Hp business inkjet 1200d service manual - HP Inkjet 1200dn Printer

SOURCE: Service/repair manual

sure..get a new control board..since that one is literally toasted

SOURCE: Trouble with HP Business InkJet 1000

ur check all the sensor one bye one indivisual in dislpay scareen error code are different .mpost probablity this error front cover.

SOURCE: printer error in my hp business inkjet 2800 printer

Hi,
not sure what error you are facing, but below link might be able to help you on the appropriate actions to take...
http://etech.maiila.com/hp-color-laserjet-2800-all-in-one-printer-series-driver-manual-and-software-download-including-for-vista

good luck

SOURCE: HP business inkjet 1200 printer does not print footers

WOULD LIKE TO PRINT STUFF OF THE COMPUTER

SOURCE: hp business inkjet 1200, replaced ink cartridge

the error's you were getting on the CIS could have been from the chip. Try setting the date back on the computer or on the printer back 1 year. See if that makes a difference (if you still have the CIS and the printer). Best advice, get an updated chip.