Mimaki JV300 Replacement Parts Guide: Dampers, Encoder Scale, Capping Station, Pumps and Cables
AI-generated inspection scenes based on store product photos; not installation instructions or dimensional evidence. Product cards use actual store photos.
What Should You Confirm Before Buying JV300 Parts?
Start with the full printer model and a confirmed repair requirement, then match the part reference, connections and order contents. Dampers, encoder scales, caps, pumps and cables belong to different systems. Missing nozzles alone do not identify which one needs replacement.
This guide helps JV300 owners, technicians and purchasing teams turn a service finding into a clear parts order. It focuses on choosing the correct component and documenting fitment, with two current store listings to review and a separate inquiry route for parts that need further identification.
Separate Print Quality, Motion and Electrical Problems
A color fades during a job
Record the affected channel, nozzle check and timing. Ask for an ink-supply and maintenance-path assessment before choosing a damper or pump.
The image shifts or carriage errors appear
Save the exact error and a print sample. Have the motion system assessed before treating an encoder strip as the confirmed cause.
The fault began after service
Tell the technician which parts were touched and when the error started. A new cable is a purchase decision only after its identity and fault are checked.
Write the Entire Model, Including Width and Suffix
Use the nameplate, not an abbreviated job-sheet description. Record JV300-130 or JV300-160 and any Plus, A or other suffix exactly as shown, together with the serial number and installed ink family.
Mimaki's JV300 manual library separates normal, A and BS documentation. Select the document for your configuration; a shared series name is insufficient evidence that a replacement component is interchangeable.
- Photograph the full machine label and the old part code, including suffixes.
- Record the actual ink family and any changes to the supply system.
- Ask the technician to name the component and required quantity.
- Keep JV300, CJV300 and UCJV300 references distinct unless the specific part has documented cross-model fitment.
A JV300-160 listing also does not establish JV300-130 fitment. This matters particularly for parts whose dimensions or routing depend on machine width. Request a written match for your exact machine before treating a similar-looking item as a substitute.
Select the JV300/JV150 Option, Then Check the Actual Part
The JV300/JV150 damper option shares a product page with a separate JV34 option. Use the selected option name and its matching image when comparing your original part; the page title alone does not identify every variant.
- External shape: compare the body, retaining clips, locating features and connection positions.
- Ink path: confirm the installed ink family, tube ID and OD, fittings and any seals required.
- Part reference: send the original code or service-parts reference rather than assigning a code from appearance.
- Package: confirm quantity and whether connectors, seals or other accessories are included.
If your service record specifies M022253, use the M022253 reference guide alongside that record. Do not assume every item sold under a JV300 damper title has the same code, revision or ink suitability.
Ask for a current photo of the exact option before a multi-piece order. The front and rear views in a listing may show two sides of one design; they do not establish the supplied quantity. Keep the invoice description aligned with the option you approved.
Verify the Scale Identity Before Comparing Length
Generic appearance reference from the encoder listing. The scene does not establish JV300 fitment, strip length or optical resolution.
The JV300-160 encoder-strip listing identifies a model application, but some packaging photos on the page carry a JV33 label. Resolve that discrepancy with a current item photo and written part confirmation before ordering.
Do not infer that JV33 and JV300 strips are interchangeable from a shared photo. Equally, an unlabelled photo of a strip cannot prove that the correct model will be supplied.
- Match the original part reference and full printer model.
- Request the required optical resolution and its supporting specification.
- Compare length, width, end features and mounting arrangement against the correct service reference.
- Have the technician confirm the reader and motion system are suitable before replacing the strip.
Our 150 LPI vs 180 LPI guide explains what resolution evidence to request. It does not assign either value to your JV300. Do not cut, stretch or modify a strip to make an unconfirmed item fit.
Specify Cap Top, Absorber, Base or Complete Station
“Capping station” can be an imprecise purchasing description. Ask the repairer whether the job needs the sealing cap, an absorber, a supporting base or a complete assembly. Request an itemized offer rather than assuming a cap-top photo represents an entire station.
Mimaki's JV300/JV300 Plus care guide calls for daily cap and wiper care and warns against rubbing the nozzles. Follow the model-specific procedure and maintenance liquid suitable for the installed ink; do not substitute a generic solvent or mix cleaning fluids.
| Requested component | Check first | Before ordering |
|---|---|---|
| Cap top / cap assembly | Exact reference, sealing shape and mounting | Confirm drain connections, included seals and assembly scope. |
| Absorber / pad | Service item code and intended location | Do not assume a pad replaces a damaged cap or station mechanism. |
| Complete station | Frame, connection layout and machine revision | Get a packing list for caps, pump components, tubes, wiring and fasteners. |
We have not established a specific cap or complete-station SKU match for your machine in this guide. Send the original assembly reference and photos for a focused review before purchasing a broadly labelled Mimaki component.
Match the Connection Details Before Paying
For a pump, identify its location and function from the technician's diagnosis. Ask whether the offered item is a motor, pump mechanism, tube assembly or complete unit; those descriptions do not promise the same contents.
- Pump order: provide the old label, mounting photos, tube connections and any electrical connector. Request the applicable electrical specification where relevant.
- Cable order: provide the exact part code, both ends, pin count, pitch, length, contact-side orientation and connector locking arrangement.
- Revision: have the technician confirm the connected assemblies and required routing. A matching width or pin count alone is insufficient.
No JV300 pump or cable part number is assigned here from a generic product title. Obtain a specific confirmed match, especially when an online listing groups several printer brands or head types together.
Service isolation and normal standby are different situations. Mimaki's operation manual explains that automatic maintenance relies on main power remaining on during normal standby. Follow its appropriate procedure; do not leave a machine disconnected indefinitely as a general maintenance habit.
Send One Complete Compatibility Request
A useful inquiry lets the supplier compare the same evidence as the repairer. Send these details together instead of ordering several possible fixes:
- Full model, width, suffix, serial number and ink family.
- Original part code and clear front, rear, mounting and connection photos.
- Exact error, affected colors, nozzle-check image and when the fault occurs.
- Technician's diagnosis, required quantity and any system modifications.
- Requested order scope, selected option and accessories that must be included.
Check the Delivered Part Before Installation
External receiving inspection of the damper reference. Compare the actual delivered item with the approved order; the image does not show package contents or an installation position.
Photograph the unopened package and supplied labels, then compare the actual component with the approved reference and packing list. Check for damaged clips, contamination, bent contacts or missing accessories before the technician begins work.
Keep the old part available for comparison until the repair is checked. If the label, geometry or supplied quantity differs, pause and resolve it with the supplier. Do not modify the new part to overcome a mismatch.
Review the Relevant Store Listings
These are compatibility-review starting points, not a diagnosis or a promise that a purchase will correct the fault. Confirm current availability and the exact supplied item on the product page.
JV300/JV150 Replacement Damper
The link selects JV300/JV150. Confirm original part code, ink suitability and connections; the separate JV34 option is not selected.
Review JV300/JV150 Option
JV300-160 Encoder Strip Listing
Confirm the current supplied item first: other packaging photos on this page show JV33. Do not use the photo as fitment proof.
Review Encoder ListingNeed a Cap, Pump or Cable Match?
Send the original reference, full model and connection photos through UVINKPRO contact support. Ask for a written component match and order contents before payment.
Frequently Asked Questions
Are JV300, CJV300 and UCJV300 parts interchangeable?
Do not assume so from the family name. Confirm the individual part reference, machine revision, ink configuration and mounting or connection details.
Which option should I review on the JV300 damper page?
Start with the JV300/JV150 option, then compare your original part. The page also offers JV34, so verify the selected option before checkout.
Does the JV33 label on the encoder photo prove it fits my JV300?
No. Ask for a current photo and written confirmation of the supplied strip's identity, dimensions and required optical specification.
Will replacing the pump fix missing nozzles?
Missing nozzles alone do not establish pump failure. Have the ink supply, maintenance path and relevant error history assessed before buying a pump.
Can I choose a head cable by pin count alone?
No. Match the exact reference, pitch, length, contact orientation, connectors and connected assemblies with the technician's service information.
Product options and public manufacturer references checked September 27, 2026. Manufacturer names identify the equipment or reference application; the linked replacement listings do not establish manufacturer affiliation.