Ricoh D104 Field Service Manual page 668

6. Troubleshooting
• Basically, there are different setting values for 1st side and 2nd side of thick paper when using the
by-pass printing mode. When using thick paper in the by-pass printing mode, adjust the PTR current
of Special Paper 4 for the 2nd side of thick paper. Always use the adjusted setting of Special Paper
4 when the 2nd side of thick paper is fed from the by-pass tray.
Action 3
Increase the amount of the toner per area (M/A). However, too much toner may cause the toner blasting.
Action Procedure
1. Set the following SP modes to the values highlighted in bold.
• Set the setting of SP3-501-001 to 0.500 mg/cm
• Set the setting of SP3-501-002 to 0.495 mg/cm
• Set the setting of SP3-501-003 to 0.495 mg/cm
• Set the setting of SP3-501-004 to 0.495 mg/cm
6
2. Execute Process Control with SP3-011-001.
Action 4
Changing the correction value of the PTR current for each paper size can solve the grainy image.
The paper size correction coefficient setting for non-special paper types is applied to several different
paper types at once. This can create side effects for paper types on which the symptom is not occurring.
Therefore, if you only want to change the setting for one type, use the Special Paper settings.
Action Procedure
1. Increase the correction value of the PTR current for each paper size in steps of 10% against the default
setting for each SP mode until +30% against the default setting of each SP mode.
- If the current Paper Type setting is one of the following, change it to Special Paper 1, 2 or 3.
• Plain Paper 1, Plain Paper 2, Middle Thick, Thin Paper, Coated Paper: Gloss
Select Special Paper 1, 2 or 3, then adjust the settings of the following SP modes:
• B/W mode for Plain Paper: SP2-411-001 to -020
• Full Color mode for Plain Paper: SP2-412-001 to -020
- If the current Paper Type setting is one of the following, change it to Special Paper 4, 5 or 6.
• Thick Paper 1, Thick Paper 2, Thick Paper 3
Select Special Paper 4, 5 or 6, then adjust the settings of the following SP modes:
• B/W mode for Thick Paper: SP2-511-001 to -017
• Full Color mode for Thick Paper: SP2-512-001 to -017.
666
2
for Maximum M/A: Bk.
2
for Maximum M/A: C.
2
for Maximum M/A: M.
2
for Maximum M/A: Y.