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KODAK 1200i WIDE-FORMAT PRINTING SYSTEM
Technical Training Guide 65
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The Kodak 1200i consumes 1100 watts of power during typical operation and must be
properly grounded in accordance with regional and general equipment/electrical
grounding guidelines. Output quality problems including severe banding, ink overspray,
abnormal printer calibrations, premature and intermittent cartridge jet failure, data shift,
and personnel hazards may result if inadequate grounding is provided.
CAUTION: There is a serious safety issue when there is no earth ground connected to
the printer. The printer will basically function but can cause a safety hazard
if a person
touches the printer chassis and another electrical device such as a computer. The
voltage on the chassis can be raised to a level of approximately half the input AC
voltage. The installer should always validate the power and grounding scheme at the
installation facility. A second issue would be the lack of electrostatic discharge (ESD)
protection. Without proper grounding the ESD brushes are rendered useless. A higher
incidence of cartridge failures will occur if adequate grounding not properly supplied as
well as possible malfunctions of printer’s electronic circuitry. Review sections A – E:
A. Symptoms of ESD/Electrical Interference
1. Data Shift
Data shift problems are observed in printed output (i.e. problem appears in the horizontal
direction, projecting from either the left and/or right sides of printed image). The data
shift may also appear through the center of the image as the second picture illustrates.
NOTE: Electrostatic discharge (ESD) is a special type of transient impulse. ESD refers to the
abrupt release of charge that has accumulated on a person or object. This charge can result in
voltages above 15,000 volts. A direct ESD spark can cause component failures or malfunction.
Poor grounding and low humidity combined typically cause higher levels of media ESD discharge.