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Install Hardware Options
Printhead Upgrade Kits
1/13/2016 ZD420 User’s Guide 212485-001 Rev. A
Printhead Upgrade Kits
There are two (2) printhead upgrade kits. There is one to change the printer from 203 dpi to 300
dpi printing and a second kit to change the printer from 300 dpi to 203 dpi printing.
The same procedures are used to change the printer between 203 and 300 dpi printing. The
printhead and platen (drive) rollers must be changed. The printer automatically detects the
change in printheads and the platen roller materials are black (203 dpi) and gray (300 dpi).
The printheads used in the upgrade kits include a 203 or 300 marking for to help you keep the
unpackaged upgrade printhead separate from the original printhead. The original printhead
contains no marking identifying its print resolution.
1. Turn the printer off and disconnect the power.
2. Use the procedure, Platen Cleaning and Replacement on page 124., to replace the platen roller.
3. Use the procedure, Replacing the Printhead on page 128, to replace the printhead.
4. Re-attach power and turn the printer on. The printer will automatically detect the change in
printhead (but not the platen) when the printer verifies the printers configuration.
For best results and the latest printer features and operation, download and install the latest
printer firmware. See Updating Printer Firmware on page 92.
203 dpi Platen (black)
300 dpi Platen (gray)
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