Canon

Canon Canon PIXMA Pro-100 CLI-42 Light Gray Ink

4.7 (256 reviews)

Deliver precise light gray tones in your PIXMA Pro-100 prints with Canon's dedicated CLI-42 ink tank.

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*Price sourced from Amazon.com. Last updated:Jul 15, 2026.Price and availability are subject to change.

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Overview

The Canon CLI-42 Light Gray Ink Tank is one of eight individual ink cartridges in the PIXMA Pro-100's dye-based ink system. Its specific role is to expand the printer's tonal range by filling in the subtle gradations between mid-gray and white, which helps eliminate visible banding and graininess in highlight regions. This makes it particularly valuable for photographers who print portraits, landscapes, and fine-art black-and-white images where smooth tonal transitions are critical.

As a genuine Canon consumable, the CLI-42 Light Gray is formulated to work in concert with the other seven CLI-42 inks and Canon's photo paper lineup, ensuring color consistency and long-lasting print durability. The built-in Smart LED indicator provides a quick visual check of ink status without needing to open software utilities. While the 180-page yield means more frequent replacements for heavy users, the individual cartridge design ensures you only replace the color that is actually depleted, helping manage overall ink costs across the eight-cartridge system.

Key Features

Optimized for photographic print quality when used with Genuine Canon Photo Papers

Get standard-yield capacity per ink tank while enjoying cost savings

Original Canon ink tanks deliver long-lasting quality to all your photos and documents

Smart LED with Canon logo

Specifications

Brand
Canon
Model
6391B001 (CLI-42)
Ink Color
Light Gray
Ink Type
Dye-based
Page Yield
Approximately 180 pages
Compatible Printer
Canon PIXMA Pro-100
Special Feature
Smart LED indicator with Canon logo

Pros & Cons

👍 Pros

  • Produces smooth tonal transitions in highlight and midtone areas of photographic prints
  • Smart LED indicator makes it easy to monitor remaining ink levels at a glance
  • Optimized for use with Canon genuine photo papers for accurate color reproduction
  • Individual ink tank means you only replace the light gray when it runs out, not an entire multi-color cartridge

👎 Cons

  • Compatible only with the Canon PIXMA Pro-100, limiting use to a single printer model
  • Page yield of approximately 180 pages is relatively low for frequent printing
  • Higher per-cartridge cost compared to third-party alternatives
  • Part of an eight-ink system, so maintaining a full set of CLI-42 cartridges adds up in expense

Frequently Asked Questions

No, the CLI-42 Light Gray ink tank is designed exclusively for the Canon PIXMA Pro-100 printer.
The CLI-42 Light Gray ink tank has an approximate yield of 180 pages under standard conditions.
The light gray ink works alongside the other seven CLI-42 ink colors to produce smoother tonal gradations, reduce visible graininess in highlights, and improve neutral gray balance in photographic prints.
No, the CLI-42 is a tank-only cartridge. The printhead is built into the PIXMA Pro-100 printer itself.
The ink tank features a Smart LED indicator with the Canon logo that helps you monitor ink status directly on the cartridge.