Ricoh CH-C1 - RTB 75 b: Original size misdetection

Technical Bulletin PAGE: 1/3
Reissued:13-Feb-14
Model: CH-C1
Date: 07-Feb-14
No.: RD135075b
RTB Reissue
The items in bold italics were corrected or added.
Subject: Original size misdetection
Prepared by: Takeshi Toriumi
From: 1st tech Service Sect, MFP/Printer Tech Service
Classification:
Troubleshooting
Mechanical
Paper path
Product Safety
Part information
Electrical
Transmit/receive
Other ( )
Action required
Service manual revision
Retrofit information
Tier 2
SYMPTOM
When feeding originals with a different width perpendicular to the feed direction in Mixed
Sizes mode, the second original [A] fed through the ADF is detected as the wrong size [B].
Depending on the combination of sizes (see the chart below), this may cause a customer
to be overcharged.
Note:
 This occurs depending on the value of SP5-131-001 (Paper Size Type Selection).
 This does not occur if the width of the two originals is the same perpendicular to the feed direction
(Example: A3 SEF and A4 LEF).
 The symptom is limited to Mixed Sizes mode.
Value of SP5-131-001 is “0 (DOM/Japan)”
First original fed
Second original fed [A]
Size detected (error) [B]
A3 (SEF)
DLT (SEF)
A3 (SEF)
A3 (SEF)
A4 (LEF)
LT (LEF)
B5 (LEF)
A4 (LEF)
A4 (LEF)
DLT (SEF)
A3 (SEF)
LT (LEF)
B5 (LEF)
A4 (LEF)
B4 (SEF)
B5 (LEF)
A4 (SEF)
LT (SEF)
B5 (SEF)
B4 (SEF)
LT (SEF)
A4 (SEF)
B5 (SEF)
LT (SEF)
A4 (LEF)
A3 (SEF)
B5 (SEF)
LT (SEF)
A4 (SEF)
B4 (SEF)
11x15 (SEF)
A3 (SEF)
11x15 (SEF)
LT (LEF)
DLT (SEF)
B5 (SEF)
LT (SEF)
A4 (SEF)
B4 (SEF)
A3 (SEF)