Free Evaluation
Inspect first, quote later.
We inspect your printhead first. If repair is possible, we provide a quotation. If not, it is returned without repair.
Support Center
Frequently Asked Questions
Practical answers about printhead cleaning, repair, shipping, evaluation, and after-sales support.
Service Assurance
Three Safeguards for Every Repair
A clear service process designed to reduce your repair risk before, during, and after service.
Pay After Repair
No successful repair, no repair charge.
Repair is completed before payment is collected. If the repair is unsuccessful, you do not pay the repair service fee.
After-Sales Support
Tested before return.
Repaired printheads are tested before return shipment. If a repair-related issue occurs after installation, we provide follow-up service according to our service terms.
Before You Ship
Pack Your Printhead Carefully
Proper preparation and protective packaging help reduce the risk of damage during transportation.
1
Flush residual ink
Carefully remove residual waste ink from the printhead before shipping.
2
Fill with preservation fluid
Fill the printhead with suitable preservation fluid to help protect the internal channels during transit.
3
Use the original box
Use the original printhead packaging whenever possible.
4
Secure ribbon cables
Fix ribbon cables in place and make sure they are not folded, pressed, or sharply bent.
5
Wrap with thick bubble wrap
Protect the entire printhead with multiple layers of thick bubble wrap.
6
Fill the outer carton
Use a rigid carton and fill all empty space so the printhead cannot move during transportation.
FAQ
Answers to Common Questions
Browse by category or search for a specific question.
General
Basic questions about service scope and how to get started.
Which printhead brands does Mocai Digital service?
We provide cleaning services for Epson, Ricoh, Kyocera, Konica, and Starfire printheads used in compatible water-based ink applications. Component-level repair is currently focused on selected Epson printheads.
Can I send a printhead from outside China?
Yes. International customers can send printheads to our service centers in China. Contact us before shipping so we can confirm the receiving address and service details.
What information should I send before shipping?
Please provide the printhead model, ink type, application, symptoms, and any available nozzle-test photos or error information.
Cleaning
Professional printhead cleaning, ink deposits, and cleaning solutions.
What problems can professional cleaning help with?
Cleaning may help with blocked nozzles, partial nozzle loss, ink crystallization, contamination, and other flow-related issues. Recovery depends on the printhead's actual condition.
Do you use your own cleaning solution?
Yes. Mocai Digital uses a proprietary cleaning solution developed from our service experience. It is designed to dissolve common ink deposits while remaining compatible with printhead materials such as metal components, ceramics, and seals.
Can I purchase Mocai cleaning solution?
Yes. Our professional cleaning solution is available for purchase. Contact our team for compatibility and ordering information.
Repair
Supported Epson models, evaluation, and repairability.
Which Epson printheads can you repair?
Current repair coverage includes selected Epson models such as i3200-A1, i3200-U1/E1, 4720, 5113, i1600, and S3200 series printheads.
What is the difference between cleaning and repair?
Cleaning addresses contamination, deposits, and ink-flow problems. Repair addresses certain electrical, circuit, or internal component failures that cannot be resolved through cleaning alone.
What happens if my printhead cannot be repaired?
We evaluate the printhead first. If it is not repairable, we will not proceed with a repair charge and the printhead can be returned according to the agreed shipping arrangement.
Shipping
How to prepare, pack, and send printheads to our service centers.
Can I send my printhead to either service center?
Yes. Both our Dongguan and Hangzhou service centers handle professional printhead cleaning and repair. Contact us first so we can confirm the receiving address.
How should I package a printhead for shipping?
Remove residual waste ink, fill with suitable preservation fluid, secure ribbon cables, use the original packaging whenever possible, wrap the printhead with thick bubble wrap, and fill all empty space in a rigid outer carton.
Pricing
Evaluation, quotation, payment, and service cost questions.
Do you charge before checking the printhead?
No. We first inspect the printhead and confirm whether repair is possible. A repair quotation is provided after evaluation.
When do I pay for repair?
Payment is collected after the repair is completed successfully. If the repair is unsuccessful, there is no repair service charge.
Support
Testing, return service, and after-sales support.
Do you test repaired printheads before return shipment?
Yes. Repaired printheads are tested before return shipment according to the model and service type.
What if there is a repair-related problem after installation?
Contact our technical team with the service record, printhead model, installation information, and nozzle-test results. We will review the case and provide follow-up support according to our service terms.
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Technical Support
Still Have Questions?
Send us your printhead model, ink type, and problem description. Our technical team will help determine the next step.