Using this Manual Purpose This Service Manual contains information necessary to troubleshoot and service: ● HP Designjet 820 MFP, Model Q6685 ● HP Designjet 4500 Scanner, Model Q1277A ● HP Designjet 4500 MFP, Model Q1276A ● HP Designjet 4520 Scanner, Model CM770A ● HP Designjet 4520 HD MFP, Model CM769A ● HP Designjet HD Scanner, Model CQ654A & CQ654B. ● HP Designjet T1100 MFP, Model Q6713A ● HP Designjet T1120 HD MFP, Model CK841A ● HP Designjet T1200 HD MFP, Model CQ653A & CQ653B. For information about using the product, see the corresponding user guide. This Service Manual is about the Scanner and the integration with the printer as a copier.
In order to troubleshoot the printer, see the corresponding Service Manual for the printer. Readership The procedures described in this Service Manual are to be performed by HP Certified service personnel only. Part Numbers Part Numbers for service parts can be found in Parts and Diagrams on page 49 . ENWW v