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Purpose / Function
To collect waste ink that’s flushed out during print‐head cleanings and other maintenance routines. It prevents this waste ink from spilling or damaging the printer internals. 
When to Replace
The printer/its software gives a warning message when the maintenance box is reaching its capacity or is full. At that point, the T6711 should be replaced. 
Compatible Printers
A number of Epson WorkForce / Wide-Format / All-in-One models. Some examples:  • WF-7210, WF-7710, WF-7720  • WF-3520, WF-3530, WF-3540, WF-3620, WF-3640  • WF-7110, WF-7610, WF-7620  • Epson L1455, WF-3010DW etc.

The Canon MC-G03 Maintenance Cartridge is a user-replaceable component designed for select Canon PIXMA MegaTank printers. Its primary function is to collect waste ink generated during printhead cleaning cycles and excess ink overspray during regular printing operations. This helps maintain optimal print quality and prevents internal ink leakage, ensuring the smooth functioning of your printer.
Key Features:
•Functionality: Collects waste ink during cleaning cycles and excess ink overspray.
•User-Friendly Replacement: Designed for easy replacement by users, reducing the need for professional repair services.
•Compatibility: Compatible with various Canon MAXIFY MegaTank printer models, including GX3020, GX4020, GX3040, GX3050, GX4040, and GX4050. 
•Maintenance Alerts: The printer notifies users when the cartridge is full and requires replacement.
•Product Code: Canon part number 5794C001.

Here's an image of the Epson S2100 (SC13MB / C13S210057) maintenance chip, the small printed circuit board used to reset the printer’s waste ink counter.
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What Is the “Maintenance Chip” for Epson S2100?
Function: This chip is embedded in Epson’s maintenance (waste ink) box. It tracks the level of waste ink collected and communicates with the printer. Once the box is full, the printer stops functioning until the chip is reset or replaced.
Key Role: It resets the maintenance or waste ink counter—restoring printer functionality once the waste tank is replaced or serviced.

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Technical Info & Compatibility
Part Numbers: Common references include SC13MB, S210057, and sometimes E‑S2100 depending on the region or supplier.
One-Time Use: Most chips are single-use. Once the waste ink counter hits its limit, a new chip must be installed with the fresh maintenance box.
Compatible Printers:
Epson SureColor T-Series: T2100, T2170, T3100, T3130, T3170, T5100, T5130, etc.
Epson SureColor F-Series: F500, F530, F531, F560, F570, F571, etc.

Compatibility / Model Fit
• The C9344 maintenance box is designed for a wide range of Epson printers. Some listed compatible models include:
• Expression Home / small-all-in-one: e.g., XP-4100, XP-4105. 
• WorkForce / All-in-one: e.g., WF-2810, WF-2830, WF-2850, WF-2950. 
• EcoTank / Ink-tank models: e.g., L3550, L3560, L5590. 
• Because of the wide model variation, it’s important to check your specific printer model and ensure the maintenance box part number matches.
• Note: While many models are listed, there may be regions/model variations. Always confirm via Epson’s official support or your local dealer.

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Key Features & Specifications
• OEM original Epson part number: C12C934461 / C9344. (Alternate naming: EWMB3 in some compatible listings) 
• Purpose: Stores waste/flushed ink from print head cleaning and maintenance routines. 
• User-replaceable tank, designed for easy installation. 
• Alerts when the maintenance box is nearing its life/capacity, via the printer’s software/interface. 
• Some compatible listings mention Indian origin “Made in India” for compatible part variations. 

Compatibility
• The maintenance box is designed for use with a specific set of Epson printers (often Epson EcoTank, Epson WorkForce, Epson ReadyTank, etc). Some models listed include:
• EcoTank Photo ET-8500, ET-8550 
• EcoTank Pro ET-16600, ET-16650 
• WorkForce EC-C7000, ST-C8000, ST-C8090 
• WorkForce Pro WF-7310, WF-7820, WF-7840 
• Compatible also referenced for L-series models like L15150, L15158, L15160 etc via third-party listing. 
• It’s very important to check your specific printer model against the compatibility list before buying — the maintenance box must match the printer’s design and sensor logic.

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Key Features & Specifications
• OEM original Epson part: C12C934591 (alias C9345) 
• “User replaceable tank” — meaning user can remove old box and install a new one without needing a service call. 
• Alerts: The printer software will notify you when the maintenance box is nearing its capacity and must be replaced. 
• Purpose: Stores waste ink flushed from the system during printhead cleaning or flushing. 
• Packaging & product type info: E.g., some catalogues list it as part of “Printer Maintenance Kits / Supplies.” 
• UPC: 010343950962 (in one listing) 
• Country of origin (some listing): Indonesia (ID) for a version of the product. 

Function: The T6193 is a maintenance box designed for certain Epson large-format printers. It collects excess ink during printhead cleaning, borderless printing, and other maintenance cycles.
•Role: Prevents ink leakage inside the printer and helps maintain print quality and machine longevity.
•Design: It is a sealed, replaceable container with high absorbent pads inside to safely hold waste ink.
•Replacement: The printer notifies when the maintenance box is near full or full, and it must be replaced to continue printing.
•Compatibility: Commonly used in Epson SureColor and Stylus Pro series large-format printers (e.g., Epson Stylus Pro 7700, 9700, 7710, 9710, 7890, 9890, 7900, 9900 etc.).
The Epson T6193 is a waste ink maintenance box.
•It stores excess ink that gets flushed out during head cleanings, borderless printing, or system maintenance.
•Prevents ink overflow and keeps the printer interior clean.
•Design:
•Sturdy rectangular plastic container.
•Inside, it contains highly absorbent pads that safely capture and hold waste ink.
•Designed as a user-replaceable part for convenience.
•Replacement:
•The printer will display a warning like “Maintenance Box Full” when it reaches capacity.
•At that point, the T6193 must be replaced to resume printing.
•Compatibility (commonly used in):
•Epson Stylus Pro 7700, 9700
•Epson Stylus Pro 7710, 9710
•Epson Stylus Pro 7890, 9890
•Epson Stylus Pro 7900, 9900
•Other Epson SureColor / large-format printers in the same family.

This maintenance box is compatible with a wide array of Epson SureColor large-format printers, including:
SureColor F-series: SC‑F500, SC‑F530, SC‑F531, SC‑F560, SC‑F570, SC‑F571
SureColor T-series: SC‑T2100, SC‑T2170, SC‑T3100, SC‑T3100M, SC‑T3100N, SC‑T3130, SC‑T3130N, SC‑T3160, SC‑T3170, SC‑T3170X, SC‑T3180X, SC‑T3180D, SC‑T3180N, SC‑T5100, SC‑T5100M, SC‑T5100N, SC‑T5130, SC‑T5160, SC‑T5170, SC‑T5180N
Key Features & Details
Model Information:
OEM Model Codes: S2100 / C13S210057 / SC13MB
Function: Captures ink discarded during printer maintenance to prevent internal contamination and ensure precise operation.
Replacement Alert: Most printers will notify you when the box needs replacement—indicating fullness or end of service life .

Here’s what the Epson C9345 Ink Maintenance Box (also known as part C12C934591) looks like: a compact, rectangular, dark-gray plastic tank—roughly 7 in × 2.6 in × 2.1 in—designed to catch and hold waste ink generated during printhead cleaning.
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Description & Function
The C9345 Maintenance Box is a user-replaceable tank that stores the ink flushed from your printer during printhead cleaning cycles.
Your printer and its software will notify you when the maintenance box is nearing capacity or needs to be replaced.
Specs & Compatibility
Part Number: C9345 (same as C12C934591)
Dimensions: Approximately 7 in long, 2.6 in wide, and 2.1 in high.
Weight: Around 0.3 lb.
Origin: Made in Indonesia (ID).
Compatible Printers
Designed for use with several models across Epson’s EcoTank and WorkForce lines, including:
EcoTank Photo: ET‑8500, ET‑8550
EcoTank Pro: ET‑16600
WorkForce: EC‑C7000, ST‑C8000, ST‑C8090, WF‑7310, WF‑7820, WF‑7840
Also compatible with WorkForce Pro WF‑M4119, WF‑M4619, ST‑C5000/Supertank C5500, etc.

The Epson C9344 Maintenance Chip is an integral component of the C9344 Ink Maintenance Box, designed to monitor and manage waste ink levels in compatible Epson printers. This chip tracks the accumulation of waste ink during print head cleaning cycles, ensuring optimal printer performance.

The C9344 Maintenance Chip functions as a counter, recording the amount of waste ink collected in the maintenance box. Once the chip indicates that the maintenance box is full, the printer will prompt for its replacement to prevent overflow and potential damage. Some users opt for a chip resetter to reset the chip’s data, allowing continued use of the maintenance box. 

The T6712 box is a waste ink maintenance box (sometimes called an ink maintenance tank). It collects and stores ink that is flushed out during routine printer operations, especially print head cleaning cycles. Its job is to prevent that waste ink from leaking inside the printer or damaging components. 
• When Replacement Is Required:
Your Epson printer (or its software) keeps track of how much waste‐ink has been collected. When the maintenance box approaches capacity, it triggers a warning “Maintenance Box Full” or similar message. At that point, the T6712 must be replaced in order to keep printing operations going. 
• Part Number / Identifiers:
• Epson part T6712, also referred to as T671200. 
• OEM (original equipment manufacturer) product. 
• Compatible Printers:
The T6712 is used with multiple Epson WorkForce / WorkForce Pro series printers. Examples include:
WF-6090, WF-6590, WF-8090, WF-8590, the R-series (e.g. R8590), and other similar models. 
• Design / Physical Features:
• It’s a sealed tank/tank‐packaging with absorbent material or pads inside that soak up the waste ink.

The Epson T6997 (C13T699700) is a user-replaceable maintenance box designed to absorb and store excess ink expelled during printer cleaning cycles and print operations. It plays a vital role in maintaining print quality and preventing internal ink buildup.
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Key Specifications & Features
Type: OEM maintenance box (waste ink tank)
Also known as "Maintenance Tank" or "Porous Pad Assembly"
Part Numbers: T6997, T699700, 1826003, C13T699700
Printer Compatibility:
Primarily supports Epson SureColor large-format models:
P6000, P7000, P7500, P8000, P9000, P9500
T3460, T3470, T5400, T5470, T3400 series
Also listed as compatible with models like T3475, T5475r, P7570, P9570
Capacity:
Designed for high-volume, large-format environments
For instance, one source notes a page yield of around 50,000 pages
Installation:
Simple user-replaceable installation
Printers typically alert when the box is nearly full
Purpose & Benefits:
Collects waste ink to keep internal components clean
Helps maintain print quality and printer longevity
Reduces downtime with easy replacement

The C9387 (PXMB11) is a waste ink / maintenance box used in certain Epson inkjet/EcoTank printers.

Its job is to collect the waste/overflow ink that gets produced during print head cleaning, purging, or maintenance cycles, so that the ink does not leak or damage internal parts.

When the waste ink pad or box becomes full, printers will often signal an error (“maintenance box full” or similar), and printing may be blocked until it is replaced.

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Compatibility & Models

The C9387 / PXMB11 maintenance box is compatible with several Epson models, notably:

Epson EcoTank / M series: M1050, M1058, M2050

Epson PX-series: PX-S161T, PX-M161T

Also sometimes cited as “Epson maintenance box for M161T” in variant listings.

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Structure & Features

The maintenance box typically contains a porous sponge / pad or “waste ink pad” that absorbs the ink.

It also uses a chip / counter reset mechanism so that, when replaced, the printer’s internal waste-ink counter can be reset (or it “knows” that a fresh one is in place).

Some third-party versions highlight features like “high density sponge, no spill, easy installation” in their marketing.