB original detection sensor checks whether there is an original on the stage glass.

If the flatbed original detection sensor is receiving light original present , the indication on the operation panel changes to Master Making and the shading-compensation and auto-base-control adjustment are performed. The lamp carriage is then moved to the scanning standby position with the scanner lamp turned on. If the Start key is pressed within 60 seconds, the scanning operation starts. If the Start key is not pressed within 60 seconds, the scanner lamp turns off and the lamp carriage returns back to the home position.

FB Auto-Base-Control When an original is set and the stage cover is closed, or when the original scanning density is set to AUTO and if the operation starts from the lamp carriage at home position, the auto-base-control, which is explained below, is conducted after the shading-compensation is performed.

With an original set on the scanner table and when the stage-cover sensor detects the stage cover closed, or when the Start key is pressed, the scanner lamp illuminates and the FB read pulse motor rotates in the scanning direction.

After the shading-compensation is performed, the lamp moves The original background is read two more times after moving the lamp 2. Therefore, the auto-base-control scanning is made 3 times in total. The FB read pulse motor then rotates in the reverse direction to bring the lamp carriage back to the standby position and starts the original scanning.

FB Scanning Mechanism When the Start key is pressed, the FB read pulse motor activates to move the lamp carriage in the scanning direction. After the top 4 mm of the original is skipped, the read signal turns ON and the original scanning operation starts.

Once the scanning is made for a specific given distance, the scanner lamp turns off to end the scanning operation. If the Book mode scanning is selected, the read signal is turned off for the length of 20mm in the center of the paper size set on the paper feed tray. The lamp carriage returns back to the home position after the scanning operation is finished.

Removing the Scanner Unit 1 Switch off the machine power and remove the following covers. This is a heavy precision component. Handle with care. Removing the Stage Glass 1 Switch off the machine power and remove the following covers. Stage Glass. Disconnect the sensor connector and detach the FB original detection sensor together with the sensor cover.

Scanner lamp. Therefore, fit the holes on the positioning brackets into the positioning pins on the scanner unit, and secure the CCD unit in place using three screws. Make a master and print. Confirm that all the e images are made on the right and left of the master on the print drum. Scanning Mechanism Removing the Image Scanner Image Scanner Position Adjustment Scanning Mechanism The FB read pulse motor drives the front and rear wire drum by timing belts with the speed reduced by two speed reduction pulleys.

The wire is wound on the wire drum located at the back of the scanner unit. One end of the wire from the wire drum is attached directly onto the image scanner carriage.

The other end of the wire goes around the pulley attached on the front frame of the scanner unit and attached onto the image scanner carriage. When the FB read pulse motor is rotated, the image scanner carriage travels under the stage glass and scans the image on the original. Once the carriage escapes from the sensor detection, the FB read pulse motor rotates in the return direction until the sensor detects the carriage again and keeps on moving until the carriage moves 8mm further from the first detected position and stops.

But if the carriage was not detected during the 8mm reverse movement, the pulse motor rotates in the forward direction to move the carriage 8mm in the scanning direction. If the flatbed original detection sensor is receiving light original present , the indication on the operation panel changes to Master Making and the shading-compensation is performed. The image scanner carriage is then moved to the scanning standby position with the image scanner lamp turned on. If the Start key is not pressed within 60 seconds, the image scanner lamp turns off and the lamp carriage returns back to the home position.

FB Scanning Mechanism When the Start key is pressed, the FB read pulse motor activates to move the image scanner carriage in the scanning direction. Once the scanning is made for a specific given distance, the image scanner lamp turns off to end the scanning operation. The image scanner carriage returns back to the home position after the scanning operation is finished. Removing the Scanner Unit 1 Switch off the power, and remove the following covers: - Stage cover - Scanner cover;paper feed -.

Install the unit on the machine and that completes the installation. If the image scanner carriage is fixed at shipping position by a large screw, that screw must be removed.

Removing the Stage Glass 1 Switch off the power, and remove the following covers: - Scanner cover;paper feed - Scanner cover;paper ejection 2 Remove one stepped screw and the three flat screws, and remove the original stopper. Removing the Image Scanner 1 Switch off the machine power and remove the stage glass. These are to be reused on the new image scanner.

Disconnect the thin flat cable from the image sensor and remove the image sensor together with the sheet spring attached. Hook the wire-tension spring and then securely tighten the four screws of the motor bracket. Image Scanner Position Adjustment For this adjustment to be effective, the paper feeding area, especially the skew of the paper needs to be preadjusted.

Also the three adjustments on the scanner unit described on the previous page, and the six adjustments on the master-making described on Chapter 14 must also be pre-adjusted.

Checks and adjustment 1 Set B4-size papers on the paper-feed tray, use test chart No. The service position is where the screws and adjusting cams are visible from the holes on the scanner unit. Rotating the cam in the clockwise direction by one click moves the image 0. Rotating the cam in the clockwise direction by one click brings the image on the left-hand-side of the paper 0. Make a master and confirm that the image on the print lines up with the original.

Repeat the adjustment if required. AF Original Set Mechanism AF Original Scanning Mechanism Removing the Original Feed Roller Assembly Removing the Pickup Roller Removing the Original Stripper Roller Removing the AF Registration Sensor After a preset interval, the AF read pulse motor activates in the clockwise direction to bring down the pickup roller and raises the original stopper gate up.

During this movement, the one-way clutch equipped between the registration roller gear and its shaft prevents the registration-roller from rotating. As the pickup roller comes down, the original stripper roller also comes down, and the both rollers rotates in the feed direction to advance the original.

The leading edge of the original then hits the actuator of the AF registration sensor and switches the sensor ON the actuator blocks the sensor and continues to advance until it is stopped by the registration roller which is still not driven. The AF registration sensor, after turning ON, activates the AF read pulse motor in the counterclockwise direction to rotate the registration roller, read roller and original-ejection-gear to advance the original further forward. The feeding the of the original ends when the original has moved a total of mm from the original stopper gate.

After the AF original setting operation is completed and if the Start key is pressed for the scanning operation, the scanner lamp turns ON. The FB read pulse motor activates immediately to move the lamp carriage to the shading compensating position, and the shading compensation is done.

At the same time, the AF read pulse motor rotates in the forward direction to bring the original The CCD reads the background color of the original. Then the FB read pulse motor moves the lamp carriage to the normal AF scanning position. The AF read pulse motor starts to feed the original through the AF unit and the read-signal goes ON to start the scanning. As the tail end of the original goes out of the original read sensor the read-signal goes OFF to end the scanning. If the operator has chosen a print paper size smaller than the original, the read-signal turns OFF after scanning for that size.

After the read-signal turns OFF, the AF read pulse motor rotates at a fast speed to eject the original out. After a given period of time from the point in which the AF original ejection sensor detects the original gone out, the AF read pulse motor stops to end the AF original scanning movement. The auto-base control function is inactive in the Photo, Duo and Dot-screening modes. Then the FB read pulse motor rotates the other way and brings the lamp carriage to the AF scanning position and stops.

Detach the original feed roller assembly by lifting the orginal stopper gate out of the way. Then remove the E-ring on the right of the snap ring. Be sure to position the gear of the original stripper roller to the right as shown on the photograph below. Install the washer on the gear side of the Original stripper roller.

When joining the parallel pin onto the H-pickup arm FR right assembly, be sure to insert it into the shallower groove of the H-pick arm FR right assembly.

Removing the Original Detection Sensor 3 Disconnect the connector and release the actuator, and remove the AF Original detection sensor. Then remove the ground wire by removing a screw M3x6: 1pc.

Removing the read roller 8 Remove the clutch spring, E-ring, timing pulley and metal bushing from the front side of the read roller. Then remove the E-ring, washers, thrust spring, washer and metal bushing from the rear side of the roller. Removing the original ejection roller 8 Remove the E-ring, timing pulley and metal bushing from the front side of the original ejection roller. Then, remove the E-ring, washers, thrust spring and metal bushing from the rear side of the roller.

Confirm that none of the e images on the left and right of the original is not omitted. Master Making Unit Components Set Detection Mechanism Master Cutting Mechanism Rotary cutter : A3 machine Master Cutting Mechanism Shuttle cutter : excluding A3 machine Master Set Mechanism Master Making Movement Removing the Print Thermal Head Assembly Removing the Thermal Pressure Motor Assembly Removing the Master End Sensor receive Assembly Removing the Antenna PCB Removing the Write Pulse Motor Assembly Removing the Write Roller Removing the Load Pulse Motor Assembly Removing the Clamping Guide Roller Removing the Cutter Guide Assembly Removing the Load Roller bottom Removing the Master Making Unit Removing the Master Stocker Roller bottom Thermal Power of Thermal Print Head Master Clamp Range Adjustment Write Start Position Adjustment Master cut length adjustment Master making image Elongation and Shrinkage adjustment Master making length adjustment Master positioning sensor Load roller Master-making unit upper cover set sensor.

Set Detection Mechanism Master making unit set detection mechanism As flatbed section cannot be opened or closed, the unit has a mechanism in which the master making unit can be pulled out.

The pulling out and insertion of the master making unit are conducted at print drum position-B stop position. The master making U safety switch and the master making U lock sensor confirm that the master making unit is set. When the master making U safety switch turns OFF, the main motor, clamp motor, master removal compression motor and master removal transport motor are electrically designed not to activate. The master making unit upper cover detection mechanism The master making unit upper cover set sensor confirms that the master making unit upper cover is set, and the master setting operation is performed once the cover is set.

Master end detection The end of the master roller is confirmed by the master end sensor detecting the black end mark attached on the tail end of the master material on the master roll. The master end sensor checks every 10 ms while the master is being transported, and the master roll LED on the operation panel illuminates when the end mark is detected twice in succession.

Master Cutting Mechanism Rotary cutter : A3 machine The master is cut by the rotary cutter of the cutter unit, which is rotated by the cutter motor. The cutter motor rotates in one direction. The cutter HP SW confirms the home position of the rotary cutter. The cutter is at the home position when the switch is not pressed. As the cutter motor activates, the gears turn to rotate the rotary blade. The cam on the metal gear pushes against the actuator of the cutter HP SW and after one rotation of the cam the switch actuator arrives back to the flat-cut on the cam.

The switch actuator is no longer pressed by the cam and the cutter motor stops. Master Cutting Mechanism Shuttle cutter : excluding A3 machine The master is cut by the round disc shuttle cutter blade sliding from the home position at one end to the cutter stop position on the other end of the cutter unit. Once the disc blade cuts the master material, it returns back to the home position to end the cutting operation.

The TPH is lowered against the write roller only during the master making and master transfer operation. The up and down movement of the TPH is made by the rotation of the eccentric pressure cam rotated by the thermal pressure motor. The stop position of the TPH, whether going up or down, is detected by the thermal pressure sensor and sensor disc.

When the machine power is switched ON or when the all-reset button is pressed, the initialization movement of the machine elevates the TPH away from the write roller. Sensor disc. Master Set Mechanism When the master making unit upper cover is closed and the set sensor detects the closed cover, the master set operation, described below, takes place. Read this section before install- ing the machine.

This can result in fire or electric shock. Because digital data itself is used for making a master, the finish of prints becomes outstanding. The maximum printing areas differ among models.

Select the paper feed pressure. Load paper. Raise the Paper Stopper, and then slide it according to the length of paper. Position the Receiving Tray Paper Guides.

When using thick paper, you need not lower the corrugators. Read this section before operat- ing the machine. Operation Environment Important! Do not store consumables in the following places: — Locations that are subject to direct sunlight or bright locations that are close to windows If there is no other choice, curtain the window.

Process for printing from a paper document or book A placed original is scanned by the scanner, and a generated master is rolled around the Print Drum. After a while, sample copy is performed. When placing on the Platen Glass The power switch is located on the lower right side Open the Platen Cover and place the original of the machine. Pull and open the Receiving Tray Paper Guides, and then remove the paper.

The power switch is located on the lower right side While the machine is receiving data, the indi- of the machine. Press the key to turn on its indicator. You can select the dot screening pattern from two types.

Press the key to select the type of a dot screening. Enlarging and Reducing by Standard Ratios [Standard] Select the standard ratios when enlarging or reducing standard-sized originals to another standard size or when Press the key to select the Zoom mode. This is called 2-Up printing. Insufficient margins result in inappropriate page layout.

Enter the number of copies to be printed, using the Print Quantity keys. The master-mak- ing and printing processes are automatically executed in a sequence. Press the key to turn on its indica- tor. Because of ink consumption save processing, the print density will be lower than usual. Press the key. Proof copy does not affect the number shown on the Print Quantity Display.

Each time you press the key, the print density is changed by one step. The set quantity entry mode is started. The print quantity entry mode is started. Enter the number of set using the Note: Print Quantity keys. Good Luck. Thanks Thanks, that's exactly what the problem was.

Now I am getting D wrong Ink cartridge it is a genuine Riso cartridge and I have tried a new one in it also genuine and the same error comes up. All this started after a paper feed jam which I cleared, the paper had only been taken half way in and I pulled it out again then this error started, any clues?

I am unable to remove the drum as it seems to be locked, if I could remove this I could see if there was any other paper jammed. Any help apreciated. Make sure drum is in home position two arrows on drum frame and shell line up. Put a screw driver in the small hole under the drum and press the button in there to release the solenoid.

I have had a couple bad batches of genuine Riso ink. Get one from a different lot number and test. Also had some RF tags fail. Don't know if it had a hard shipment or customer dropped.

Also had one customer knock the receiver sensor bracket off its holder inside the drum. Have to tear down and reseat. Latest machine firmware is V 2. Thanks for having me.