HP 750c Service Manual - Page 216

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. 10-18 Product History and Service Notes C4705-90000