ers. The fence must be positioned appropriately so that lifting the table causes
the light-blocking brush to move as well.
- Once the output fence is positioned and squared, use a long straight-edge
(48" or more) to set the input fence position parallel and coplanar with the output
fence.
- The movable fence on the input side can also be adjusted using the set screws
to change both the angle and the height above the table rollers.
- The flat metal extension, attached to the table near the pivot point, bridges the
table to the platen. This extension has been known to become deformed. If me-
dia feed problems are encountered, check the condition of these extension and
reform them as necessary.
3. Ink Delivery System
The ink delivery system on the 5400 parallels in structure the design found on the DisplayMaker
72s “Gator” solvent printer and subsequent solvent and UV printers, consisting of:
Off-Head Supply (1 liter per color channel)
Tubing
Printheads (1 or 2 per color channel, depending on model)
Air Vacuum
Service Station
The air vacuum system is a discrete set of parts subject to its own discussion, but its sole
purpose is interaction with the ink system, so it will be included in this discussion. The service
station, while clearly not part of ink delivery, is integral to the performance of the printheads
and so is included here. Each of these subsystems is described in detail below.
Off-Head Supply (OHS) and Tubing - The Off-Head Supply consists of these compo-
nents. There is one instance of each component per color channel:
- 1-Liter bag-in-box, with integral filter and quick-connector. This complete as-
sembly is a consumable part and is disposed of when empty.
- Ink profiler
- Quick-connect receptacle
- Ink pump (includes two short lengths of tubing)
- Check Valve
- Large ink filter (considered permanent, i.e., not a consumable part)
After passing through the above components, ink flows through a long tube in the
track assembly until it reaches the printheads.
A single OHS (off-head supply) control board interfaces with the ink profilers and
the ink pumps. This board in turn communicates with the I/O board in the main
electronics box.
5400 Technical Training Manual
MacDermid ColorSpan Confidential
Page 21 of 39
MacDermid, Inc. 11311 K-Tel Drive, Minnetonka, MN 55343
Phone: 952-944-9457 Fax: 952-944-8507
