Z+ drum cleaning: Difference between revisions

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''Please note: I am not a certified Riso tech. This method has worked for me through trial and error and reading through the technical manuals. Find a clean work space and lay down some kraft/butcher paper because it will be messy!''
''Please note: I am not a certified Riso tech. This method has worked for me through trial and error and reading through the technical manuals. Find a clean work space and lay down some kraft/butcher paper because it will be messy!''
 
[[File:Drum Cleaning Tools.jpg|center|frameless|490x490px]]
[[File:tools.JPG|thumb|480px]]
[[File:Screen Tape.jpg|center|frameless|325x325px]]
[[File:IMG_3620.JPG|thumb|480px]]


== Main items you will need ==
== Main items you will need ==
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=== Step 1: Removing the screen assembly ===
=== Step 1: Removing the screen assembly ===
[[File:step-1.jpg|thumb|480px]]
[[File:step-1.jpg|480px|center|frameless]]


Remove the two end hanger screws (#1 in photo, the second screw is on the opposite side of the drum). Remove the four top hanger screws (#2 in photo, the third and fourth screws are on the opposite side of the drum).
Remove the two end hanger screws (#1 in photo, the second screw is on the opposite side of the drum). Remove the four top hanger screws (#2 in photo, the third and fourth screws are on the opposite side of the drum).


[[File:step-1-cont_0.JPG|thumb|480px]]
[[File:step-1-cont_0.JPG|thumb|480px|center]]


With one hand on the top of the screen assembly, rotate drum and lift the screen off of the drum body.
With one hand on the top of the screen assembly, rotate drum and lift the screen off of the drum body.
Line 39: Line 38:


=== Step 2: Removing the clamp plate base assembly ===
=== Step 2: Removing the clamp plate base assembly ===
[[File:step-2.JPG|thumb|480px]]
[[File:step-2.JPG|thumb|480px|center]]


Remove the four screws on the clamp plate base assembly.
Remove the four screws on the clamp plate base assembly.


[[File:step-2-2.JPG|thumb|480px]]
[[File:step-2-2.JPG|thumb|480px|center]]


=== Step 3: Removing the print drum body ===
=== Step 3: Removing the print drum body ===
[[File:step-3.jpg|thumb|480px]]
[[File:step-3.jpg|thumb|480px|center]]


Loosen the two mounting screws in the keyhole-shaped holes at the front and rear side of the print drum body.
Loosen the two mounting screws in the keyhole-shaped holes at the front and rear side of the print drum body.


[[File:step-3-2.JPG|thumb|480px]]
[[File:step-3-2.JPG|thumb|480px|center]]


Remove the remaining eight mounting screws on the print drum body.
Remove the remaining eight mounting screws on the print drum body.


[[File:step-3-3.JPG|thumb|480px]]
[[File:step-3-3.JPG|thumb|480px|center]]


With one hand holding the print drum body in place, remove the tape from the drum. Carefully pull the print drum body up. Remove the remaining two screws holding it in place. Set the print drum body aside on a sheet of parchment paper.
With one hand holding the print drum body in place, remove the tape from the drum. Carefully pull the print drum body up. Remove the remaining two screws holding it in place. Set the print drum body aside on a sheet of parchment paper.
Line 61: Line 60:
Remove the front and rear scraper plates (one screw each)
Remove the front and rear scraper plates (one screw each)


[[File:step-4.JPG|thumb|480px]]
[[File:step-4.JPG|thumb|480px|center]]


Set off to the side.
Set off to the side.


[[File:step-4-2.JPG|thumb|480px]]
[[File:step-4-2.JPG|thumb|480px|center]]


=== Step 5: Removing the ink pump assembly ===
=== Step 5: Removing the ink pump assembly ===
Line 71: Line 70:


Connector 1:
Connector 1:
[[File:step-5.JPG|thumb|480px]]
[[File:step-5.JPG|thumb|480px|center]]


Connector 2:
Connector 2:
[[File:step-5-2.JPG|thumb|480px]]
[[File:step-5-2.JPG|thumb|480px|center]]


Remove the two mounting screws on either side
Remove the two mounting screws on either side


[[File:step-5-3.JPG|thumb|480px]]
[[File:step-5-3.JPG|thumb|480px|center]]


Set the ink pump assembly off to the side
Set the ink pump assembly off to the side


[[File:step-5-4.JPG|thumb|480px]]
[[File:step-5-4.JPG|thumb|480px|center]]


=== Step 6: Removing the ink cartridge guide assembly ===
=== Step 6: Removing the ink cartridge guide assembly ===
Remove the four mounting screws
Remove the four mounting screws


[[File:IMG_3394.JPG|thumb|480px]]
[[File:IMG_3394.JPG|thumb|480px|center]]


Disconnect the first connector:
Disconnect the first connector:
[[File:IMG_3396.JPG|thumb|480px]]
[[File:IMG_3396.JPG|thumb|480px|center]]


Unsnap the two wire guides from the drum frame and disconnect the second connector:
Unsnap the two wire guides from the drum frame and disconnect the second connector:
[[File:IMG_3402_0.JPG|thumb|480px]]
[[File:IMG_3402_0.JPG|thumb|480px|center]]


Set the unit off to the side
Set the unit off to the side
[[File:IMG_3403.JPG|thumb|480px]]
[[File:IMG_3403.JPG|thumb|480px|center]]


=== Step 7: removing the ink sensor PCB ===
=== Step 7: removing the ink sensor PCB ===
Put on your anti-static wrist band if you have one. Disconnect the connector:
Put on your anti-static wrist band if you have one. Disconnect the connector:
[[File:IMG_3407.JPG|thumb|480px]]
[[File:IMG_3407.JPG|thumb|480px|center]]


Unscrew the two mounting screws:
Unscrew the two mounting screws:
[[File:IMG_3414.JPG|thumb|480px]]
[[File:IMG_3414.JPG|thumb|480px|center]]


Set off to the side:
Set off to the side:
[[File:IMG_3415_0.JPG|thumb|480px]]
[[File:IMG_3415_0.JPG|thumb|480px|center]]


=== Step 8: Removing the front frame cover ===
=== Step 8: Removing the front frame cover ===
Unscrew the four mounting screws and remove the front frame cover. Set to the side.
Unscrew the four mounting screws and remove the front frame cover. Set to the side.


[[File:IMG_3416_1.JPG|thumb|360px]]
[[File:IMG_3416_1.JPG|thumb|360px|center]]


=== Step 9: removing the side rails ===
=== Step 9: removing the side rails ===
Remove the four mounting screws from the two side rails and set them off to the side.
Remove the four mounting screws from the two side rails and set them off to the side.


[[File:IMG_3421_0.JPG|thumb|480px]]
[[File:IMG_3421_0.JPG|thumb|480px|center]]
[[File:IMG_3422.JPG|thumb|480px]]
[[File:IMG_3422.JPG|thumb|480px|center]]


=== Step 10: Removing the print drum rear frame assembly ===
=== Step 10: Removing the print drum rear frame assembly ===
Slide the rear frame assembly off and set off to the side.
Slide the rear frame assembly off and set off to the side.


[[File:step-10.JPG|thumb|480px]]
[[File:step-10.JPG|thumb|480px|center]]


=== Step 11: Removing the print drum joint ===
=== Step 11: Removing the print drum joint ===
Remove the three mounting screws and slide the print drum joint off and set to the side.
Remove the three mounting screws and slide the print drum joint off and set to the side.


[[File:IMG_3425.JPG|thumb|480px]]
[[File:IMG_3425.JPG|thumb|480px|center]]
[[File:IMG_3426.JPG|thumb|480px]]
[[File:IMG_3426.JPG|thumb|480px|center]]


=== Step 12: Removing the rear flange ===
=== Step 12: Removing the rear flange ===
Use the c-ring removal tool to remove the c-ring.
Use the c-ring removal tool to remove the c-ring.


[[File:IMG_3430.JPG|thumb|480px]]
[[File:IMG_3430.JPG|thumb|480px|center]]
[[File:IMG_3433.JPG|thumb|480px]]
[[File:IMG_3433.JPG|thumb|480px|center]]


Set the flange off to the side:
Set the flange off to the side:
[[File:IMG_3434.JPG|thumb|480px]]
[[File:IMG_3434.JPG|thumb|480px|center]]


=== Step 13: Removing the ink distributor ===
=== Step 13: Removing the ink distributor ===
Remove the four mounting screws and remove the ink distributor. Set off to the side.
Remove the four mounting screws and remove the ink distributor. Set off to the side.


[[File:IMG_3436_2.JPG|thumb|480px]]
[[File:IMG_3436_2.JPG|thumb|480px|center]]
[[File:IMG_3438.JPG|thumb|480px]]
[[File:IMG_3438.JPG|thumb|480px|center]]


=== Step 14: Taping the wire harness to the side ===
=== Step 14: Taping the wire harness to the side ===
In preparation for cleaning, tape the wire harness to the side of the drum frame.
In preparation for cleaning, tape the wire harness to the side of the drum frame.


[[File:IMG_3439.JPG|thumb|480px]]
[[File:IMG_3439.JPG|thumb|480px|center]]
[[File:IMG_3440.JPG|thumb|480px]]
[[File:IMG_3440.JPG|thumb|480px|center]]


=== Step 15: Cleaning, cleaning, and more cleaning ===
=== Step 15: Cleaning, cleaning, and more cleaning ===
Lift the rear of the drum and set onto the lifting blocks.
Lift the rear of the drum and set onto the lifting blocks.


[[File:IMG_3441.JPG|thumb|480px]]
[[File:IMG_3441.JPG|thumb|480px|center]]


To start use a piece of cardstock (or similar) to squeegee off as much ink as you can from the rollers.
To start use a piece of cardstock (or similar) to squeegee off as much ink as you can from the rollers.


[[File:IMG_3443.JPG|thumb|480px]]
[[File:IMG_3443.JPG|thumb|480px|center]]


Once major globs of ink have been removed, go through with paper towels and q-tips soaked in denatured alcohol and clean everything you can get to. The more thorough the cleaning job the better the outcome.
Once major globs of ink have been removed, go through with paper towels and q-tips soaked in denatured alcohol and clean everything you can get to. The more thorough the cleaning job the better the outcome.
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''Note: It is possible to remove the roller sub-assembly but for the purpose of cleaning to change colors I don’t think this is a necessary step. A tutorial on removing and adjusting the roller sub assembly will come in the future but it is a very labor intensive process.''
''Note: It is possible to remove the roller sub-assembly but for the purpose of cleaning to change colors I don’t think this is a necessary step. A tutorial on removing and adjusting the roller sub assembly will come in the future but it is a very labor intensive process.''


[[File:IMG_3446_0.JPG|thumb|480px]]
[[File:IMG_3446_0.JPG|thumb|480px|center]]


The drum can be flipped for cleaning.
The drum can be flipped for cleaning.


[[File:IMG_3449.JPG|thumb|480px]]
[[File:IMG_3449.JPG|thumb|480px|center]]


You can remove these two side gears to clean more thoroughly. If you do, note the side of the small pinion gear. It is one directional, so if you put it back wrong side first, '''you will damage your drum.'''
You can remove these two side gears to clean more thoroughly. If you do, note the side of the small pinion gear. It is one directional, so if you put it back wrong side first, '''you will damage your drum.'''


[[File:IMG_3450_0.JPG|thumb|480px]]
[[File:IMG_3450_0.JPG|thumb|480px|center]]


Fully cleaned rollers:
Fully cleaned rollers:
[[File:IMG_3460.JPG|thumb|480px]]
[[File:IMG_3460.JPG|thumb|480px|center]]


Once the rollers are clean, use your dust remover spray to get rid of any paper/dust particles that have built up inside of the drum.
Once the rollers are clean, use your dust remover spray to get rid of any paper/dust particles that have built up inside of the drum.


[[File:IMG_3459.JPG|thumb|480px]]
[[File:IMG_3459.JPG|thumb|480px|center]]


=== Step 16: Remounting the rear flange ===
=== Step 16: Remounting the rear flange ===
[[File:IMG_3461.JPG|thumb|480px]]
[[File:IMG_3461.JPG|thumb|480px|center]]


Thoroughly clean the rear flange and slide it back into place. Reattach the c-ring.
Thoroughly clean the rear flange and slide it back into place. Reattach the c-ring.


[[File:IMG_3464.JPG|thumb|480px]]
[[File:IMG_3464.JPG|thumb|480px|center]]


=== Step 17: Remounting the print drum joint ===
=== Step 17: Remounting the print drum joint ===
Remount the print drum joint with the three corresponding mounting screws.
Remount the print drum joint with the three corresponding mounting screws.


[[File:IMG_3465.JPG|thumb|480px]]
[[File:IMG_3465.JPG|thumb|480px|center]]
[[File:IMG_3466.JPG|thumb|480px]]
[[File:IMG_3466.JPG|thumb|480px|center]]


=== Step 18: Clean and remount ink distributor ===
=== Step 18: Clean and remount ink distributor ===
Unscrew the 6 mounting screws on the ink distributor:
Unscrew the 6 mounting screws on the ink distributor:


[[File:IMG_3471.JPG|thumb|480px]]
[[File:IMG_3471.JPG|thumb|480px|center]]


Using a turkey baster or a lab squirt bottle, flush out the ink with denatured alcohol. Use q-tips to clean around the entry hole.
Using a turkey baster or a lab squirt bottle, flush out the ink with denatured alcohol. Use q-tips to clean around the entry hole.


[[File:IMG_3473.JPG|thumb|480px]]
[[File:IMG_3473.JPG|thumb|480px|center]]


Alternate method: start by letting the ink distributor soak overnight to help loosen the ink up.
Alternate method: start by letting the ink distributor soak overnight to help loosen the ink up.
Line 207: Line 206:
Once it is thoroughly cleaned, remount the ink distributor to the base plate (6 screws) and remount into the print drum (4 screws):
Once it is thoroughly cleaned, remount the ink distributor to the base plate (6 screws) and remount into the print drum (4 screws):


[[File:IMG_3481.JPG|thumb|480px]]
[[File:IMG_3481.JPG|thumb|480px|center]]
[[File:IMG_3485.JPG|thumb|480px]]
[[File:IMG_3485.JPG|thumb|480px|center]]


=== Step 19: Cleaning and remounting the ink sensor PCB ===
=== Step 19: Cleaning and remounting the ink sensor PCB ===
Using the anti-static wipes and anti-static wrist band, remove the ink from the two sensor points.
Using the anti-static wipes and anti-static wrist band, remove the ink from the two sensor points.


[[File:IMG_3487.JPG|thumb|480px]]
[[File:IMG_3487.JPG|thumb|480px|center]]


Carefully remount the ink sensor back into the print drum (2 screws).
Carefully remount the ink sensor back into the print drum (2 screws).


[[File:IMG_3488.JPG|thumb|480px]]
[[File:IMG_3488.JPG|thumb|480px|center]]


Reconnect the connector.
Reconnect the connector.


[[File:IMG_3489.JPG|thumb|480px]]
[[File:IMG_3489.JPG|thumb|480px|center]]


=== Step 20: Cleaning and remounting the ink cartridge guide assembly ===
=== Step 20: Cleaning and remounting the ink cartridge guide assembly ===
[[File:IMG_3490.JPG|thumb|480px]]
[[File:IMG_3490.JPG|thumb|480px|center]]


Clean off any ink that may have gotten on the ink cartridge guide assembly. Remount into the drum (4 screws).
Clean off any ink that may have gotten on the ink cartridge guide assembly. Remount into the drum (4 screws).


[[File:IMG_3495.JPG|thumb|480px]]
[[File:IMG_3495.JPG|thumb|480px|center]]
[[File:IMG_3496.JPG|thumb|480px]]
[[File:IMG_3496.JPG|thumb|480px|center]]


Untape the wire harness and reconnect the two connectors.
Untape the wire harness and reconnect the two connectors.


=== Step 21: Clean and remount the ink pump assembly ===
=== Step 21: Clean and remount the ink pump assembly ===
[[File:IMG_3497.JPG|thumb|480px]]
[[File:IMG_3497.JPG|thumb|480px|center]]


Two step process:
Two step process:
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# Second, remove the four plate screws to get inside of the ink pump assembly. Clean out the ink with q-tips.
# Second, remove the four plate screws to get inside of the ink pump assembly. Clean out the ink with q-tips.


[[File:IMG_3502.JPG|thumb|480px]]
[[File:IMG_3502.JPG|thumb|480px|center]]
[[File:IMG_3509.JPG|thumb|480px]]
[[File:IMG_3509.JPG|thumb|480px|center]]


Reassemble unit and mount back in drum (2 screws). Reconnect the two connectors.
Reassemble unit and mount back in drum (2 screws). Reconnect the two connectors.
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Thoroughly clean and remount the two scraper plates (1 screw each). Note: they are marked with front and rear.
Thoroughly clean and remount the two scraper plates (1 screw each). Note: they are marked with front and rear.


[[File:IMG_3510.JPG|thumb|480px]]
[[File:IMG_3510.JPG|thumb|480px|center]]
[[File:IMG_3515.JPG|thumb|480px]]
[[File:IMG_3515.JPG|thumb|480px|center]]


=== Step 23: Remount the side rails and rear frame assembly ===
=== Step 23: Remount the side rails and rear frame assembly ===
Slide the rear frame assembly back on and screw on the two side rails (2 screws each)
Slide the rear frame assembly back on and screw on the two side rails (2 screws each)


[[File:IMG_3517.JPG|thumb|480px]]
[[File:IMG_3517.JPG|thumb|480px|center]]


=== Step 24: Remounting the front frame cover ===
=== Step 24: Remounting the front frame cover ===
Remount the front frame cover (4 screws)
Remount the front frame cover (4 screws)


[[File:IMG_3524.JPG|thumb|480px]]
[[File:IMG_3524.JPG|thumb|480px|center]]


=== Step 25: Cleaning and remounting the print drum body ===
=== Step 25: Cleaning and remounting the print drum body ===
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Use the parchment paper underneath it to help keep ink and alcohol off of your surfaces.
Use the parchment paper underneath it to help keep ink and alcohol off of your surfaces.


[[File:IMG_3534.JPG|thumb|480px]]
[[File:IMG_3534.JPG|thumb|480px|center]]


Note the front and rear symbols on the print drum body, that is the direction it will re-wrap onto the drum:
Note the front and rear symbols on the print drum body, that is the direction it will re-wrap onto the drum:
[[File:IMG_3540.JPG|thumb|480px]]
[[File:IMG_3540.JPG|thumb|480px|center]]


Loosely put a screw into the indicated hole on both sides of the drum. (2 screws) There is a small metal tab that sticks out on both sides to help you find the correct hole:
Loosely put a screw into the indicated hole on both sides of the drum. (2 screws) There is a small metal tab that sticks out on both sides to help you find the correct hole:
[[File:IMG_3542.JPG|thumb|480px]]
[[File:IMG_3542.JPG|thumb|480px|center]]


Slide print drum body under and up onto the drum:
Slide print drum body under and up onto the drum:
[[File:IMG_3548.JPG|thumb|480px]]
[[File:IMG_3548.JPG|thumb|480px|center]]


Using the keyhole shaped hole, slide onto the loosely mounted screws:
Using the keyhole shaped hole, slide onto the loosely mounted screws:
[[File:IMG_3552.JPG|thumb|480px]]
[[File:IMG_3552.JPG|thumb|480px|center]]


Loosely put in the two screws where the arrows are indicated on the drum body:
Loosely put in the two screws where the arrows are indicated on the drum body:
[[File:IMG_3554.JPG|thumb|480px]]
[[File:IMG_3554.JPG|thumb|480px|center]]


Work your way down the drum on either side and loosely put the remaining screws into the holes (6 screws). '''DO NOT FULLY TIGHTEN SCREWS YET.'''
Work your way down the drum on either side and loosely put the remaining screws into the holes (6 screws). '''DO NOT FULLY TIGHTEN SCREWS YET.'''


Using the two screen springs (screen jigs), tension the drum to the two metal nubs sticking out on both sides (see photo):
Using the two screen springs (screen jigs), tension the drum to the two metal nubs sticking out on both sides (see photo):
[[File:IMG_3557.JPG|thumb|480px]]
[[File:IMG_3557.JPG|thumb|480px|center]]
[[File:IMG_3559.JPG|thumb|480px]]
[[File:IMG_3559.JPG|thumb|480px|center]]


Before tightening the ten screws, check the print drum body to make sure it is lined up nicely against the flange walls:
Before tightening the ten screws, check the print drum body to make sure it is lined up nicely against the flange walls:
[[File:IMG_3562.JPG|thumb|480px]]
[[File:IMG_3562.JPG|thumb|480px|center]]


Tighten the ten screws and add in two additional screws noted in the photo. Use the screws from the screen assembly to temporarily hold the print drum body down for taping.
Tighten the ten screws and add in two additional screws noted in the photo. Use the screws from the screen assembly to temporarily hold the print drum body down for taping.
[[File:IMG_3574.JPG|thumb|480px]]
[[File:IMG_3574.JPG|thumb|480px|center]]


Once those two screws are tight, remove the screen springs.
Once those two screws are tight, remove the screen springs.


Thoroughly wipe the surface of the print drum body with a microfiber cloth and alcohol. Remove any grease/fingerprints/residue. Using the screen tape, run a 1-inch strip to tape down the seam of the print drum body.
Thoroughly wipe the surface of the print drum body with a microfiber cloth and alcohol. Remove any grease/fingerprints/residue. Using the screen tape, run a 1-inch strip to tape down the seam of the print drum body.
[[File:IMG_3576.JPG|thumb|480px]]
[[File:IMG_3576.JPG|thumb|480px|center]]


Once taped, the two temporary screws can be removed.
Once taped, the two temporary screws can be removed.
[[File:IMG_3577.JPG|thumb|480px]]
[[File:IMG_3577.JPG|thumb|480px|center]]


=== Step 26: Remounting the clamp plate base assembly ===
=== Step 26: Remounting the clamp plate base assembly ===
Remount the clamp plate base (4 screws)
Remount the clamp plate base (4 screws)


[[File:IMG_3579.JPG|thumb|480px]]
[[File:IMG_3579.JPG|thumb|480px|center]]
[[File:IMG_3580.JPG|thumb|480px]]
[[File:IMG_3580.JPG|thumb|480px|center]]


=== Step 27: Cleaning and rewrapping the screen assembly ===
=== Step 27: Cleaning and rewrapping the screen assembly ===
Lay down the parchment paper, put the screen on it. Using the microfiber cloth and alcohol, wipe and clean the screen as best as you can.
Lay down the parchment paper, put the screen on it. Using the microfiber cloth and alcohol, wipe and clean the screen as best as you can.


[[File:IMG_3584.JPG|thumb|480px]]
[[File:IMG_3584.JPG|thumb|480px|center]]


Once clean, slide the screen under the drum, up and over.
Once clean, slide the screen under the drum, up and over.


[[File:IMG_3586.JPG|thumb|480px]]
[[File:IMG_3586.JPG|thumb|480px|center]]


Tighten the four mounting screws on the top hanger.
Tighten the four mounting screws on the top hanger.


[[File:IMG_3587.JPG|thumb|480px]]
[[File:IMG_3587.JPG|thumb|480px|center]]


Wrap the other end of the screen up on the other side. Using the screen springs, tension the screen to the drum from the two metal nubs shown earlier.
Wrap the other end of the screen up on the other side. Using the screen springs, tension the screen to the drum from the two metal nubs shown earlier.


[[File:IMG_3590.JPG|thumb|480px]]
[[File:IMG_3590.JPG|thumb|480px|center]]


Before setting the two screws and tightening, inspect the screen all the way around to make sure it’s wrapping evenly and there are no wrinkles in the screen.
Before setting the two screws and tightening, inspect the screen all the way around to make sure it’s wrapping evenly and there are no wrinkles in the screen.
Line 330: Line 329:
Tighten the two screws.
Tighten the two screws.


[[File:IMG_3593.JPG|thumb|480px]]
[[File:IMG_3593.JPG|thumb|480px|center]]


Remove the screen springs.
Remove the screen springs.
Line 337: Line 336:
With two fingers on the front position and rear position adjustment buttons, hold them down and turn on the machine to put it into test mode.
With two fingers on the front position and rear position adjustment buttons, hold them down and turn on the machine to put it into test mode.


[[File:IMG_3599.JPG|thumb|480px]]
[[File:IMG_3599.JPG|thumb|480px|center]]


Put in the freshly cleaned drum with the desired ink tube.
Put in the freshly cleaned drum with the desired ink tube.


[[File:IMG_3602.JPG|thumb|480px]]
[[File:IMG_3602.JPG|thumb|480px|center]]


There may be an error message that comes up, clear it by pressing stop. Enter code: 117 and hit start. Once it finishes the action, hit stop and enter code: 890 and hit start. Once it finishes the action hit stop, the new color will be programmed into the drum.
There may be an error message that comes up, clear it by pressing stop. Enter code: 117 and hit start. Once it finishes the action, hit stop and enter code: 890 and hit start. Once it finishes the action hit stop, the new color will be programmed into the drum.


[[File:IMG_3607.JPG|thumb|480px]]
[[File:IMG_3607.JPG|thumb|480px|center]]


At this point, turn off the machine and turn it back on again in test mode. Enter code: 887 and hit start. This will re-ink the drum with the new color. This process may take a minute or two. Once it’s done, make a test master by entering code: 80 and press start. Once the test master is wrapped on the drum, hold down the reset button to put the machine back into normal mode. Run about 50 prints to get the ink working its way through the drum and to make sure everything is printing correctly. If you're going from a dark color to a much lighter color you may have to run a few more prints to make sure you clear out any previous ink residue.
At this point, turn off the machine and turn it back on again in test mode. Enter code: 887 and hit start. This will re-ink the drum with the new color. This process may take a minute or two. Once it’s done, make a test master by entering code: 80 and press start. Once the test master is wrapped on the drum, hold down the reset button to put the machine back into normal mode. Run about 50 prints to get the ink working its way through the drum and to make sure everything is printing correctly. If you're going from a dark color to a much lighter color you may have to run a few more prints to make sure you clear out any previous ink residue.


[[File:IMG_3615.JPG|thumb|480px]]
[[File:IMG_3615.JPG|thumb|480px|center]]


That's it! Enjoy your freshly cleaned drum and your new Riso color.
That's it! Enjoy your freshly cleaned drum and your new Riso color.

Revision as of 02:27, 5 January 2026

This is the draft of an article, it is incomplete or in-progress.

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This tutorial applies to MZ/EZ/RZ drums. The purpose of this tutorial is to clean and prep a drum to change the color. This tutorial simply shows taking apart and cleaning the drum for new ink. Cleaning the drum instead of trying to flush out the old color with new ink will save you a lot of ink and paper.

Please note: I am not a certified Riso tech. This method has worked for me through trial and error and reading through the technical manuals. Find a clean work space and lay down some kraft/butcher paper because it will be messy!

Main items you will need

  • C-ring removal tool
  • Screen Spring (screen assembly jig – Part # 021-16007-005, Any Riso dealer should have this. About $15 for the set of 2)
  • Dust remover spray
  • Denatured Alcohol
  • Gloves
  • Parchment paper
  • Paper towels
  • Q-tips
  • Solvent and water resistant screen-tape (any silk screen vendor should carry this)

Additional helpful items

  • Anti-static wrist band
  • Anti-static wipes
  • Micro fiber rags
  • 2x4 support blocks (4)

Steps

Step 1: Removing the screen assembly

Remove the two end hanger screws (#1 in photo, the second screw is on the opposite side of the drum). Remove the four top hanger screws (#2 in photo, the third and fourth screws are on the opposite side of the drum).

File:Step-1-cont 0.JPG

With one hand on the top of the screen assembly, rotate drum and lift the screen off of the drum body.

Lay the screen down on parchment paper and set to the side.

Step 2: Removing the clamp plate base assembly

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Remove the four screws on the clamp plate base assembly.

File:Step-2-2.JPG

Step 3: Removing the print drum body

File:Step-3.jpg

Loosen the two mounting screws in the keyhole-shaped holes at the front and rear side of the print drum body.

File:Step-3-2.JPG

Remove the remaining eight mounting screws on the print drum body.

File:Step-3-3.JPG

With one hand holding the print drum body in place, remove the tape from the drum. Carefully pull the print drum body up. Remove the remaining two screws holding it in place. Set the print drum body aside on a sheet of parchment paper.

Step 4: Removing the scraper plates: front and rear

Remove the front and rear scraper plates (one screw each)

File:Step-4.JPG

Set off to the side.

File:Step-4-2.JPG

Step 5: Removing the ink pump assembly

Detach the two connectors from the pump assembly.

Connector 1:

File:Step-5.JPG

Connector 2:

File:Step-5-2.JPG

Remove the two mounting screws on either side

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Set the ink pump assembly off to the side

File:Step-5-4.JPG

Step 6: Removing the ink cartridge guide assembly

Remove the four mounting screws

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Disconnect the first connector:

File:IMG 3396.JPG

Unsnap the two wire guides from the drum frame and disconnect the second connector:

File:IMG 3402 0.JPG

Set the unit off to the side

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Step 7: removing the ink sensor PCB

Put on your anti-static wrist band if you have one. Disconnect the connector:

File:IMG 3407.JPG

Unscrew the two mounting screws:

File:IMG 3414.JPG

Set off to the side:

File:IMG 3415 0.JPG

Step 8: Removing the front frame cover

Unscrew the four mounting screws and remove the front frame cover. Set to the side.

File:IMG 3416 1.JPG

Step 9: removing the side rails

Remove the four mounting screws from the two side rails and set them off to the side.

File:IMG 3421 0.JPG
File:IMG 3422.JPG

Step 10: Removing the print drum rear frame assembly

Slide the rear frame assembly off and set off to the side.

File:Step-10.JPG

Step 11: Removing the print drum joint

Remove the three mounting screws and slide the print drum joint off and set to the side.

File:IMG 3425.JPG
File:IMG 3426.JPG

Step 12: Removing the rear flange

Use the c-ring removal tool to remove the c-ring.

File:IMG 3430.JPG
File:IMG 3433.JPG

Set the flange off to the side:

File:IMG 3434.JPG

Step 13: Removing the ink distributor

Remove the four mounting screws and remove the ink distributor. Set off to the side.

File:IMG 3436 2.JPG
File:IMG 3438.JPG

Step 14: Taping the wire harness to the side

In preparation for cleaning, tape the wire harness to the side of the drum frame.

File:IMG 3439.JPG
File:IMG 3440.JPG

Step 15: Cleaning, cleaning, and more cleaning

Lift the rear of the drum and set onto the lifting blocks.

File:IMG 3441.JPG

To start use a piece of cardstock (or similar) to squeegee off as much ink as you can from the rollers.

File:IMG 3443.JPG

Once major globs of ink have been removed, go through with paper towels and q-tips soaked in denatured alcohol and clean everything you can get to. The more thorough the cleaning job the better the outcome.

Note: It is possible to remove the roller sub-assembly but for the purpose of cleaning to change colors I don’t think this is a necessary step. A tutorial on removing and adjusting the roller sub assembly will come in the future but it is a very labor intensive process.

File:IMG 3446 0.JPG

The drum can be flipped for cleaning.

File:IMG 3449.JPG

You can remove these two side gears to clean more thoroughly. If you do, note the side of the small pinion gear. It is one directional, so if you put it back wrong side first, you will damage your drum.

File:IMG 3450 0.JPG

Fully cleaned rollers:

File:IMG 3460.JPG

Once the rollers are clean, use your dust remover spray to get rid of any paper/dust particles that have built up inside of the drum.

File:IMG 3459.JPG

Step 16: Remounting the rear flange

File:IMG 3461.JPG

Thoroughly clean the rear flange and slide it back into place. Reattach the c-ring.

File:IMG 3464.JPG

Step 17: Remounting the print drum joint

Remount the print drum joint with the three corresponding mounting screws.

File:IMG 3465.JPG
File:IMG 3466.JPG

Step 18: Clean and remount ink distributor

Unscrew the 6 mounting screws on the ink distributor:

File:IMG 3471.JPG

Using a turkey baster or a lab squirt bottle, flush out the ink with denatured alcohol. Use q-tips to clean around the entry hole.

File:IMG 3473.JPG

Alternate method: start by letting the ink distributor soak overnight to help loosen the ink up.

Once it is thoroughly cleaned, remount the ink distributor to the base plate (6 screws) and remount into the print drum (4 screws):

File:IMG 3481.JPG
File:IMG 3485.JPG

Step 19: Cleaning and remounting the ink sensor PCB

Using the anti-static wipes and anti-static wrist band, remove the ink from the two sensor points.

File:IMG 3487.JPG

Carefully remount the ink sensor back into the print drum (2 screws).

File:IMG 3488.JPG

Reconnect the connector.

File:IMG 3489.JPG

Step 20: Cleaning and remounting the ink cartridge guide assembly

File:IMG 3490.JPG

Clean off any ink that may have gotten on the ink cartridge guide assembly. Remount into the drum (4 screws).

File:IMG 3495.JPG
File:IMG 3496.JPG

Untape the wire harness and reconnect the two connectors.

Step 21: Clean and remount the ink pump assembly

File:IMG 3497.JPG

Two step process:

  1. First, remove the two screws on the black adaptor nozzle. Clean the unit.
  2. Second, remove the four plate screws to get inside of the ink pump assembly. Clean out the ink with q-tips.
File:IMG 3502.JPG
File:IMG 3509.JPG

Reassemble unit and mount back in drum (2 screws). Reconnect the two connectors.

Step 22: Cleaning and remounting the front and rear ink scraper plates

Thoroughly clean and remount the two scraper plates (1 screw each). Note: they are marked with front and rear.

File:IMG 3510.JPG
File:IMG 3515.JPG

Step 23: Remount the side rails and rear frame assembly

Slide the rear frame assembly back on and screw on the two side rails (2 screws each)

File:IMG 3517.JPG

Step 24: Remounting the front frame cover

Remount the front frame cover (4 screws)

File:IMG 3524.JPG

Step 25: Cleaning and remounting the print drum body

Using the microfiber rag and alcohol, thoroughly clean both sides of the print drum body. Be sure to remove all original tape residue.

Use the parchment paper underneath it to help keep ink and alcohol off of your surfaces.

File:IMG 3534.JPG

Note the front and rear symbols on the print drum body, that is the direction it will re-wrap onto the drum:

File:IMG 3540.JPG

Loosely put a screw into the indicated hole on both sides of the drum. (2 screws) There is a small metal tab that sticks out on both sides to help you find the correct hole:

File:IMG 3542.JPG

Slide print drum body under and up onto the drum:

File:IMG 3548.JPG

Using the keyhole shaped hole, slide onto the loosely mounted screws:

File:IMG 3552.JPG

Loosely put in the two screws where the arrows are indicated on the drum body:

File:IMG 3554.JPG

Work your way down the drum on either side and loosely put the remaining screws into the holes (6 screws). DO NOT FULLY TIGHTEN SCREWS YET.

Using the two screen springs (screen jigs), tension the drum to the two metal nubs sticking out on both sides (see photo):

File:IMG 3557.JPG
File:IMG 3559.JPG

Before tightening the ten screws, check the print drum body to make sure it is lined up nicely against the flange walls:

File:IMG 3562.JPG

Tighten the ten screws and add in two additional screws noted in the photo. Use the screws from the screen assembly to temporarily hold the print drum body down for taping.

File:IMG 3574.JPG

Once those two screws are tight, remove the screen springs.

Thoroughly wipe the surface of the print drum body with a microfiber cloth and alcohol. Remove any grease/fingerprints/residue. Using the screen tape, run a 1-inch strip to tape down the seam of the print drum body.

File:IMG 3576.JPG

Once taped, the two temporary screws can be removed.

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Step 26: Remounting the clamp plate base assembly

Remount the clamp plate base (4 screws)

File:IMG 3579.JPG
File:IMG 3580.JPG

Step 27: Cleaning and rewrapping the screen assembly

Lay down the parchment paper, put the screen on it. Using the microfiber cloth and alcohol, wipe and clean the screen as best as you can.

File:IMG 3584.JPG

Once clean, slide the screen under the drum, up and over.

File:IMG 3586.JPG

Tighten the four mounting screws on the top hanger.

File:IMG 3587.JPG

Wrap the other end of the screen up on the other side. Using the screen springs, tension the screen to the drum from the two metal nubs shown earlier.

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Before setting the two screws and tightening, inspect the screen all the way around to make sure it’s wrapping evenly and there are no wrinkles in the screen.

Tighten the two screws.

File:IMG 3593.JPG

Remove the screen springs.

Step 28: Programming the new color for your drum

With two fingers on the front position and rear position adjustment buttons, hold them down and turn on the machine to put it into test mode.

File:IMG 3599.JPG

Put in the freshly cleaned drum with the desired ink tube.

File:IMG 3602.JPG

There may be an error message that comes up, clear it by pressing stop. Enter code: 117 and hit start. Once it finishes the action, hit stop and enter code: 890 and hit start. Once it finishes the action hit stop, the new color will be programmed into the drum.

File:IMG 3607.JPG

At this point, turn off the machine and turn it back on again in test mode. Enter code: 887 and hit start. This will re-ink the drum with the new color. This process may take a minute or two. Once it’s done, make a test master by entering code: 80 and press start. Once the test master is wrapped on the drum, hold down the reset button to put the machine back into normal mode. Run about 50 prints to get the ink working its way through the drum and to make sure everything is printing correctly. If you're going from a dark color to a much lighter color you may have to run a few more prints to make sure you clear out any previous ink residue.

File:IMG 3615.JPG

That's it! Enjoy your freshly cleaned drum and your new Riso color.

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