Xerox 7142 Service Manual - page 142

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