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Black rectangular toner collection unit with smooth matte finish

HP

HP A91Z4A LaserJet Toner Collection Unit Black

SKU CH-QG9S-W1J50

Collects waste toner from compatible HP LaserJet printers, operating between 59 and 90°F with 10 to 90% RH storage humidity

  • Cartridge ColorBlack
  • Replacement ModelHP
  • Storage Humidity10 to 90% RH
  • Operating Temperature59 to 90°F
  • Storage Temperature-4 to 104°F
  • FeaturesHP LaserJet Toner Collection Unit
  • Collects waste toner to keep prints clean
  • Genuine HP unit ensures reliable fit and function
  • Operates from 59 to 90°F for office environments
  • Stores safely between -4 and 104°F
  • Tolerates humidity from 10 to 90% RH

HP LaserJet Toner Collection Unit

This genuine HP unit collects waste toner during printing to keep internal components clean. It is designed for compatible HP LaserJet printers that require the A91Z4A part number. Offices and workgroups relying on consistent monochrome output will find it a necessary maintenance item.

Operating range and storage

The unit operates between 59 and 90°F and can be stored from -4 to 104°F. Storage humidity tolerance spans 10 to 90% RH. These ranges suit typical office environments without special climate control.

Build and daily handling

The cartridge installs directly into the printer's designated waste-toner slot with no tools required. Its sealed construction prevents toner spills during removal and replacement. Not intended for printers that use a different waste-collection part number or for colour devices needing separate containers.

Highlights

  • Collects waste toner to keep prints clean
  • Genuine HP unit ensures reliable fit and function
  • Operates from 59 to 90°F for office environments
  • Stores safely between -4 and 104°F
  • Tolerates humidity from 10 to 90% RH

Specifications

BrandHP 3P-IPG
Part NumberA91Z4A
Cartridge ColorBlack
Replacement ModelHP
Storage Humidity10 to 90% RH
Operating Temperature59 to 90°F
Storage Temperature-4 to 104°F
FeaturesHP LaserJet Toner Collection Unit
Shipping weight0.86 kg
Package size556 × 152 × 135 mm

Questions about this item

How do I install the HP LaserJet Toner Collection Unit A91Z4A and what step do people often miss?

Power off the printer, open the front access door, slide the old unit out, insert the new A91Z4A until it clicks, then close the door and power on; the step users miss is forgetting to remove the protective seal on the new unit before insertion.

What maintenance or replacement will the A91Z4A collection unit need later?

The unit is a waste-toner container; when the printer signals it is full, replace the entire A91Z4A unit — no cleaning or partial servicing is possible.

What limit appears first on the A91Z4A during sustained printing?

The unit reaches its waste-toner capacity first; the printer will stop and prompt replacement once the internal reservoir is full.

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