MUTOH ValueJet VJ-1638UH Installation and operation manual

Daily Maintenance Sheet for VJ-1638UH
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The content of this documents are based on the specication of the rmware Ver.1.04 or later.
Daily maintenance
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When to maintain:
After operation (Be sure to perform the following maintenance)
When the media strikes the print head
Required Items:
(a) Plastic gloves (Supplied accessories or
Commercial item)
(b) Rubber gloves (Supplied accessories or
Commercial item)
(c) Protective goggles (Supplied accessories)
(d) Paper towel (Supplied accessories)
or Polyester knit wiper (Optional accessories)
(e) Dropper (Supplied accessories)
(f) Dedicated maintenance cleaner (Optional
accessories)
(g) Plastic cup (Supplied accessories)
(h) Cleaning stick (Supplied accessories or Optional
accessories)
(i) Stick scraper (Supplied accessories)
or Scraper (Supplied accessories)
Use a paper towel supplied with the printer or optional
Polyester knit wiper. DO NOT use a tissue.
Lints or akes on tissue may cause damage to the print head.
DO NOT use non-dedicated maintenance cleaner.
Press the [MENU] key on the operation panel.
When [Menu 1: Sleep Mode >] appears on the operation panel, press the [>] key.
Press the [+] / [-] key on the operation panel to select [Sleep Mode 3: Start].
Press the [Enter] key on the operation panel.
When [Start Sleep Mode?] appears on the operation panel, press the [Enter] key.
When [Daily Maint.: Start] appears on the operation panel, press the [Enter] key.
When [Daily Maint.: End] appears on the operation panel, you can start the maintenance
with following steps.
Preparation:
Wear the rubber gloves (white) over the plastic
gloves (pink).
Wear protective goggles.
Important!
Before performing maintenance, make sure to read
“How to handle UV inkjet printer / its supplies”
(supplied with the printer).
Skin or eye contact with UV curable ink may cause skin
inammation or allergic reaction.
For this operation, be sure to wear the supplied gloves
(or solvent resistant gloves) and goggles to prevent ink
from contacting with your eyes or skin.
CAUTION
Make sure to complete this maintenance within 10 minutes while the printer is in Daily maintenance state.
Open the maintenance cover on the left of the
printer and remove it.
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Important!
During cleaning, please note the followings:
• Always follow this steps to perform daily maintenance.
When moistening the surface of nozzles, do not use the cleaning stick already used to clean the print head
circumference, cleaning wiper or cap circumference. Doing so may result in damage to the print head.
• Always use a new cleaning stick and dampen it with dedicated maintenance cleaner.
DO NOT use non-dedicated maintenance cleaner. It may cause nozzle clogging.
• Do not touch the tip of a cleaning stick with ngers. If sebum is adhered, it can cause damage to the print
head.
• Do not reuse a cleaning stick. Dusts can adhere causing damage to the print head.
2. Moistening the surface of print head nozzles
Put a cleaning stick in the plastic cup.
Use the dropper to dampen the swab of
cleaning stick with dedicated maintenance
cleaner.
(Amount used: 0.5 ml)
DO NOT rub into the nozzle surface.
It can cause damage to the print head.
If the entire nozzle surface has been moistened,
you can stop it.
Lightly touch with the cleaning stick to moisten
the nozzle surface.
Repeat it a couple of times to moisten the entire
nozzle surface.
Next clean the print head circumference.
Look the bottom of the carriage.
Using the cleaning stick dampened with the
maintenance cleaner, moisten the surface of the
print head nozzles.
1.Cleaning of UV Lamp
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Check for any ink or dust on the UV lamps (x2).
If any ink or dust is found, using a paper towel, remove ink and dust from the UV lamp.
If no ink or dust is found on the UV lamp, skip this step and move on to “2. Moistening the
surface of print head nozzles”.
Important!
• Make sure to use the scraper supplied with the printer.
• Never use the corner of the scraper. It can damage the UV lamp.
• When using the scraper, do not apply too much pressure to the lamp. It can damage the UV lamp.
*If ink deposits cannot be removed with the paper towel, use the scraper supplied with the
printer.
Press the scraper on the ink deposits with a slight angle and scrape o the ink deposits.
Use the paper towel to clean the ink scraped from the lamp.
Scraper
*The illustration below shows an example when cleaning the left UV lamp.
Next moisten the surface of print head nozzles.
*When cleaning the right side UV lamp, use the stick scraper supplied with the printer.
Open the front cover. Then, press the stick scraper on the UV lamp surface and scrape ink
deposits o.
Use the paper towel to clean the ink scraped from the lamp.

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Open the maintenance cover on the right of the
printer and remove it.
4. Cleaning of cleaning wiper and the circumference of the cap
Attach the maintenance cover on the right of the printer and close it.
Next finish the daily maintenance.
DO NOT touch the absorber
(the yellow portions in the illustration right)
Use the cleaning stick to remove the ink and
dust on the circumference of the cap.
Cleaning required
Use the cleaning stick to clean the left side
surface of the cleaning wiper (a black rubber
part).
Clean the right side surface of the cleaning
wiper.
3. Cleaning of print head circumference
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1Look the bottom of the carriage.
Check if dusts and ink deposit are adhered.
Print head circumference (silver metal part)
Print head guide part (black plastic part)
If maintenance cleaner is splashed onto the printer,
use a paper towel to wipe it o.
If dusts or ink deposit are adhered, clean with a cleaning stick.
Print head circumference (silver metal part)
Print head guide part (black plastic part)
Cleaning required
DO NOT touch the surface of a print head (the yellow portions in the illustration below)
Attach the maintenance cover on the left of the printer and close it.
Next clean the cleaning wiper and the cap circumference.
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Print head circumference
Print head guide part

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Maintenance before leaving printer in sleep mode for a long time
<Preparation before the maintenance>
Make sure that there is enough ink in ink cartridges.
Empty the waste uid tank.
Perform “Daily maintenance (refer to this sheet)”.
To leave the printer in sleep mode for one week or longer, when one week has passed,
perform the following:
<Weekly maintenance>
Check the ink level.
Replace the relevant ink cartridge if “Ink Low” is displayed.
Agitate the ink in the ink cartridge.
Operation manual ”Disposal the waste uids”
Operation manual ”Ink Status menu”, ” Replacing ink cartridge”
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5. Finishing daily maintenance
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1Press the [Enter] key on the operation panel.
The printer automatically performs the Short
cleaning.
When the Short cleaning is complete, the printer
automatically enters to sleep mode.
Do not reuse a cleaning stick.
Dusts can adhere causing damage to the print head.
Check that the lid of the maintenance cleaner is shut properly and store it.
Important!
Daily Maint. : End
Dispose of the used cleaning stick.
Use a paper towel to wipe the maintenance cleaner off the dropper.
Dispose of the maintenance cleaner in the plastic cup and dry the cup well using the paper
towel.
Now the daily maintenance is complete.
For purchasing the maintenance items, contact your local Mutoh dealer or
nearest Mutoh sales oce.
Note
VJ-ULVA1-ML500Dedicated Maintenance cleaner
Part NumberName Minimum q’ty per order
PJ-POLYNITWPolyester knit wiper
RH2 Clean stickClean stick
1
300
100