HP 750 - Manual (Page 217)

C4705-90000 10-19 Product History and Service Notes
3 SwitchĆon the device.
4 Open the window cover and verify that the mark encoder is in the upper position on the
right side of the roller platen. If the mark encoder is not in the upper position, then
perform the Mark Position test ' page 8Ć44.
5 Clean the mark encoder using the cleaning wipes Ć HP 92193N. These wipes contain
isopropyl alcohol. Allow a few seconds to ensure that the mark is dry.
6 Get a sheet containing the black adhesives lines. Identify the adhesive side (you may test
it on a piece of paper).
7 Trim a piece of the sheet containing one black line.
8 Place the line in the center of the mark encoder, positioning it parallel to the platen
roller.
9 Using a pen, softly rub on the back of the line.
10 Make sure that the:
D Line is properly stuck on the contact surface of the mark encoder
D Line is continuous and not broken.
11 If this is not the case, remove the line with a tool that can not damage the mark encoder
and clean it again using the cleaning wipes. Then repeat the procedure from step 6.
12 Using matte film media, perform the accuracy calibration ' page 7Ć6.
Administrative Information
Classification: Modification Recommended
Standards: 0.5 Hour Labor
Action Category: On Failure
Location Category: OnĆSite
Service Inventory: N/A
Used Parts: N/A
HP Responsible Until: 1 February 1998
Author Entity:
EV/F900