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Chapter 7. Tests and diagnostics
This section describes the tests available for the 4610 Models 2xR and 1xR printers.
Low paper sensing and calibration
Low paper sensing is based upon the paper thickness and the core size. You can
modify the low paper and critically low sensing settings. These settings determine
the amount of paper that remains on the roll and at which time the low paper and
the critically low paper status is sent. The default settings for low paper status is 5
meters (or 5000 mm) remains on the roll and for critically low is 1 meter (or 1000
mm).
Note: Prior to turning off the printer, send a reset command to the printer. If you
turn off the printer without a reset command, when you turn the printer
back on, it starts counting motor steps from the number stored in the
printer's memory. This is not an accurate number if the printer was not able
to store the number with a reset command.
For Models 1xR, the low-paper sensor is customer-selectable for table or wall
mount, depending on application. The printer comes from the factory already in
table mount mode. For wall mount applications, you must move the low-paper
selector switch on the bottom of the printer to the WALL position.
You must calibrate the printer to accurately recognize the thickness of the paper
supply. Calibration can be done using an offline test or by a command. See "“Set
low paper calibration” on page 48", ““Summary of the offline test menus (Models
2xR)” on page 103, or “Summary of the offline test menus (Models 1xR)” on page
108”.
One printer can be calibrated for the paper supply. The calibration constant can
then be broadcast to all printers that will use the same paper.
To set the low paper supply sensors of all printers within your system:
1. Run the calibration on one printer. See Table 30.
2. Read out MCT#0x28 from the calibrated printer.
Note: The calibration constant is stored in MCT 0x28. System management can
interrogate all printers to see if one has been recently calibrated.
3. Clear the high-order bit and send the value to all printers in the enterprise.
Table 30. MCT load command settings for low paper and critically low paper
Dec Hex
38 26 Low paper amount. This is the amount of paper left in the
printer when the low paper status is sent. Default is 5 meters
(5000 or 0x1388 number stored as mm).
39 27 Critically low paper amount. This is the amount of paper
remaining in the printer when the low paper status is sent.
Default is 1 meter (1000 or 0x03E8 number stored as mm).
© Copyright IBM Corp. 2008, 2011 101
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