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502 bytes added ,  18:48, 22 January 2021
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# HP OfficeJet Pro 7740 Wide Format All-in-One Printer
__Email address for printing__printing PDFs__: < href="[mailto:89ith27etcab@hpeprint.com">89ith27etcab@hpeprint.com</a>]
## Maintenance[manual](http://h10032.www1.hp.com/ctg/Manual/c05216524)
## Ink replacement  If you need new ink, don't buy HP ink. There are cheaper alternatives such as [WOKOK remanufactured 952 XL Ink on Amazon](https://www.amazon.com/dp/B08P412CGM/ref=cm_sw_r_cp_api_glc_fabc_gY1aGbD1KTEV2?_encoding=UTF8&psc=1).  Some off-brand inks __don’t work__ such as [this one](https://www.amazon.com/OfficeWorld-952XL-Cartridges-Combo-Pack/dp/B08F2CBQDB/ref=sr_1_21_sspa?crid=2GK9D4PUKVQ7P&dchild=1&keywords=hp+952+ink+cartridges&qid=1599573448&sprefix=hp+952+ink+%2Caps%2C911&sr=8-21-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEyM0xTVkU5N1c1SFNEJmVuY3J5cHRlZElkPUEwNDkxMDk0MUExT0xDSzIySEhMSSZlbmNyeXB0ZWRBZElkPUEwNzkyNjIxMVVIRVNLN1pTSkVOSSZ3aWRnZXROYW1lPXNwX210ZiZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU=).
## Troubleshooting
### Printer is OFFLINEIf the printer appears to be offline, run the printer troubleshooter on your Windows computer. Oftentimes, it wakes up the printer again. Alternatively, you can use print from your iPhone, which works more reliably than printing from Windows laptops. You can also send a PDF to the following email [mailto:89ith27etcab@hpeprint.com 89ith27etcab@hpeprint.com].As your last resort, you could try to use this [HP Print and Scan Doctor](https://support.hp.com/us-en/document/c04249080) application. Alternatively, you can use print from your iPhone, which works more reliably than printing from Windows laptops.
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