Canon GP160DF, Service Manual

Page: 464 / 797

CHAPTER 2 STANDARDS AND ADJUSTMENTS
2-6
5. Printer unit receptacle connector mount positioning adjustment
When the printer unit receptacle connector is removed or attached, adjust the mount
position, following the procedure described below.
1) Loosen the 3 receptacle connector screws.
2) Adjust so that the interval between the printer unit frame and the receptacle connec-
tor is 3.5 ± 0.5mm.
Figure 2-10
6. Check the pressure (nip width) of the fixing pressure roller
This machine has no adjustment mechanism for the fixing assembly nip width.
However, if the nip width is not correct, faulty fixing may occur.
Therefore, check the fixing assembly nip width by following the procedures described
below. If the nip width is outside the standards, replace the fixing assembly.
1) Make one solid black copy on size A3 paper.
2) Place the black side of the paper face down and set the solid black copy in the multi-
feeder.
3) When the leading edge of the paper comes out into the copy tray, quickly switch off
the power source and leave it as is for about 10 seconds.
4) Remove the paper as you would to clear a paper jam from the printer unit.
5) Measure the width of the part of the removed paper that is wet and shiny with toner.
Check that the width is within the range displayed in Table 2-1.
3.5
±
0.5mm
Screws
Printer unit