Canon NP6218, FY8-13EX-000 service manual 10-14

CHAPTER 10 TROUBLESHOOTING

Item	Function	Description				Remarks\
No. 301	Automatic lamp					The lamp intensity
	intensity adjustment	Lighter 9				is automatically
	for AE scans					adjusted so that the
		Copy				copies of the Test
						Chart will be made
		density 5
						at density 5.
		Darker
		Test Chart			Density of
					original
No. 302	Copy density					q A lower setting in
	(development bias)					service mode causes
	reference point					the AE copies to be
	adjustment for AE					darker.
	mode					w A higher settings
						in service mode
			w	q		causes the AE copies
						to be lighter.
		Lighter 9				default:	0
		Copy				range:	–26 to +26
		density 5				After adjustment with
		Darker				the test sheet NA-3,
					Density of	using AE mode,
		Test Chart
					original	density adjustment
						should show ‘5’.
						In non-AE mode,
						density ‘5’ must also
						be apprppriate
						(adjusted with knob
						VR302).
No. 303	Copy density					q A higher setting
	(development bias)					in service mode
	slope adjustment for				q	causes copies of a
	AE mode	Lighter 9				newspaper to be
					w	lighter.
						w A lower setting
		Copy
		density 5				in service mode
						causes copies of a
		Darker				newspaper to be
		Test Chart	News- Density of			darker.
			paper		original
						default:	0
						range:	–26 to +26

Table 10-201

10-14 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)