This chapter is a step by step guide to the removal and installation of the key components in the
product. You may find it useful to tick off the steps as they are performed. Use the illustration at
each procedure to identify the parts referred to in the text.
The procedures appear in order of removal. So the whole product can be stripped down by
starting at the beginning of this chapter and working through the subsequent procedures.
Review WARNING and CAUTION instructions before you service the product. Follow these
warnings and cautions for your protection and to avoid damaging the product.
Serious shock hazard leading to death or injury may result if you do not take
the following precautions:
Ensure that the AC power outlet (mains) has a protective earth (ground)
Switch off the printer, the scanner, and the PC, and then disconnect them from
the power source prior to performing any maintenance.
Prevent water or other liquids from running onto electrical components or
circuits, or through openings in the module.
HP Designjet T1100 MFP, 4500mfp, 4500 Scanner, 820 MFP Service Manual
Removal and Installation