SE 86:01 code on the HP T1200 plotter - HP Designjet T1200 Large Format Color Inkjet 44 549 ft h Color 2400 x 1200 USB Plotter Printer

Hello,
This could be an issue with paper jam in the printer or out of paper sensor. Open the top cover (with HP logo) and check if any paper is stuck inside the printer, specially in the corners. This could also be an issue related to roll loaded in the sheet slot.
Please click the link below to download the user guide which will help you understand this better.
http://h20628.www2.hp.com/km-ext/kmcsdirect/emr_na-c01914944-2.pdf

remove any paper off/on machine re-insert paper check and select the right type of paper,if still same problem call for a service technician

Here is a service manual that might help you.
http://www.partsnow.com/docs/service-manuals/hp-designjet-t770-t1200-service-manual.pdf

there is a common fault on this particular printer which also affects the t770/t1200
when trying to feed a new roll of paper the plotter is asking to remove the paper from manual feed even though there is none.

the fault lies with the way the plotter is using the manual feed sensor,
there has been a technical release from HP regarding this same issue.
what to do -
1) firstly you need to find out whether the sensor really is at fault or if there is another fault which is confusing the manual sensor output.
a:- upgrade the firmware on the plotter ( always make sure your plotters firmware is upto date), cycle the power of the plotter and retry.
b:-use your user operating guide to take you through 'calibrating manual feed sensor' and retry.this is a quick process which sets the values for paper present/not present on the formatter.
c:- if the above two have failed then order a new PCA and calibrate the sensor immediately after first initialize of new Main PCA.

if the sensor fails to calibrate then I would first order a new sensor ( cheapest option first) if that fails then replace the main PCA. but always first check for any new firmwares.

First time are you opened this printer? or else some one attempted? This error indicating that re-used or un supported parts are installed..My suggestion replace with old parts check the error message..then do the trouble shoot. Error 06:00 replace formatter or Hard disc..replace one by one & do the diagnostic test then confirm the part condition, replace the defective part/parts ..But replace with new parts only..

Media_Axis motor malfunctioning/shut down.
Reconnect the drive motor connections. Perform the paper drive diagnostic,check media advance drive, replace PCA,,

This can happen due to the firmware on the plotter, even if it happens only with some postscript files.

http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&taskId=125&prodSeriesId=3980523&prodTypeId=18972&objectID=c02189041

Who did you order the ink cartridge from and is it a genuine HP cartridge

one of the printheads is bad.....check the error code again,because 060308 does not exist in hp designjet 1055cm plotter.