I also got the HP manual crane trucks national service manual from here (should be a PDF link). Many years ago I started into the IT business as a hardware repair tech. Part of the duties of this position included repairing HP LaserJet II and III (yes, that long. Finding information This User s Guide for the HP DesignJet 430, 450C and 455CA printers contains the following types of information: Setup Maintenance. Leave a Reply. At this point the printer is disassembled as far as its going to go and the new belt just has to be added (put on carriage assembly, then pulley, then motor) and the unit reassembled. Note though that I had to air hose out the. Schematics 4 Free Login: Password: Search Browse Upload MostWanted. Links Forum Info/Contacts Search service manuals database Please, enter search term! Search results for: (found: ) ask for a document. File Date Description Class Size Popular Mfg. However, I should note that once I got the 450C halfway disassembled I realized that I didnt have a spare waiting for me at the office if I goofed up along the way so there wasnt any margin for error. Note the third arrow on the right, take special note of how the end of the strip is supposed to mount when reassembling. Ill also point out that Ive removed the trailing white data ribbon from its clips and put it around the back right.