Xerox 7142, Service Manual

Page: 142 / 341

5 Self-Diagnosis Mode RJ-901C/RJ-900C Maintenance Manual
5-24
5.5.1 Skew Check Menu
Feed the paper to check the skew size using sensor.
When selecting this item from the Adjustment Menu, the plotter feeds the loaded media by one pass and
checks difference of the media edge positions before and after the media feed detected by the sensor.
NOTE
The plotter determines the setting reference position of the media during the first detection at left edge
of the media.
The plotter determines the media setting reference position during first detection of media left edge.
Therefore, the media that is not set correctly may cause errors as below.
• Media error occurs during skew check and plotter operation stops.
• During media initial operation after power is turned on or media is cut, "Undefined Paper"
frequently occurs.
Table 5-5 Skew Amount Specification
Condition Specification
Cut sheet 1.5 mm or less
Roll media 7 m 2.5 mm or less
50 m 10 mm or less
[Enter] key
Media set
Finish media initialization
Media edge detection finishes normaly
0.1 m increments
If media is not set