MUTOH spitfire 90 - Media Sensor Sensitivity Adjustment

Spitfire – Maintenance Manual
234
AP-74096, Rev. 1.0, 09/06/05
7.13. MEDIA SENSOR SENSITIVITY ADJUSTMENT
This section explains the procedure for adjusting the sensitivity of the media sensor.
When replacing the P_EDGE sensor assembly or Mainboard assembly, adjust the media sensor.
Notes :
¾ Pay attention to the following points when adjusting the media sensor.
 This should be performed in an area where sun light and illumination do not
influence the sensor.
 The front cover and Y rail cover should be installed when performing the
work.
 When making adjustments, hold the media by hand or the media hold lever
so that the media stays still on the sensor.
¾ If the media is lifted off, the accuracy of the sensor may be affected.
 A non-conductive type screw driver should be used when adjusting the
control on the Mainboard assembly.
¾ Otherwise, a short circuit may result if the driver contacts the metal parts, such as
electronics parts on the Mainboard assembly or the frame.
7.13.1. Tools required for work
The following tools are required for adjusting the P_EDGE sensor.
Reference media: Double coated media (recommended media)
Notes :
¾ Refer to “Jig and Tool List".
7.13.2. Adjustment Procedure
Perform the adjustment following the procedures below.
Notes :
¾ The adjustment values are as follows.
 HIGH level (with media) A/D value
 In decimal number : 216 to 223 (H)
 LOW level (without media) A/D value
 In decimal number : 48 to 0 (H)
(1) HIGH level (with media) adjustment of the A/D value
Step 1 : Set the standard media.
Step 2 : Select "Check : Head Lock" in the self-diagnosis menu.