HP 750 - Manual (Page 216)

10-18 C4705-90000 Product History and Service Notes
Install a Line on the Mark Encoder
Date: 1 February 1996
Service Note: C3195AĆ05
C3196AĆ07
C3198AĆ05
Supersedes: None
Products: HP DesignJet 750C (C3195A)
HP DesignJet 750C (C3196A)
HP DesignJet 750CM (C3198A)
Serial Numbers: C3195A ESA0000000/ESA5B05350
C3196A ESA0000000/ESA5B20304
C3198A ESA0000000/ESA5B02306
To be performed by: HPĆQualified Personnel
Parts Required:
Part Number Description Qty
N/A DĆsize Matte Film Media 1
C3195Ć60141 Mark Label Kit 1
Situation
In firmware revisions A.02.09 or higher, the paper advance calibration algorithm was
improved. In order to optimize its performance, modify the mark encoder so that the
reference for the paper advance error compensation is more accurate.
Solution
A line or a notch is included in the middle of the mark encoder. In units that are in the range
of serial numbers listed above, follow this procedure to add a line on the mark encoder.
Please, verify that your unit is within the serial number ranges that are quoted above. The
units produced after these ranges will have a notch in the middle of the mark encoder, so the
line will not be required.
Procedure to Install the Line on the Mark Encoder
After installing firmware revision A.02.09 or higher:
1 SwitchĆoff the device.
2 Remove the media.