Sensor Service Checks; Paper Presence Sensor Check - InfoPrint 4247 Z03 Maintenance Information

Sensor service checks

You are here because the printer displayed a 002/020/099 FORMS JAMMED message, or an unrecoverable 001
END OF FORMS message.
Note: If the printer displays a 001 END OF FORMS message after you load forms, proceed to Paper presence
sensor check.
To determine whether you should investigate the FORMS JAMMED message as a paper presence sensor
condition or a tractor sensor condition, perform this test. While the message is in the display, open and close the
printer top cover.
v If the carriage moves across the print line and returns, follow the Paper presence sensor check.
- or -
v If the carriage does not move across the print line, follow the Tractor sensor check and adjustment.

Paper presence sensor check

This check informs you when to use T&D09—Sensor tune/ribbon test.
The two paper presence sensors are located near the platen in the front push and the rear push paper paths.
Before you perform T&D09, follow these steps to verify that you actually need to perform T&D09. Do not perform
T&D09 until you are instructed to do so.
1. If the printer displayed a 099 FORMS JAMMED message during Load or Park operations, determine the
cause. Load and Park problems are often customer-use problems. Do not perform T&D09 because of a Load
or Park problem. - or -
If the printer displayed a 099 FORMS JAMMED message after the operator loaded forms, the forms may have
been loaded too far onto the tractor or blocked the paper presence sensor. Thus, when attempting to reload
the forms, the sensor has already sensed paper and will display the message.
Instruct the customer that when loading forms to install the forms with the top edge of the first form to be near
the square drive shaft of the tractor assembly.
- or -
If the printer displayed a 099 FORMS JAMMED message while an operator was performing a Park operation,
advise the operator that the forms perforation must be torn off at the tear bar before confirming the Park
Chapter 5. Removals, service checks and adjustments
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