HP LaserJet M9040/M9050 HP LaserJet M9040/M9050 MFP - Software Technical Refer - Page 161

EconoMode Select the EconoMode check box to reduce the amount of toner on each printed page. Selecting this option extends the life of the toner supply and reduces cost per page. However, it also reduces print quality. The printed image is lighter, but it is adequate for printing drafts or proofs. HP does not recommend the full-time use of EconoMode. If EconoMode is used full-time when the average toner coverage is significantly less than 5%, it is possible that the toner supply will outlast the mechanical parts in the print cartridge. If print quality begins to degrade under these circumstances, install a new print cartridge, even if toner remains in the cartridge. NOTE: The EconoMode setting only works if a genuine HP print cartridge is installed. HP print cartridges can measure the life of the mechanical parts and the quantity of toner. If the EconoMode setting is used frequently, the mechanical parts can wear out before the supply of toner is depleted, increasing the risk of toner leaking. The EconoMode option can be activated from the product control panel, from the Print Quality tab in the software program properties, or from the Print Quality group box on the Paper/Quality tab in the driver. If the EconoMode option is selected from the control panel, and if the product has a genuine HP cartridge, the ON setting overrides any setting made in the program or driver, as shown in the following table. Driver EconoMode setting HP Cartridge for print job Selected Yes Selected No Not selected Yes Not selected No Selected Yes Selected No Not selected Yes Not selected No Product control panel reports On Off On Off Off Off Off Off EconoMode setting takes effect Yes No Yes No Yes No No No HP PCL 5, PCL 6, and PS emulation drivers for Windows ENWW Paper/Quality tab features 143