Search documented codes only within their listed model scope. The same digits can mean something else elsewhere.
Search an exact error or message
There are 86 source-read, model-scoped code meanings here, including seven HP DeskJet 2855e codes collected into one comparison guide. This is not a complete list of printer faults. Choose a model or brand first: “Cannot Print ##” in a manual is a placeholder, not a match to every numeric fault.
No code? Start with the symptom
These guides cover different diagnostic paths. Start with the printer's own display or report, then choose the matching symptom; do not borrow a code meaning from another model.
Offline or unreachable
Separate the printer, network and computer queue.
Driver unavailable
Check the exact model, OS and installation route.
Job stuck in queue
Check one job and the spooler before clearing a queue.
Paper path or false jam
Inspect only user-accessible trays and covers.
Streaks or faded output
Compare a printer-generated page before cleaning.
Ink or cartridge warning
Read the exact warning before ordering a part.
Toner or drum message
Identify which component the printer names.
Scanner not found
Confirm the model has scanning and test the scan route.
Browse verified codes by brand
Found a mismatch? Request a correction with the public source URL and exact model, without passwords or full serial numbers.