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5.4.7 Envelope Ramp (DP6 below S/N 00588)
1. Move the carriage toward the right so that the printhead nose is still above the black platen but the flat top
surface of the white plastic ramp is beneath the carriage flange.
2. Loosen the ramp screw on the wheel guide and adjust the ramp height so that the ramp raises the carriage
0 to .010" (.25 mm) off the platen. Insure that the upper surface of the ramp is parallel to the carriage
flange and that it doesn't move when the screw is tightened.
5.4.8 Document Input Tray Height
1. Remove the cabinet (see 5.5.1).
2. Raise the input tray to its non-operating position.
3. Slightly loosen the 2 screws that fasten the tray support to the side plates and raise the tray support as far
as possible.
4. Lower the input tray until it is horizontal (the height of the input tray near the tray support is within .03"
(0.8mm) of the height of the tray at its front edge) and tighten the screws so that the tray support holds the
input tray horizontal.
5.4.9 Document Drive Roller Spring Force
The document drive roller springs are formed wires that pull both front and rear upper document drive rollers
against the lower rollers. The springs are mounted to both document drive side plates and adjusted by raising
or lowering the cams mounted on the front screws fastening the side plates to the platen. Incorrect spring
force can cause document skewing, slipping or stalling
1. Remove the cabinet (see 5.5.1).
2. Use a spring gauge to measure the force required to raise the right end of the front pinch roller very slightly.
It should measure 3 to 4 ounces (85 to 115 gms).
3. If necessary, adjust this force by loosening the roller spring cam screw on the right side plate and raising or
lowering the cam.
4. Repeat steps 2 & 3 on the left end of the front pinch roller but adjust to 12 to 13 ounces (340 to 370 gms).
5.4.10 Document Edge Guide Squareness
1. Insert a known good square against the front drive rollers so that it contacts the rollers evenly. Slide the
square leftward until it contacts the edge guide. The guide and the perpendicular edge of the square must
be parallel.
2. If adjustment is necessary, remove the guide cover from the edge guide by prying it upward.
3. Loosen the 3 nuts fastening the edge guide to the input tray.
4. Insure that the square is evenly contacting the rollers and that its left edge is flush against the document
sensor PCB.
5. Position the edge guide with its right edge flush to the square and its rear edge flush to the sensor PCB. At
the same time position the clear top guide so that its right rear corner fits flush into the mating edges of the
stainless steel guide above the rollers. Tighten the 3 nuts.
6. Reattach the decorative cover using new pieces of 1/8" thick foam adhesive tape.
