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Replace the toner cartridge
This printer indicates when the toner cartridge level is low. The actual toner cartridge life remaining can vary. The
toner cartridge does not need to be replaced at this time. Consider having a replacement cartridge available to
install when print quality is no longer acceptable.
Continue printing with the current cartridge until redistributing the toner no longer yields acceptable print quality.
To redistribute the toner, remove the toner cartridge from the printer and gently rock the cartridge back and forth
about its horizontal axis. For graphical representation, see cartridge replacement instructions. Reinsert the toner
cartridge into the printer and close the cover.
Table 3-1 Toner cartridge information
Item Description Cartridge
number
Part number
HP 37Y Extra High Yield Black Original LaserJet
Toner Cartridge
Extra high-capacity replacement toner cartridge 37Y CF237Y
HP 37X High Yield Black Original LaserJet Toner
Cartridge
High-capacity replacement toner cartridge 37X CF237X
HP 37A Black Original LaserJet Toner Cartridge Standard-capacity replacement toner cartridge 37A CF237A
Do not remove the toner cartridge from its package until you are ready to use it.
CAUTION: To prevent damage to the toner cartridge, do not expose it to light for more than a few minutes.
Cover the green imaging drum if the toner cartridge must be removed from the printer for an extended period of
time.
The following illustration shows the toner-cartridge components.
HP 37X/HP 37A HP 37Y
2
1
3
2
2
2
1
3
3
3
1
1
1 Handle (HP 37Y Extra High Yield Black Original LaserJet Toner Cartridge only) or indentation for picking up the cartridge
2 Memory chip
3 Imaging drum
CAUTION: Do not touch the imaging drum. Fingerprints can cause print-quality problems.
ENWW Replace the toner cartridge 51
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