September 1997 © TOSHIBA CORP.
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2460 ADJUSTMENT
(3)
Separation
Items to Check before Adjustment
Defective separation from the drum also occurs in other than separation output adjustment defects. If
this happens, check the following items. If an error is not found after carrying out the following checks,
adjust the output.
• Is the charger wire out of position or dirty?
• Is the developer unit connected? Are the developer magnetic brushes contacting with the drum?
Is the developer unit rotating during copying? Is the toner density low?
• Is the copy paper bending as it is being fed in? Is the copy paper abnormally moist?
• Is the alignment roller rotating normally?
• Is the main charger outputting?
• Is the transfer output deviating from the set value?
• Is the transfer/separation charger case earthed? Is the transfer/separation transformer earthed?
Caution during Adjustment
1
When defective separation occurs:
Increase the separation output value under the following conditions. However, note that if the sepa-
ration output value is raised too far, pockmarks will occur, and separation performance will be re-
duced. (Adjustment code = 230)
• If defective separation occurs even though the charger wire is not dirty, and
• If thin paper is frequency used.
2
When defective transfer occurs:
• Lower the separation output value when defective transfer occurs. However, note that if the sepa-
ration output value is lowered too far, the separation performance also will be reduced.
• The adjustment code varies according to where the defective transfer occurrs. Select the required
adjustment code while referring to the following diagram.
Adjustment code
Copy leading edge
Copy trailing edge
Approx. 10 mm
"230"
"232"
“230”
“232”
