9840C error code 9840C error code gerry2231 (TechnicalUser) (OP) 14 Jul 11 10:19 We just received and installed a couple of hand-me-down 9840 drives from a sister Data Centre. One works fine, but the other will not come online and has an error code in the drive display.i.e. 2C11:Dmp1 We have no manuals. I'm wondering if someone could give me a hint, or point me to an online source where I could look up errors. RE: 9840C error code TekAndy (TechnicalUser) 29 Jul 11 14:59 The error calls out a tape mark not found when performing a backward space file command. If the error is blinking on the op panel, it is only indicating there is (1)dump saved in the memory, and not an actual hardware failure. Make the device offline, and go to the DRV menu. select make dump tape. load a scratch tape and it should eject when completed. You will have to go through the "make dmp tape" process again, this time loading the new "dump tape". This should remove the dump from the drive. You can now keep this tape a dump tape, or run the "make data tape" command and it can be used as a scratch tape again.Andy RE: 9840C error code gerry2231 (TechnicalUser) (OP) 3 Aug 11 15:27 Thank You TekAndy.I found a manual online and went through the process of formatting a diagnostic dump tape and wrote the dump to it.